CN117894511A - High-wear-resistance wire and cable and preparation process thereof - Google Patents
High-wear-resistance wire and cable and preparation process thereof Download PDFInfo
- Publication number
- CN117894511A CN117894511A CN202410302623.8A CN202410302623A CN117894511A CN 117894511 A CN117894511 A CN 117894511A CN 202410302623 A CN202410302623 A CN 202410302623A CN 117894511 A CN117894511 A CN 117894511A
- Authority
- CN
- China
- Prior art keywords
- mass
- parts
- wear
- resistant
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 239000000835 fiber Substances 0.000 claims abstract description 140
- 239000000463 material Substances 0.000 claims abstract description 88
- 239000011241 protective layer Substances 0.000 claims abstract description 59
- 239000002131 composite material Substances 0.000 claims abstract description 52
- 238000011049 filling Methods 0.000 claims abstract description 49
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 45
- 239000011347 resin Substances 0.000 claims abstract description 35
- 229920005989 resin Polymers 0.000 claims abstract description 35
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- 239000010410 layer Substances 0.000 claims abstract description 30
- 230000001681 protective effect Effects 0.000 claims abstract description 25
- 239000004634 thermosetting polymer Substances 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 80
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 71
- 238000001035 drying Methods 0.000 claims description 71
- 244000025254 Cannabis sativa Species 0.000 claims description 54
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 54
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 54
- 235000009120 camo Nutrition 0.000 claims description 54
- 235000005607 chanvre indien Nutrition 0.000 claims description 54
- 239000011487 hemp Substances 0.000 claims description 54
- 239000000377 silicon dioxide Substances 0.000 claims description 40
- 229920000642 polymer Polymers 0.000 claims description 37
- -1 polytetrafluoroethylene Polymers 0.000 claims description 37
- 238000003756 stirring Methods 0.000 claims description 33
- 238000006243 chemical reaction Methods 0.000 claims description 29
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 28
- 239000004626 polylactic acid Substances 0.000 claims description 28
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 23
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 22
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 22
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 22
- 235000019441 ethanol Nutrition 0.000 claims description 21
- 238000005299 abrasion Methods 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 20
- 239000004743 Polypropylene Substances 0.000 claims description 19
- 239000012153 distilled water Substances 0.000 claims description 19
- 235000012239 silicon dioxide Nutrition 0.000 claims description 19
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 18
- 239000000155 melt Substances 0.000 claims description 18
- 239000011521 glass Substances 0.000 claims description 17
- 239000003513 alkali Substances 0.000 claims description 16
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 16
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 16
- 239000004020 conductor Substances 0.000 claims description 15
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 14
- 239000008098 formaldehyde solution Substances 0.000 claims description 14
- 238000009987 spinning Methods 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 12
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 11
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 11
- 239000001384 succinic acid Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- 229920001155 polypropylene Polymers 0.000 claims description 10
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000004593 Epoxy Substances 0.000 claims description 9
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 9
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 9
- 239000004642 Polyimide Substances 0.000 claims description 9
- 239000003963 antioxidant agent Substances 0.000 claims description 9
- 230000003078 antioxidant effect Effects 0.000 claims description 9
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000012188 paraffin wax Substances 0.000 claims description 9
- 229920002866 paraformaldehyde Polymers 0.000 claims description 9
- 229920001721 polyimide Polymers 0.000 claims description 9
- 239000001294 propane Substances 0.000 claims description 9
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 9
- 239000008158 vegetable oil Substances 0.000 claims description 9
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 8
- 239000003063 flame retardant Substances 0.000 claims description 8
- 238000009998 heat setting Methods 0.000 claims description 8
- 239000011574 phosphorus Substances 0.000 claims description 8
- 229910052698 phosphorus Inorganic materials 0.000 claims description 8
- 238000005245 sintering Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 230000018044 dehydration Effects 0.000 claims description 7
- 238000006297 dehydration reaction Methods 0.000 claims description 7
- 230000032050 esterification Effects 0.000 claims description 7
- 238000005886 esterification reaction Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000002386 leaching Methods 0.000 claims description 7
- 238000006068 polycondensation reaction Methods 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 7
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000002077 nanosphere Substances 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- 230000000379 polymerizing effect Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 claims description 2
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 2
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 2
- 238000003828 vacuum filtration Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 33
- 238000012360 testing method Methods 0.000 description 31
- 238000005452 bending Methods 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 229920002994 synthetic fiber Polymers 0.000 description 4
- 239000012209 synthetic fiber Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920002988 biodegradable polymer Polymers 0.000 description 1
- 239000004621 biodegradable polymer Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1895—Internal space filling-up means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2813—Protection against damage caused by electrical, chemical or water tree deterioration
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of wires and cables, in particular to a high-wear-resistance wire and cable and a preparation process thereof. A high wear resistant wire and cable comprising: the method comprises the following steps of wire, insulating fireproof layer, fiber filling layer, thermosetting polymer protective layer and high wear-resistant protective layer: preparation of degradable composite fiber filling materials, preparation of degradable thermosetting resin protective materials, preparation of modified fiber wear-resistant agents, preparation of high-wear-resistant protective layer materials and cable processing and molding. The degradable composite fiber filling material with high elasticity and toughness is used as the filling material of the cable, the degradable thermosetting resin protection material with good strength and toughness is used as the thermosetting polymer protection layer of the cable, and the high wear-resistant protection layer material with high wear resistance and fatigue resistance is used as the high wear-resistant protection layer, so that the wear resistance and the service life of the flexible cable can be effectively improved.
Description
Technical Field
The invention relates to the technical field of wires and cables, in particular to a high-wear-resistance wire and cable and a preparation process thereof.
Background
The wire and cable are important components in the fields of power transmission, signal transmission, motor appliances and the like. With the development of informatization and industrialization, the application of industrial automation and intelligent manufacturing is more and more widespread, and the demand of flexible cables is also increasing. The flexible cable is commonly used for flexible occasions such as a robot system, a production line, a robot arm and the like, and the robot system can send out instructions to control the robot to work through connection of the flexible cable. Although the flexible cable has good flexibility, corrosion resistance, tensile resistance and other performances, as the working activity of the robot is high in flexibility, and long-time mechanical repeated labor operation is needed, the abrasion and ageing efficiency of the flexible cable can be increased along with frequent working and use of the robot, and the cable needs to be manually maintained or replaced regularly, so that the wear resistance of the flexible cable needs to be further optimized, and the service life of the flexible cable is prolonged.
The general flexible cable mainly uses acrylic materials, polyurethane materials or silicone rubber materials as an outer protective sleeve, and although the materials have good softness, the common materials cannot meet the requirement of long-time mechanical repeated labor operation, and at present, although the prior art for improving the wear resistance of the electric wire and cable by adding synthetic fibers as reinforcements exists, the synthetic fibers are obtained through artificial synthesis, compared with the natural fibers, the synthetic fibers have limited sources of raw materials and larger raw material cost, so that the processing cost of the electric wire and cable can be increased to a certain extent, and the benefit is influenced.
Disclosure of Invention
In view of the above, the present invention provides a high wear-resistant wire cable for improving wear resistance of a flexible cable and a preparation process thereof, which aims at the defects of the prior art.
A high wear-resistant wire and cable is composed of the following parts: the wire, insulating fire-proof layer, fiber filling layer, thermosetting polymer protective layer and high wear-resistant protective layer;
the insulating fireproof layer comprises polyimide belts and polytetrafluoroethylene belts, wherein the thickness of the polyimide belts and the polytetrafluoroethylene belts is 0.06mm;
the raw materials of the fiber filling layer comprise a polymer and L-polylactic acid, wherein the mass ratio of the polymer to the L-polylactic acid is (1-2): 1, a step of;
the raw materials of the polymer comprise 1, 4-butanediol, terephthalic acid, succinic acid and tetrabutyl titanate, wherein the mass ratio of the 1, 4-butanediol to the terephthalic acid to the succinic acid to the tetrabutyl titanate is (80-100): (40-60): (10-20): (1-3);
the raw materials of the thermosetting polymer protective layer comprise 30 to 40 parts by mass of paraformaldehyde, 30 to 35 parts by mass of N-methylpyrrolidone, 7 to 10 parts by mass of distilled water and 8 to 10 parts by mass of 2,2' -bis [4- (4-aminophenoxyphenyl) ] propane;
the raw materials of the high wear-resistant protective layer comprise 100 to 150 parts by mass of polypropylene resin, 15 to 25 parts by mass of modified fiber wear-resistant agent, 10 to 20 parts by mass of phosphorus flame retardant, 5 to 10 parts by mass of epoxy vegetable oil, 3 to 7 parts by mass of PP grafted maleic anhydride, 1 to 3 parts by mass of paraffin wax and 0.3 to 0.5 part by mass of antioxidant DLTP;
The raw materials of the modified fiber wear-resistant agent comprise 10 to 15 parts by mass of alkalized hemp fiber, 5 to 8 parts by mass of silane coupling agent KH570, 1 to 3 parts by mass of treated nano-spherical silica and 100 to 120 parts by mass of ethanol solution with the volume fraction of 90 percent;
the alkalized hemp fiber is hemp fiber which is alkali treated by sodium hydroxide solution with mass fraction of 5%;
the treated nano spherical silica is obtained by mixing and reacting the nano spherical silica with absolute ethyl alcohol, a silane coupling agent KH570 and sodium stearate, wherein the raw materials comprise 30-60 parts by mass of nano spherical silica, 200-270 parts by mass of absolute ethyl alcohol, 30-50 parts by mass of silane coupling agent KH570 and 10-20 parts by mass of sodium stearate.
The preparation process of the high-wear-resistance wire and cable specifically comprises the following steps:
s1: the degradable composite fiber filling material is prepared,
heating 1, 4-butanediol, terephthalic acid, succinic acid and tetrabutyl titanate for esterification and dehydration, carrying out vacuum polycondensation reaction after the reaction is finished to obtain a polymer, respectively placing the polymer and the L-polylactic acid in a drying box for heating and drying, respectively melting the dried polymer and the dried L-polylactic acid into melt, and carrying out composite spinning, drafting and heat setting on the obtained two melt to obtain the degradable composite fiber filling material;
S2: the degradable thermosetting resin protective material is prepared,
mixing paraformaldehyde, N-methylpyrrolidone and distilled water, heating and stirring in a water bath to obtain a formaldehyde solution, uniformly stirring and mixing the formaldehyde solution and 2,2' -bis [4- (4-aminophenoxyphenyl) ] propane, pouring the mixture on a glass plate fixed with a polytetrafluoroethylene frame, and obtaining a degradable thermosetting resin protective material after heating, solidifying, standing and cooling at room temperature;
s3: the preparation of the modified fiber wear-resistant agent,
putting hemp fibers into a sodium hydroxide solution with the mass fraction of 5% for alkali treatment, then washing and drying the hemp fibers subjected to alkali treatment to obtain alkalized hemp fibers, slowly dripping absolute ethyl alcohol mixed with a silane coupling agent KH570 and sodium stearate into absolute ethyl alcohol mixed with nano spherical silicon dioxide, continuously stirring for reaction, performing vacuum filtration and washing to obtain treated nano spherical silicon dioxide, then mixing the alkalized hemp fibers, a silane coupling agent KH570, 90% ethanol and the treated nano spherical silicon dioxide, performing ultrasonic dispersion, filtering to obtain filter residues, leaching by using an ethanol solution, and drying to obtain a modified fiber wear-resistant agent;
S4: the preparation of the high wear-resistant protective layer material,
sequentially stirring polypropylene resin, a modified fiber wear-resistant agent, a phosphorus flame retardant, epoxy vegetable oil, PP grafted maleic anhydride, paraffin and an antioxidant DLTP at a high speed to obtain a premix, mixing and extruding the premix, and granulating and drying to obtain a high wear-resistant protective layer material;
s5: the cable is processed and formed into a shape,
after a copper wire is stranded into a wire, a layer of polyimide tape and polytetrafluoroethylene tape are sequentially wound on the surface of the wire, after the winding, an insulating fireproof layer is formed on the surface of the wire by high-temperature sintering, a cable core is obtained, degradable composite fiber filling materials are filled on the surface of the cable core, a fiber filling layer is obtained, 4 filled cable cores form a conductor, a degradable thermosetting resin protective material is extruded to the surface of the conductor, a thermosetting polymer protective layer is obtained, and then a high wear-resistant protective layer material is extruded to the surface of the thermosetting polymer protective layer of the conductor, so that the high wear-resistant protective layer is obtained, and the processing and the preparation of the flexible cable are completed.
Further, the step S1 of preparing the degradable composite fiber filling material specifically comprises the following steps:
s1.1: 1, 4-butanediol, terephthalic acid, succinic acid and tetrabutyl titanate are mixed according to the mass ratio of (80-100): (40-60): (10-20): (1-3) sequentially adding the materials into a reaction kettle, gradually heating to 150-250 ℃ to perform esterification and dehydration, gradually heating to 260-280 ℃ to perform vacuum polycondensation reaction after reacting for 2-4 hours, and polymerizing for 4-6 hours to obtain a polymer;
S1.2: placing the polymer in a drying box, drying at the temperature of 95-100 ℃, placing the L-polylactic acid in the drying box, and drying at the temperature of 80-90 ℃;
s1.3: respectively melt-extruding the dried polymer and the dried levorotatory polylactic acid by a single screw extruder, and then, metering the melt by a metering pump according to (1-2): 1, quantitatively conveying the melted polymer and the melted L-polylactic acid to a composite spinning component, converging the two melts at a spinneret plate of the composite spinning component, and then spraying the two melts through the same spinneret hole, and processing the two melts at winding speeds of 500-800 m/min and 1000-1500 m/min to prepare degradable composite fibers;
s1.4: and (3) drafting the degradable composite fiber by a multi-roller drafting machine, wherein the drafting multiple is 1.3-1.7, and finally performing heat setting at the temperature of 65-85 ℃ to obtain the degradable composite fiber filling material.
Further, the step S2 of preparing the degradable thermosetting resin protective material specifically includes the following steps:
s2.1: weighing 30-40 parts by mass of paraformaldehyde, 30-35 parts by mass of N-methylpyrrolidone and 7-10 parts by mass of distilled water, sequentially adding the mixture into a reaction bottle, and placing the reaction bottle into a water bath kettle with the temperature of 75-80 ℃ for magnetically stirring for 30-40 min to obtain formaldehyde solution;
S2.2: cooling the formaldehyde solution to 45-50 ℃, rapidly adding 8-10 parts by mass of 2,2' -bis [4- (4-aminophenoxy phenyl) ] propane into a reaction bottle, stirring and uniformly mixing, and reacting for 1-1.5 h at the temperature of 45-50 ℃ to obtain a prepolymerization solution;
s2.3: pouring the pre-polymerized solution in the bottle onto a glass plate which is horizontally placed and fixed with a polytetrafluoroethylene frame, placing the glass plate into a drying box, heating and curing for 1-2 h at 120-150 ℃, and then placing for 6-10 h at room temperature to obtain the degradable thermosetting resin protective material on the glass plate.
Further, the step S3 of preparing the modified fiber wear-resistant agent specifically comprises the following steps:
s3.1: placing 80-100 parts by mass of hemp fibers into 100-150 parts by mass of 5% sodium hydroxide solution, stirring for 30-40 min for alkali treatment, washing the hemp fibers subjected to alkali treatment for 2-3 times by using distilled water, and placing the washed hemp fibers into a drying box for drying at 75-85 ℃ to obtain alkalized hemp fibers;
s3.2: adding 30-60 parts by mass of nano spherical silicon dioxide into 100-120 parts by mass of absolute ethyl alcohol, performing ultrasonic dispersion for 20-30 min to obtain an intermediate liquid a, adding 30-50 parts by mass of a silane coupling agent KH570 and 10-20 parts by mass of sodium stearate into 100-150 parts by mass of absolute ethyl alcohol, performing ultrasonic dispersion for 20-30 min to obtain an intermediate liquid b;
S3.3: slowly adding the obtained intermediate solution b into the obtained intermediate solution a at 50-65 ℃, continuously stirring and reacting for 1.5-2 hours, vacuum filtering, sequentially washing with alcohol solution and distilled water for 1-2 times, and drying the washed solid matters in a drying box at 70-80 ℃ for 3-4 hours to obtain treated nanospheres of silicon dioxide;
s3.4: then adding 10-15 parts by mass of alkalized hemp fibers, 5-8 parts by mass of silane coupling agent KH570 and 100-110 parts by mass of ethanol solution with the volume fraction of 90% into a reactor, dispersing by ultrasonic waves for 30-40 min at 50-60 ℃, adding 1-3 parts by mass of treated nano spherical silica into the reactor, dispersing by ultrasonic waves for 40-60 min, filtering to obtain filter residues after the reaction is finished, leaching the filter residues with the ethanol solution for 3-5 times, and then putting the leached hemp fibers into a drying box for drying at 75-85 ℃ to obtain the modified fiber wear-resistant agent.
Further, the step S4 of preparing the high wear-resistant protective layer material specifically comprises the following steps:
s4.1: sequentially adding 100-150 parts by mass of polypropylene resin, 15-25 parts by mass of modified fiber wear-resistant agent, 10-20 parts by mass of phosphorus flame retardant, 5-10 parts by mass of epoxy vegetable oil, 3-7 parts by mass of PP grafted maleic anhydride, 1-3 parts by mass of paraffin wax and 0.3-0.5 part by mass of antioxidant DLTP into a high-speed mixer, and stirring at a high speed for 5-10 min at a rotating speed of 1500-2000 rpm/min to obtain premix;
S4.2: and (3) putting the premix into a double-screw extruder for mixing and extrusion, wherein the extrusion temperature is 170-180 ℃, granulating the extrudate by a granulator, and drying at 90-100 ℃ to obtain the high wear-resistant protective layer material.
Further, the water content of the polymer and the L-polylactic acid after the drying treatment in the step S1.2 is less than 30ppm.
Further, the average particle size of the nano spherical silica in the step S3.2 is 15-25 nm.
Further, the phosphorus flame retardant in step S4.1 is at least one of phosphate, tripolyphosphate, hypophosphite or nitrogen-phosphorus compound.
The invention has the following advantages:
1. according to the invention, the biodegradable polymer is prepared, and the polymer and the biodegradable left-handed polylactic acid are used as raw materials, and the composite spinning processing is performed in a parallel composite spinning mode, so that the composite fiber with high elastic toughness and biodegradability can be obtained, and after the composite fiber is subjected to drafting processing and heat setting, the obtained degradable composite fiber filling material has high elastic recovery rate, the elastic toughness is further improved, and the wear resistance and fatigue resistance of the flexible cable are improved, and the service life of the flexible cable is prolonged when the degradable composite fiber filling material is used as the filling material for the flexible cable.
2. According to the invention, the degradable thermosetting resin protective material is prepared and processed into the thermosetting polymer protective layer of the flexible cable, and the degradable thermosetting resin protective material has good strength, toughness, thermal performance and chemical stability, and has stronger degradation recovery capacity, so that the cable interior insulation protection function can be achieved, the recovery and reutilization of the waste cable can be improved, and the resource waste and the environmental pollution can be reduced.
3. In the invention, the hemp fiber is used as a natural plant fiber with wide raw material sources, soft texture and good strength and modulus, and the hemp fiber has toughness and wear resistance so as to replace the synthetic fiber and be used as a reinforcing body of the high wear-resistant protective layer of the flexible cable: after cellulose compounds in the hemp fibers are removed through alkalization treatment, nano spherical silica is grafted on the surfaces of the hemp fibers to obtain modified fiber wear-resistant agents, and the hemp fibers in the modified fiber wear-resistant agents are mutually cooperated with the nano spherical silica, so that the interfaces between the hemp fibers and the polypropylene resin matrix are better combined by utilizing the nano spherical silica as inorganic nano fillers through the characteristics of high toughness and wear resistance of the hemp fibers and the characteristics of good durability and dispersibility of the nano spherical silica, and the high wear-resistant protective layer material capable of improving the mechanical property and the wear resistance of the high wear-resistant protective layer of the flexible cable is formed, and the wear resistance and the service life of the flexible cable are improved.
Drawings
Fig. 1 is a flow chart of a process for manufacturing a high wear-resistant wire and cable according to an embodiment of the present invention.
Detailed Description
In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
A preparation process of a high-wear-resistance wire and cable is shown in fig. 1, and specifically comprises the following steps:
s1: the degradable composite fiber filling material is prepared,
s1.1: 1, 4-butanediol, terephthalic acid, succinic acid and tetrabutyl titanate are mixed according to the mass ratio of 100:60:20:3, sequentially putting the materials into a reaction kettle, gradually heating to 250 ℃ to perform esterification and dehydration, gradually heating to 280 ℃ to perform vacuum polycondensation reaction after reacting for 4 hours, and polymerizing for 6 hours to obtain a polymer;
s1.2: placing the polymer in a drying box, drying at 100 ℃, placing the levorotatory polylactic acid in the drying box, and drying at 90 ℃;
s1.3: respectively melt-extruding the dried polymer and the dried levorotatory polylactic acid by a single screw extruder, and then metering the polymer and the dried levorotatory polylactic acid by a metering pump according to the following ratio of 2:1, quantitatively conveying the melted polymer and the melted L-polylactic acid to a composite spinning component, converging the two melts at a spinneret plate of the composite spinning component, then spraying the two melts through the same spinneret hole, and processing the two melts at winding speeds of 800m/min and 1500m/min to prepare degradable composite fibers;
S1.4: drawing the degradable composite fiber by a multi-roller drawing machine, wherein the drawing multiple is 1.5, and finally performing heat setting at the temperature of 85 ℃ to obtain a degradable composite fiber filling material;
s2: the degradable thermosetting resin protective material is prepared,
s2.1: weighing 40 parts by mass of paraformaldehyde, 35 parts by mass of N-methylpyrrolidone and 10 parts by mass of distilled water, sequentially adding into a reaction bottle, putting the reaction bottle into a water bath kettle at 80 ℃, and magnetically stirring for 40min to obtain formaldehyde solution;
s2.2: cooling the formaldehyde solution to 50 ℃, rapidly adding 10 parts by mass of 2,2' -bis [4- (4-aminophenoxy phenyl) ] propane into a reaction bottle, stirring and uniformly mixing, and reacting for 1.5 hours at the temperature of 50 ℃ to obtain a prepolymer solution;
s2.3: pouring the pre-polymerized solution in the bottle onto a glass plate which is horizontally placed and fixed with a polytetrafluoroethylene frame, placing the glass plate into a drying box, heating and curing for 2 hours at 150 ℃, and then placing for 10 hours at room temperature to obtain a degradable thermosetting resin protective material on the glass plate;
s3: the preparation of the modified fiber wear-resistant agent,
s3.1: placing 100 parts by mass of hemp fibers into 150 parts by mass of sodium hydroxide solution with the mass fraction of 5%, stirring for 40min for alkali treatment, washing the hemp fibers subjected to alkali treatment with distilled water for 3 times, and placing the washed hemp fibers into a drying box for drying at 85 ℃ to obtain alkalized hemp fibers;
S3.2: adding 60 parts by mass of nano spherical silicon dioxide into 120 parts by mass of absolute ethyl alcohol, dispersing the nano spherical silicon dioxide with the average granularity of 20nm in an ultrasonic way for 20-30 min to obtain an intermediate liquid a, adding 50 parts by mass of a silane coupling agent KH570 and 20 parts by mass of sodium stearate into 150 parts by mass of absolute ethyl alcohol, and dispersing the nano spherical silicon dioxide with the ultrasonic way for 30min to obtain an intermediate liquid b;
s3.3: slowly adding the obtained intermediate solution b into the obtained intermediate solution a at 65 ℃, continuously stirring and reacting for 2 hours, vacuum filtering, sequentially washing with alcohol solution and distilled water for 2 times, and drying the washed solid matters in a drying box at 80 ℃ for 4 hours to obtain treated nanospheres silica;
s3.4: then adding 15 parts by mass of alkalized hemp fibers, 8 parts by mass of silane coupling agent KH570 and 100 parts by mass of ethanol solution with the volume fraction of 90% into a reactor, dispersing for 40min at 60 ℃ by ultrasonic waves, adding 3 parts by mass of treated nano spherical silica into the reactor, dispersing for 60min by ultrasonic waves, filtering to obtain filter residues after the reaction is finished, leaching the filter residues with the ethanol solution for 5 times, so as to remove the silane coupling agent KH570 adhered to the surfaces of the hemp fibers, and then putting the leached hemp fibers into a drying box for drying at 85 ℃ to obtain modified fiber wear-resistant agents;
S4: the preparation of the high wear-resistant protective layer material,
s4.1: sequentially adding 150 parts by mass of polypropylene resin, 25 parts by mass of modified fiber wear-resistant agent, 20 parts by mass of phosphate, 10 parts by mass of epoxy vegetable oil, 7 parts by mass of PP grafted maleic anhydride, 3 parts by mass of paraffin and 0.5 part by mass of antioxidant DLTP into a high-speed mixer, and stirring at a high speed for 10min at a rotating speed of 2000rpm/min to obtain a premix;
s4.2: mixing and extruding the premix in a double-screw extruder at 180 ℃, granulating the extrudate by a granulator, and drying at 100 ℃ to obtain a high-wear-resistance protective layer material;
s5: the cable is processed and prepared,
s5.1: putting 8 copper wires into a stranding machine for stranding to obtain a wire, sequentially wrapping a polyimide belt with the thickness of 0.06mm and a polytetrafluoroethylene belt with the thickness of 0.06mm on the surface of the wire, carrying out high-temperature sintering at the temperature of 500 ℃ after wrapping, wherein the sintering speed is 5m/min, so that an insulating fireproof layer is formed on the surface of the wire, and a cable core is obtained;
s5.2: filling a degradable composite fiber filling material on the surface of a cable core through a cable former to obtain a fiber filling layer, wherein the filling thickness is 0.12mm, forming a conductor by 4 filled cable cores, adding a degradable thermosetting resin protective material into a double-screw extruder, and extruding to the surface of the conductor to obtain a thermosetting polymer protective layer, wherein the extruding thickness is 0.4mm, and the inner diameter is 0.8mm;
S5.3: and then adding the high wear-resistant protective layer material into a double-screw extruder, extruding the high wear-resistant protective layer material onto the surface of the thermosetting polymer protective layer of the conductor to obtain the high wear-resistant protective layer, wherein the extrusion thickness is 0.8mm, and the inner diameter is 1.25mm, and thus the processing and the preparation of the flexible cable are completed.
Example 2
A preparation process of a high-wear-resistance wire and cable is shown in fig. 1, and specifically comprises the following steps:
s1: the degradable composite fiber filling material is prepared,
s1.1: 1, 4-butanediol, terephthalic acid, succinic acid and tetrabutyl titanate are mixed according to the mass ratio of 100:60:20:3, sequentially putting the materials into a reaction kettle, gradually heating to 150 ℃ to perform esterification and dehydration, gradually heating to 260 ℃ to perform vacuum polycondensation reaction after reacting for 2 hours, and polymerizing for 4 hours to obtain a polymer;
s1.2: placing the polymer in a drying box, drying at 95 ℃, placing the levorotatory polylactic acid in the drying box, and drying at 80 ℃;
s1.3: respectively melt-extruding the dried polymer and the dried levorotatory polylactic acid by a single screw extruder, and then metering the polymer and the dried levorotatory polylactic acid by a metering pump according to the following ratio of 2:1, quantitatively conveying the melted polymer and the melted L-polylactic acid to a composite spinning component, converging the two melts at a spinneret plate of the composite spinning component, then spraying the two melts through the same spinneret hole, and processing the two melts at winding speeds of 500m/min and 1000m/min to prepare degradable composite fibers;
S1.4: drawing the degradable composite fiber by a multi-roller drawing machine, wherein the drawing multiple is 1.3, and finally performing heat setting at 65 ℃ to obtain a degradable composite fiber filling material;
s2: the degradable thermosetting resin protective material is prepared,
s2.1: weighing 40 parts by mass of paraformaldehyde, 35 parts by mass of N-methylpyrrolidone and 10 parts by mass of distilled water, sequentially adding into a reaction bottle, putting the reaction bottle into a water bath kettle at 75 ℃, and magnetically stirring for 30min to obtain formaldehyde solution;
s2.2: cooling the formaldehyde solution to 45 ℃, rapidly adding 10 parts by mass of 2,2' -bis [4- (4-aminophenoxy phenyl) ] propane into a reaction bottle, stirring and uniformly mixing, and reacting for 1h at the temperature of 45 ℃ to obtain a pre-polymerization solution;
s2.3: pouring the pre-polymerized solution in the bottle onto a glass plate which is horizontally placed and fixed with a polytetrafluoroethylene frame, placing the glass plate into a drying box, heating and curing for 1h at 120 ℃, and then placing for 6h at room temperature to obtain a degradable thermosetting resin protective material on the glass plate;
s3: the preparation of the modified fiber wear-resistant agent,
s3.1: placing 100 parts by mass of hemp fibers into 150 parts by mass of sodium hydroxide solution with the mass fraction of 5%, stirring for 40min for alkali treatment, washing the hemp fibers subjected to alkali treatment with distilled water for 3 times, and placing the washed hemp fibers into a drying box for drying at 85 ℃ to obtain alkalized hemp fibers;
S3.2: adding 60 parts by mass of nano spherical silicon dioxide into 120 parts by mass of absolute ethyl alcohol, dispersing the nano spherical silicon dioxide with the average granularity of 20nm by ultrasonic waves for 30min to obtain an intermediate liquid a, adding 50 parts by mass of a silane coupling agent KH570 and 20 parts by mass of sodium stearate into 150 parts by mass of absolute ethyl alcohol, and dispersing the mixture by ultrasonic waves for 30min to obtain an intermediate liquid b;
s3.3: slowly adding the obtained intermediate solution b into the obtained intermediate solution a at 50 ℃, continuously stirring and reacting for 1.5 hours, vacuum filtering, sequentially washing with an alcohol solution and distilled water for 1 time, and drying the washed solid matters in a drying box at 70 ℃ for 3 hours to obtain treated nanospheres of silicon dioxide;
s3.4: then adding 15 parts by mass of alkalized hemp fibers, 8 parts by mass of silane coupling agent KH570 and 100 parts by mass of ethanol solution with the volume fraction of 90% into a reactor, dispersing for 30min at 50 ℃ by ultrasonic waves, adding 3 parts by mass of treated nano spherical silica into the reactor, dispersing for 40min by ultrasonic waves, filtering to obtain filter residues after the reaction is finished, leaching for 3 times by using the ethanol solution, so as to remove the silane coupling agent KH570 adhered to the surfaces of the hemp fibers, and then putting the leached hemp fibers into a drying box for drying at 75 ℃ to obtain modified fiber wear-resistant agents;
S4: the preparation of the high wear-resistant protective layer material,
s4.1: sequentially adding 150 parts by mass of polypropylene resin, 25 parts by mass of modified fiber wear-resistant agent, 20 parts by mass of phosphate, 10 parts by mass of epoxy vegetable oil, 7 parts by mass of PP grafted maleic anhydride, 3 parts by mass of paraffin and 0.5 part by mass of antioxidant DLTP into a high-speed mixer, and stirring at a high speed for 5min at a rotating speed of 1500rpm/min to obtain a premix;
s4.2: mixing and extruding the premix in a double-screw extruder at 170 ℃, granulating the extrudate by a granulator, and drying at 100 ℃ to obtain a high-wear-resistance protective layer material;
s5: the cable is processed and prepared,
s5.1: putting 8 copper wires into a stranding machine for stranding to obtain a wire, sequentially wrapping a polyimide belt with the thickness of 0.06mm and a polytetrafluoroethylene belt with the thickness of 0.06mm on the surface of the wire, carrying out high-temperature sintering at 300 ℃ after wrapping, wherein the sintering speed is 2m/min, so that an insulating fireproof layer is formed on the surface of the wire, and a cable core is obtained;
s5.2: filling a degradable composite fiber filling material on the surface of a cable core through a cable former to obtain a fiber filling layer, wherein the filling thickness is 0.12mm, forming a conductor by 4 filled cable cores, adding a degradable thermosetting resin protective material into a double-screw extruder, and extruding to the surface of the conductor to obtain a thermosetting polymer protective layer, wherein the extruding thickness is 0.4mm, and the inner diameter is 0.8mm;
S5.3: and then adding the high wear-resistant protective layer material into a double-screw extruder, extruding the high wear-resistant protective layer material onto the surface of the thermosetting polymer protective layer of the conductor to obtain the high wear-resistant protective layer, wherein the extrusion thickness is 0.8mm, and the inner diameter is 1.25mm, and thus the processing and the preparation of the flexible cable are completed.
Example 3
A preparation process of a high-wear-resistance wire and cable is shown in fig. 1, and specifically comprises the following steps:
s1: the degradable composite fiber filling material is prepared,
s1.1: 1, 4-butanediol, terephthalic acid, succinic acid and tetrabutyl titanate are mixed according to the mass ratio of 80:40:10:1, sequentially putting the materials into a reaction kettle, gradually heating to 250 ℃ to perform esterification and dehydration, gradually heating to 280 ℃ to perform vacuum polycondensation reaction after reacting for 4 hours, and polymerizing for 6 hours to obtain a polymer;
s1.2: placing the polymer in a drying box, drying at 100 ℃, placing the levorotatory polylactic acid in the drying box, and drying at 90 ℃;
s1.3: respectively melt-extruding the dried polymer and the dried levorotatory polylactic acid by a single screw extruder, and then metering the melt by a metering pump according to the following formula 1:1, quantitatively conveying the melted polymer and the melted L-polylactic acid to a composite spinning component, converging the two melts at a spinneret plate of the composite spinning component, then spraying the two melts through the same spinneret hole, and processing the two melts at winding speeds of 800m/min and 1500m/min to prepare degradable composite fibers;
S1.4: drawing the degradable composite fiber by a multi-roller drawing machine, wherein the drawing multiple is 1.5, and finally performing heat setting at the temperature of 85 ℃ to obtain a degradable composite fiber filling material;
s2: the degradable thermosetting resin protective material is prepared,
s2.1: weighing 30 parts by mass of paraformaldehyde, 30 parts by mass of N-methylpyrrolidone and 7 parts by mass of distilled water, sequentially adding into a reaction bottle, putting the reaction bottle into a water bath kettle at 80 ℃, and magnetically stirring for 40min to obtain formaldehyde solution;
s2.2: cooling the formaldehyde solution to 50 ℃, rapidly adding 8 parts by mass of 2,2' -bis [4- (4-aminophenoxy phenyl) ] propane into a reaction bottle, stirring and uniformly mixing, and reacting for 1.5 hours at the temperature of 50 ℃ to obtain a prepolymer solution;
s2.3: pouring the pre-polymerized solution in the bottle onto a glass plate which is horizontally placed and fixed with a polytetrafluoroethylene frame, placing the glass plate into a drying box, heating and curing for 2 hours at 150 ℃, and then placing for 10 hours at room temperature to obtain a degradable thermosetting resin protective material on the glass plate;
s3: the preparation of the modified fiber wear-resistant agent,
s3.1: putting 80 parts by mass of hemp fibers into 100 parts by mass of sodium hydroxide solution with the mass fraction of 5%, stirring for 30min for alkali treatment, washing the hemp fibers subjected to alkali treatment for 2 times by using distilled water, and putting the washed hemp fibers into a drying box for drying at 75 ℃ to obtain alkalized hemp fibers;
S3.2: adding 30 parts by mass of nano spherical silicon dioxide into 100 parts by mass of absolute ethyl alcohol, dispersing the nano spherical silicon dioxide with the average granularity of 20nm by ultrasonic waves for 20min to obtain an intermediate liquid a, adding 30 parts by mass of a silane coupling agent KH570 and 10 parts by mass of sodium stearate into 100 parts by mass of absolute ethyl alcohol, and dispersing the nano spherical silicon dioxide with the ultrasonic waves for 20min to obtain an intermediate liquid b;
s3.3: slowly adding the obtained intermediate solution b into the obtained intermediate solution a at 65 ℃, continuously stirring and reacting for 2 hours, vacuum filtering, sequentially washing with alcohol solution and distilled water for 2 times, and drying the washed solid matters in a drying box at 80 ℃ for 4 hours to obtain treated nanospheres silica;
s3.4: then, adding 10 parts by mass of alkalized hemp fibers, 5 parts by mass of silane coupling agent KH570 and 110 parts by mass of ethanol solution with the volume fraction of 90% into a reactor, dispersing for 40min at 60 ℃ by ultrasonic waves, adding 1 part by mass of treated nano spherical silica into the reactor, dispersing for 60min by ultrasonic waves, filtering to obtain filter residues after the reaction is finished, leaching the filter residues with the ethanol solution for 5 times, so as to remove the silane coupling agent KH570 adhered to the surfaces of the hemp fibers, and then putting the leached hemp fibers into a drying box to be dried at 85 ℃ to obtain modified fiber wear-resistant agents;
S4: the preparation of the high wear-resistant protective layer material,
s4.1: sequentially adding 100 parts by mass of polypropylene resin, 15 parts by mass of modified fiber wear-resistant agent, 10 parts by mass of phosphate, 5 parts by mass of epoxy vegetable oil, 33 parts by mass of PP grafted maleic anhydride, 1 part by mass of paraffin and 0.3 part by mass of antioxidant DLTP into a high-speed mixer, and stirring at a high speed for 10min at a rotating speed of 2000rpm/min to obtain a premix;
s4.2: mixing and extruding the premix in a double-screw extruder at 180 ℃, granulating the extrudate by a granulator, and drying at 100 ℃ to obtain a high-wear-resistance protective layer material;
s5: the cable is processed and prepared,
s5.1: putting 8 copper wires into a stranding machine for stranding to obtain a wire, sequentially wrapping a polyimide belt with the thickness of 0.06mm and a polytetrafluoroethylene belt with the thickness of 0.06mm on the surface of the wire, carrying out high-temperature sintering at the temperature of 500 ℃ after wrapping, wherein the sintering speed is 5m/min, so that an insulating fireproof layer is formed on the surface of the wire, and a cable core is obtained;
s5.2: filling a degradable composite fiber filling material on the surface of a cable core through a cable former to obtain a fiber filling layer, wherein the filling thickness is 0.12mm, forming a conductor by 4 filled cable cores, adding a degradable thermosetting resin protective material into a double-screw extruder, and extruding to the surface of the conductor to obtain a thermosetting polymer protective layer, wherein the extruding thickness is 0.4mm, and the inner diameter is 0.8mm;
S5.3: and then adding the high wear-resistant protective layer material into a double-screw extruder, extruding the high wear-resistant protective layer material onto the surface of the thermosetting polymer protective layer of the conductor to obtain the high wear-resistant protective layer, wherein the extrusion thickness is 0.8mm, and the inner diameter is 1.25mm, and thus the processing and the preparation of the flexible cable are completed.
Comparative example 1
In comparison with example 1, comparative example 1 was different in that the degradable composite fiber filler material preparation of step S1 and the filling operation of the degradable composite fiber filler material in step S5.2 were removed, and the remaining steps were unchanged, a flexible cable was prepared, which was denoted as comparative example 1.
Comparative example 2
In comparison with example 1, comparative example 2 was different in that the degradable thermosetting resin protective material preparation of step S2 and the filling operation of the degradable thermosetting resin protective material in S5.2 were removed, and the remaining steps were unchanged, a flexible cable was prepared, which was denoted as comparative example 2.
Comparative example 3
Comparative example 3 was different from example 1 in that the modified fiber abrasion resistant agent preparation of step S3 and the addition use of the modified fiber abrasion resistant agent in step S4.1 were removed, and the remaining steps were unchanged, and a flexible cable was prepared, which was denoted as comparative example 3.
Comparative example 4
The TRVV high flexibility drag chain cable (4 cores) purchased from shanghai-identified tang specialty wire and cable limited was designated as comparative example 4, with the cable diameter in comparative example 4 being the same as the flex cable made in example 1.
3 flexible cables prepared in examples 1 to 3 and comparative examples 1 to 4 were each selected as a test sample, which was tested for tensile strength and elongation at break according to the standard of GB/T2951-2008, respectively, and the average value of the tensile strength and elongation at break of each group was calculated. The results are shown in Table 1.
TABLE 1 tensile Strength and elongation at break test results
| Group of | Tensile Strength (MPa) | Elongation at break (%) |
| Example 1 | 28.4 | 532 |
| Example 2 | 26.9 | 515 |
| Example 3 | 27.2 | 527 |
| Comparative example 1 | 21.7 | 473 |
| Comparative example 2 | 22.5 | 479 |
| Comparative example 3 | 22．0 | 468 |
| Comparative example 4 | 24.3 | 493 |
As can be seen from table 1, after the tensile strength and elongation at break test, the tensile strength and elongation at break results of the test samples of examples 1-3 are better than those of the test samples of comparative examples 1-4, and the test result of the test sample of comparative example 1 is the worst, which shows that, in the preparation of the flexible cable, the fiber filling layer, the thermosetting polymer protective layer and the high wear-resistant protective layer all play a role in improving the mechanical properties of the flexible cable, and help to improve the flexibility of the flexible cable, wherein the formation of the fiber filling layer plays the largest role in improving the flexibility.
3 flexible cables prepared in examples 1-3 and comparative examples 1-4 were selected as test samples, the test samples were subjected to bending test by a bending machine, the number of times of bending fracture of each group of test samples was recorded, and the average value of the number of times of bending fracture of each group of test samples was calculated. The results are shown in Table 2.
TABLE 2 bending fracture test results
| Group of | Number of bending breaks (ten thousand times) |
| Example 1 | 37.1 |
| Example 2 | 36.2 |
| Example 3 | 36.8 |
| Comparative example 1 | 30.3 |
| Comparative example 2 | 35.5 |
| Comparative example 3 | 34.6 |
| Comparative example 4 | 30.8 |
As can be seen from table 2, after the bending fracture test, the bending fracture times of the test samples of examples 1-3 are all greater than 36 ten thousand times, wherein the test result of example 1 is optimal, and the bending fracture times of the test samples of comparative example 1 and comparative example 4 are all less than 31 ten thousand times, which indicates that, compared with the common flexible cable, the degradable composite fiber filling material is used as the fiber filling layer of the flexible cable, so that the fatigue resistance of the flexible cable can be effectively improved, the service life of the flexible cable is prolonged, the abrasion and aging efficiency of the flexible cable is reduced, and the formation of the thermosetting polymer protective layer and the high abrasion protective layer can also improve the fatigue resistance and the abrasion fracture effect of the flexible cable to a certain extent, but the fatigue resistance and the abrasion fracture resistance of the fiber filling layer are more remarkable.
3 flexible cables prepared in examples 1-3 and comparative examples 1-4 are selected as test samples, the test samples are respectively subjected to wear resistance test according to the GB/T5013-2008 standard, the flexible cables of each group are respectively subjected to 20000 single-pass movements, the lengths of the insulation exposed portions of the cables of each group of test samples are recorded, and the average value of the lengths of the insulation exposed portions of each group of test samples is calculated. The results are shown in Table 3.
Table 3 abrasion resistance test results
| Group of | Insulation exposure length (mm) |
| Example 1 | 1.1 |
| Example 2 | 1.6 |
| Example 3 | 1.3 |
| Comparative example 1 | 2.4 |
| Comparative example 2 | 3.2 |
| Comparative example 3 | 5.1 |
| Comparative example 4 | 3.6 |
As can be seen from table 3, after the abrasion resistance test, the insulation exposure length test results of the test samples of examples 1 to 3 are better than the test results obtained after the test samples of comparative examples 1 to 4, and the test data obtained after the test sample of comparative example 3 is tested is the largest, and the test results are the worst, which shows that the addition of the modified fiber abrasion-resistant agent in the formation of the high abrasion-resistant protective layer can significantly improve the abrasion resistance of the flexible cable and reduce the damage after the abrasion of the flexible cable, and in addition, the formation of the fiber filling layer and the thermosetting polymer protective layer can also improve the abrasion resistance and abrasion condition of the flexible cable to some extent, but the abrasion resistance of the high abrasion-resistant protective layer is more remarkable.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims. Parts of the specification not described in detail belong to the prior art known to those skilled in the art.
Claims (9)
1. The high wear-resistant wire and cable is characterized by comprising the following parts: the wire, insulating fire-proof layer, fiber filling layer, thermosetting polymer protective layer and high wear-resistant protective layer;
the insulating fireproof layer comprises polyimide belts and polytetrafluoroethylene belts, wherein the thickness of the polyimide belts and the polytetrafluoroethylene belts is 0.06mm;
the raw materials of the fiber filling layer comprise a polymer and L-polylactic acid, wherein the mass ratio of the polymer to the L-polylactic acid is (1-2): 1, a step of;
the raw materials of the polymer comprise 1, 4-butanediol, terephthalic acid, succinic acid and tetrabutyl titanate, wherein the mass ratio of the 1, 4-butanediol to the terephthalic acid to the succinic acid to the tetrabutyl titanate is (80-100): (40-60): (10-20): (1-3);
the raw materials of the thermosetting polymer protective layer comprise 30 to 40 parts by mass of paraformaldehyde, 30 to 35 parts by mass of N-methylpyrrolidone, 7 to 10 parts by mass of distilled water and 8 to 10 parts by mass of 2,2' -bis [4- (4-aminophenoxyphenyl) ] propane;
the raw materials of the high wear-resistant protective layer comprise 100 to 150 parts by mass of polypropylene resin, 15 to 25 parts by mass of modified fiber wear-resistant agent, 10 to 20 parts by mass of phosphorus flame retardant, 5 to 10 parts by mass of epoxy vegetable oil, 3 to 7 parts by mass of PP grafted maleic anhydride, 1 to 3 parts by mass of paraffin wax and 0.3 to 0.5 part by mass of antioxidant DLTP;
The raw materials of the modified fiber wear-resistant agent comprise 10 to 15 parts by mass of alkalized hemp fiber, 5 to 8 parts by mass of silane coupling agent KH570, 1 to 3 parts by mass of treated nano-spherical silica and 100 to 120 parts by mass of ethanol solution with the volume fraction of 90 percent;
the alkalized hemp fiber is hemp fiber which is alkali treated by sodium hydroxide solution with mass fraction of 5%;
the treated nano spherical silica is obtained by mixing and reacting the nano spherical silica with absolute ethyl alcohol, a silane coupling agent KH570 and sodium stearate, wherein the raw materials comprise 30-60 parts by mass of nano spherical silica, 200-270 parts by mass of absolute ethyl alcohol, 30-50 parts by mass of silane coupling agent KH570 and 10-20 parts by mass of sodium stearate.
2. A process for preparing a high abrasion resistant wire and cable according to claim 1, comprising the steps of:
s1: the degradable composite fiber filling material is prepared,
heating 1, 4-butanediol, terephthalic acid, succinic acid and tetrabutyl titanate for esterification and dehydration, carrying out vacuum polycondensation reaction after the reaction is finished to obtain a polymer, respectively placing the polymer and the L-polylactic acid in a drying box for heating and drying, respectively melting the dried polymer and the dried L-polylactic acid into melt, and carrying out composite spinning, drafting and heat setting on the obtained two melt to obtain the degradable composite fiber filling material;
S2: the degradable thermosetting resin protective material is prepared,
mixing paraformaldehyde, N-methylpyrrolidone and distilled water, heating and stirring in a water bath to obtain a formaldehyde solution, uniformly stirring and mixing the formaldehyde solution and 2,2' -bis [4- (4-aminophenoxyphenyl) ] propane, pouring the mixture on a glass plate fixed with a polytetrafluoroethylene frame, and obtaining a degradable thermosetting resin protective material after heating, solidifying, standing and cooling at room temperature;
s3: the preparation of the modified fiber wear-resistant agent,
putting hemp fibers into a sodium hydroxide solution with the mass fraction of 5% for alkali treatment, then washing and drying the hemp fibers subjected to alkali treatment to obtain alkalized hemp fibers, slowly dripping absolute ethyl alcohol mixed with a silane coupling agent KH570 and sodium stearate into absolute ethyl alcohol mixed with nano spherical silicon dioxide, continuously stirring for reaction, performing vacuum filtration and washing to obtain treated nano spherical silicon dioxide, then mixing the alkalized hemp fibers, a silane coupling agent KH570, 90% ethanol and the treated nano spherical silicon dioxide, performing ultrasonic dispersion, filtering to obtain filter residues, leaching by using an ethanol solution, and drying to obtain a modified fiber wear-resistant agent;
S4: the preparation of the high wear-resistant protective layer material,
sequentially stirring polypropylene resin, a modified fiber wear-resistant agent, a phosphorus flame retardant, epoxy vegetable oil, PP grafted maleic anhydride, paraffin and an antioxidant DLTP at a high speed to obtain a premix, mixing and extruding the premix, and granulating and drying to obtain a high wear-resistant protective layer material;
s5: the cable is processed and formed into a shape,
after a copper wire is stranded into a wire, a layer of polyimide tape and polytetrafluoroethylene tape are sequentially wound on the surface of the wire, after the winding, an insulating fireproof layer is formed on the surface of the wire by high-temperature sintering, a cable core is obtained, degradable composite fiber filling materials are filled on the surface of the cable core, a fiber filling layer is obtained, 4 filled cable cores form a conductor, a degradable thermosetting resin protective material is extruded to the surface of the conductor, a thermosetting polymer protective layer is obtained, and then a high wear-resistant protective layer material is extruded to the surface of the thermosetting polymer protective layer of the conductor, so that the high wear-resistant protective layer is obtained, and the processing and the preparation of the flexible cable are completed.
3. The process for preparing the high-wear-resistance wire and cable according to claim 2, wherein the step S1 of preparing the degradable composite fiber filling material comprises the following steps:
S1.1: 1, 4-butanediol, terephthalic acid, succinic acid and tetrabutyl titanate are mixed according to the mass ratio of (80-100): (40-60): (10-20): (1-3) sequentially adding the materials into a reaction kettle, gradually heating to 150-250 ℃ to perform esterification and dehydration, gradually heating to 260-280 ℃ to perform vacuum polycondensation reaction after reacting for 2-4 hours, and polymerizing for 4-6 hours to obtain a polymer;
s1.2: placing the polymer in a drying box, drying at the temperature of 95-100 ℃, placing the L-polylactic acid in the drying box, and drying at the temperature of 80-90 ℃;
s1.3: respectively melt-extruding the dried polymer and the dried levorotatory polylactic acid by a single screw extruder, and then, metering the melt by a metering pump according to (1-2): 1, quantitatively conveying the melted polymer and the melted L-polylactic acid to a composite spinning component, converging the two melts at a spinneret plate of the composite spinning component, and then spraying the two melts through the same spinneret hole, and processing the two melts at winding speeds of 500-800 m/min and 1000-1500 m/min to prepare degradable composite fibers;
s1.4: and (3) drafting the degradable composite fiber by a multi-roller drafting machine, wherein the drafting multiple is 1.3-1.7, and finally performing heat setting at the temperature of 65-85 ℃ to obtain the degradable composite fiber filling material.
4. The process for preparing the high-wear-resistance wire and cable according to claim 3, wherein the step S2 of preparing the degradable thermosetting resin protective material comprises the following steps:
s2.1: weighing 30-40 parts by mass of paraformaldehyde, 30-35 parts by mass of N-methylpyrrolidone and 7-10 parts by mass of distilled water, sequentially adding the mixture into a reaction bottle, and placing the reaction bottle into a water bath kettle with the temperature of 75-80 ℃ for magnetically stirring for 30-40 min to obtain formaldehyde solution;
s2.2: cooling the formaldehyde solution to 45-50 ℃, rapidly adding 8-10 parts by mass of 2,2' -bis [4- (4-aminophenoxy phenyl) ] propane into a reaction bottle, stirring and uniformly mixing, and reacting for 1-1.5 h at the temperature of 45-50 ℃ to obtain a prepolymerization solution;
s2.3: pouring the pre-polymerized solution in the bottle onto a glass plate which is horizontally placed and fixed with a polytetrafluoroethylene frame, placing the glass plate into a drying box, heating and curing for 1-2 h at 120-150 ℃, and then placing for 6-10 h at room temperature to obtain the degradable thermosetting resin protective material on the glass plate.
5. The preparation process of the high-wear-resistance wire and cable according to claim 4, wherein the preparation of the modified fiber wear-resistant agent in the step S3 specifically comprises the following steps:
S3.1: placing 80-100 parts by mass of hemp fibers into 100-150 parts by mass of 5% sodium hydroxide solution, stirring for 30-40 min for alkali treatment, washing the hemp fibers subjected to alkali treatment for 2-3 times by using distilled water, and placing the washed hemp fibers into a drying box for drying at 75-85 ℃ to obtain alkalized hemp fibers;
s3.2: adding 30-60 parts by mass of nano spherical silicon dioxide into 100-120 parts by mass of absolute ethyl alcohol, performing ultrasonic dispersion for 20-30 min to obtain an intermediate liquid a, adding 30-50 parts by mass of a silane coupling agent KH570 and 10-20 parts by mass of sodium stearate into 100-150 parts by mass of absolute ethyl alcohol, performing ultrasonic dispersion for 20-30 min to obtain an intermediate liquid b;
s3.3: slowly adding the obtained intermediate solution b into the obtained intermediate solution a at 50-65 ℃, continuously stirring and reacting for 1.5-2 hours, vacuum filtering, sequentially washing with alcohol solution and distilled water for 1-2 times, and drying the washed solid matters in a drying box at 70-80 ℃ for 3-4 hours to obtain treated nanospheres of silicon dioxide;
s3.4: then adding 10-15 parts by mass of alkalized hemp fibers, 5-8 parts by mass of silane coupling agent KH570 and 100-110 parts by mass of ethanol solution with the volume fraction of 90% into a reactor, dispersing by ultrasonic waves for 30-40 min at 50-60 ℃, adding 1-3 parts by mass of treated nano spherical silica into the reactor, dispersing by ultrasonic waves for 40-60 min, filtering to obtain filter residues after the reaction is finished, leaching the filter residues with the ethanol solution for 3-5 times, and then putting the leached hemp fibers into a drying box for drying at 75-85 ℃ to obtain the modified fiber wear-resistant agent.
6. The process for preparing the high-wear-resistance wire and cable according to claim 5, wherein the step S4 of preparing the high-wear-resistance protective layer material comprises the following steps:
s4.1: sequentially adding 100-150 parts by mass of polypropylene resin, 15-25 parts by mass of modified fiber wear-resistant agent, 10-20 parts by mass of phosphorus flame retardant, 5-10 parts by mass of epoxy vegetable oil, 3-7 parts by mass of PP grafted maleic anhydride, 1-3 parts by mass of paraffin wax and 0.3-0.5 part by mass of antioxidant DLTP into a high-speed mixer, and stirring at a high speed for 5-10 min at a rotating speed of 1500-2000 rpm/min to obtain premix;
s4.2: and (3) putting the premix into a double-screw extruder for mixing and extrusion, wherein the extrusion temperature is 170-180 ℃, granulating the extrudate by a granulator, and drying at 90-100 ℃ to obtain the high wear-resistant protective layer material.
7. The high-wear-resistance wire and cable and the preparation process thereof according to claim 3, wherein the moisture content of the polymer and the L-polylactic acid after the drying treatment in the step S1.2 is less than 30ppm.
8. The process for preparing high abrasion resistant electric wire and cable according to claim 5, wherein the average particle size of the nano spherical silica in step S3.2 is 15-25 nm.
9. The process for preparing a highly abrasion-resistant wire and cable according to claim 6, wherein the phosphorus flame retardant in step S4.1 is at least one of phosphate, tripolyphosphate, hypophosphite or nitrogen-phosphorus compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410302623.8A CN117894511B (en) | 2024-03-18 | 2024-03-18 | High-wear-resistance wire and cable and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410302623.8A CN117894511B (en) | 2024-03-18 | 2024-03-18 | High-wear-resistance wire and cable and preparation process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117894511A true CN117894511A (en) | 2024-04-16 |
| CN117894511B CN117894511B (en) | 2024-05-10 |
Family
ID=90649362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410302623.8A Active CN117894511B (en) | 2024-03-18 | 2024-03-18 | High-wear-resistance wire and cable and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117894511B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8805041D0 (en) * | 1987-03-12 | 1988-03-30 | Bashay A D | Reinforced polymer composites |
| US5008310A (en) * | 1989-05-15 | 1991-04-16 | Beshay Alphons D | Polymer composites based cellulose-V |
| JP2008222790A (en) * | 2007-03-09 | 2008-09-25 | Toray Ind Inc | Resin composition and molding comprising the same |
| CN101694022A (en) * | 2009-09-17 | 2010-04-14 | 吴江鹰翔万信化纤有限公司 | Bicomponent fiber of polylactic acid and polyethylene butanediol succinate |
| CN102560709A (en) * | 2012-01-04 | 2012-07-11 | 江苏省纺织研究所有限公司 | Production method of bio-degradable heat-viscose bi-component filament fiber |
| CN105968748A (en) * | 2016-03-01 | 2016-09-28 | 安徽猛牛彩印包装有限公司 | Flame-retardant polylactic acid and starch compound fully-degradable plastic film and manufacturing method thereof |
| CN112300542A (en) * | 2019-07-29 | 2021-02-02 | 罗惠民 | Nanoscale plant fiber modified biodegradable composite material and preparation method and application thereof |
| CN113136638A (en) * | 2021-06-08 | 2021-07-20 | 四川大学 | Biodegradable parallel composite elastic fiber and preparation method thereof |
| CN114540983A (en) * | 2022-03-22 | 2022-05-27 | 中国纺织科学研究院有限公司 | Low-cost biodegradable composite fiber and preparation method and application thereof |
| US20230043739A1 (en) * | 2021-08-06 | 2023-02-09 | Changzhou Institute Of Technology | Method for Preparing Silane Coupling Agent/Silica/Plant Fiber Composite |
| CN115725153A (en) * | 2022-11-25 | 2023-03-03 | 华南理工大学 | Continuous fiber reinforced poly-hexahydrotriazine 3D printing composite material |
| CN117683296A (en) * | 2023-12-11 | 2024-03-12 | 大唐（赤峰）新能源有限公司 | Wear-resistant and corrosion-resistant material for cable |
-
2024
- 2024-03-18 CN CN202410302623.8A patent/CN117894511B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8805041D0 (en) * | 1987-03-12 | 1988-03-30 | Bashay A D | Reinforced polymer composites |
| US5008310A (en) * | 1989-05-15 | 1991-04-16 | Beshay Alphons D | Polymer composites based cellulose-V |
| JP2008222790A (en) * | 2007-03-09 | 2008-09-25 | Toray Ind Inc | Resin composition and molding comprising the same |
| CN101694022A (en) * | 2009-09-17 | 2010-04-14 | 吴江鹰翔万信化纤有限公司 | Bicomponent fiber of polylactic acid and polyethylene butanediol succinate |
| CN102560709A (en) * | 2012-01-04 | 2012-07-11 | 江苏省纺织研究所有限公司 | Production method of bio-degradable heat-viscose bi-component filament fiber |
| CN105968748A (en) * | 2016-03-01 | 2016-09-28 | 安徽猛牛彩印包装有限公司 | Flame-retardant polylactic acid and starch compound fully-degradable plastic film and manufacturing method thereof |
| CN112300542A (en) * | 2019-07-29 | 2021-02-02 | 罗惠民 | Nanoscale plant fiber modified biodegradable composite material and preparation method and application thereof |
| CN113136638A (en) * | 2021-06-08 | 2021-07-20 | 四川大学 | Biodegradable parallel composite elastic fiber and preparation method thereof |
| US20230043739A1 (en) * | 2021-08-06 | 2023-02-09 | Changzhou Institute Of Technology | Method for Preparing Silane Coupling Agent/Silica/Plant Fiber Composite |
| CN114540983A (en) * | 2022-03-22 | 2022-05-27 | 中国纺织科学研究院有限公司 | Low-cost biodegradable composite fiber and preparation method and application thereof |
| CN115725153A (en) * | 2022-11-25 | 2023-03-03 | 华南理工大学 | Continuous fiber reinforced poly-hexahydrotriazine 3D printing composite material |
| CN117683296A (en) * | 2023-12-11 | 2024-03-12 | 大唐（赤峰）新能源有限公司 | Wear-resistant and corrosion-resistant material for cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117894511B (en) | 2024-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101161726A (en) | Highly-conductive polyphenylene sulfide composite material and method for making same | |
| CN103059528B (en) | A kind of polycaprolactone composite material and preparation method thereof | |
| CN101307173A (en) | Glass fibre reinforced halogen-free fire retardant PBT composite material and method for preparing same | |
| CN109265990A (en) | High glass fire-retarding reinforced polyamide composition | |
| CN111499892A (en) | Preparation method of glass fiber reinforced high-strength heat-resistant amino molding compound | |
| CN117894511B (en) | High-wear-resistance wire and cable and preparation process thereof | |
| CN108587154B (en) | Modified PA66 composite material and preparation method thereof | |
| CN101134839B (en) | Flame-proof glass fibre reinforced polycarbonate material and method for making same | |
| CN112920555B (en) | TPEE composite material suitable for high-speed extrusion and preparation method thereof | |
| CN109979663B (en) | Corrosion-resistant flame-retardant wire and cable and preparation method thereof | |
| CN113265717B (en) | Manufacturing method of antibacterial polyester fiber | |
| CN101205639A (en) | Method for producing skin-core structure flame-retardant fiber by melt direct spinning | |
| CN112071481B (en) | Flame-retardant and fire-resistant cable and preparation method thereof | |
| CN111393771B (en) | PVC flame-retardant plastic particle for wires and cables and preparation process thereof | |
| CN109836813B (en) | Nylon 6 composite material and preparation method thereof | |
| CN113637274B (en) | Water-soluble cutting fluid-resistant bending-resistant deflection-resistant modified polyvinyl chloride cable material and preparation method thereof | |
| CN112375349A (en) | Wear-resistant hydrolysis-resistant long glass fiber reinforced PBT/SPS composite material and preparation method thereof | |
| CN112321995A (en) | Low-temperature-resistant hydrolysis-resistant glass fiber reinforced PBT (polybutylene terephthalate) and preparation method thereof | |
| CN112961417B (en) | High-flexibility fireproof cable and preparation method thereof | |
| CN118292268B (en) | Indoor basalt fiber cloth | |
| CN115109363B (en) | High-toughness plastic master batch for optical cable | |
| CN115926418B (en) | Chemical-resistant and high-temperature-resistant basalt fiber composite material | |
| CN112266489B (en) | Environment-friendly energy-saving PBT film production process | |
| CN114507400A (en) | Modified glass fiber reinforced polypropylene composition and preparation method thereof | |
| CN106751561A (en) | Specific insulation PTT composites high and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |