CN105504500B - A kind of creep resistance PP composite material and preparation method thereof - Google Patents
A kind of creep resistance PP composite material and preparation method thereof Download PDFInfo
- Publication number
- CN105504500B CN105504500B CN201511020018.9A CN201511020018A CN105504500B CN 105504500 B CN105504500 B CN 105504500B CN 201511020018 A CN201511020018 A CN 201511020018A CN 105504500 B CN105504500 B CN 105504500B
- Authority
- CN
- China
- Prior art keywords
- zone
- percent
- creep
- polypropylene
- master batch
- 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.)
- Active
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- -1 polypropylene Polymers 0.000 claims abstract description 38
- 239000004743 Polypropylene Substances 0.000 claims abstract description 35
- 229920001155 polypropylene Polymers 0.000 claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000012745 toughening agent Substances 0.000 claims abstract description 8
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 20
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 20
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 238000007580 dry-mixing Methods 0.000 claims description 11
- 238000005303 weighing Methods 0.000 claims description 11
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 8
- 239000000155 melt Substances 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 5
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000011256 inorganic filler Substances 0.000 abstract description 7
- 229910003475 inorganic filler Inorganic materials 0.000 abstract description 7
- 239000000654 additive Substances 0.000 abstract description 4
- 150000002978 peroxides Chemical class 0.000 abstract description 4
- 239000003381 stabilizer Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 229920005629 polypropylene homopolymer Polymers 0.000 abstract description 2
- 230000035484 reaction time Effects 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 description 18
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 10
- 238000001035 drying Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 7
- 239000003963 antioxidant agent Substances 0.000 description 6
- 230000003078 antioxidant effect Effects 0.000 description 6
- 238000005469 granulation Methods 0.000 description 6
- 230000003179 granulation Effects 0.000 description 6
- 238000009472 formulation Methods 0.000 description 4
- 239000002667 nucleating agent Substances 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000006057 Non-nutritive feed additive Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical group OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- VNQNXQYZMPJLQX-UHFFFAOYSA-N 1,3,5-tris[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]-1,3,5-triazinane-2,4,6-trione Chemical group CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CN2C(N(CC=3C=C(C(O)=C(C=3)C(C)(C)C)C(C)(C)C)C(=O)N(CC=3C=C(C(O)=C(C=3)C(C)(C)C)C(C)(C)C)C2=O)=O)=C1 VNQNXQYZMPJLQX-UHFFFAOYSA-N 0.000 description 1
- PZRWFKGUFWPFID-UHFFFAOYSA-N 3,9-dioctadecoxy-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane Chemical group C1OP(OCCCCCCCCCCCCCCCCCC)OCC21COP(OCCCCCCCCCCCCCCCCCC)OC2 PZRWFKGUFWPFID-UHFFFAOYSA-N 0.000 description 1
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 description 1
- VKJLYEDTHCTCOH-UHFFFAOYSA-N 3-(3-octadecoxy-3-oxopropyl)sulfanylpropanoic acid Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(O)=O VKJLYEDTHCTCOH-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 238000012668 chain scission Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 150000007970 thio esters Chemical class 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a kind of creep resistance PP composite materials and preparation method thereof, and wherein creep resistance PP composite material is made of by weight percentage following raw material：Homo-polypropylene 0 65%, co-polypropylene 30 95%, toughener 0 20%, inorganic filler 0 40%, cooling masterbatch 0.3 2%, stabilizer 0.2 2%, other additives 0 5%.It is an advantage of the invention that：1, keep modified polypropylene material lightly crosslinked using cooling masterbatch, improve the creep resistance of material, while improving the mobility of material；2, using all from main spout feeding manner, strengthening shearing, improve the dispersion effect of toughener, cooling masterbatch, inorganic filler etc., while extending the reaction time of peroxide, further improve the performance of composite material.
Description
Technical Field
The invention relates to a polypropylene composite material, in particular to a creep-resistant polypropylene composite material and a preparation method of the composite material, belonging to the field of polymer modification and processing.
Background
Polypropylene has good processing performance, physical and chemical properties, extremely low density and relatively low price, is widely applied to household appliances and automobile materials and is the universal thermoplastic plastic with the highest growth speed at present. However, polypropylene has poor creep resistance due to high molecular chain flexibility. Since the automobile parts made of polypropylene are assembled with metal, and the linear expansion coefficient of the automobile parts is greatly different from that of the metal, a plastic part subjected to certain pressure due to dimensional deviation can occur during temperature change. And the polypropylene with poor creep resistance can generate creep deformation so as to generate permanent deformation under pressure, so that the assembly gap is enlarged, and even part of functional parts can be assembled loosely to cause safety problems.
Peroxide is a common polypropylene chain scission and polyethylene crosslinking initiator, and is usually prepared into master batches (cooling master batches) for use. The tertiary hydrocarbon of the molecular chain of the polypropylene is easy to generate chain transfer and chain breakage when being oxidized, and the molecular chain of the ethylene is easy to generate crosslinking.
In the polypropylene material for the automobile, as the toughness requirement is higher, more toughening agents such as polyethylene, ethylene-octene copolymer and the like are added, so that the molecular chains of the material are slightly crosslinked due to the addition of the cooling master batch, and the creep resistance of the polypropylene material can be obviously improved.
The Chinese patent application CN201110284432.6 discloses a creep-resistant polypropylene composition and a preparation method thereof, wherein the composition is matched with a nucleating agent and a high-length-diameter ratio filler to ensure that the material has excellent creep resistance.
The Chinese invention patent CN201110422525.0 discloses a low-warpage and creep-resistant polypropylene composition and a preparation method thereof, wherein a compatilizer and a nucleating agent are used to improve the creep resistance of polypropylene and improve the warpage performance.
the Chinese invention patent CN201310738308.1 discloses a creep-resistant thermo-oxidative aging-resistant polypropylene composition and a preparation method thereof, and the creep and thermo-oxidative aging-resistant performance of a polypropylene material is improved by using a metal oxide and a β nucleating agent.
the Chinese invention patent CN201410805899.4 discloses a creep-resistant and low-temperature impact-resistant polypropylene composition and a preparation method thereof, and the creep resistance of a polypropylene material is improved by β nucleating agent.
Disclosure of Invention
The invention aims to develop a creep-resistant modified polypropylene composite material so as to widen a creep-resistant modification method of polypropylene.
Another object of the present invention is to provide a method for preparing such a polypropylene composite.
The purpose of the invention can be realized by the following technical scheme:
a creep-resistant polypropylene composite material is composed of the following raw materials in percentage by weight:
wherein,
the homopolymerized propylene has a melt flow rate (230 ℃ C.. times.2.16 kg) of 0.5-60g/10min, and preferably has a melt flow rate (230 ℃ C.. times.2.16 kg) of 3-40g/10 min.
The copolymerized propylene has a melt flow rate (230 ℃ C.. times.2.16 kg) of 0.5-60g/10min, and preferably has a melt flow rate (230 ℃ C.. times.2.16 kg) of 3-40g/10 min.
The toughening agent is any suitable ethylene-octene copolymer (POE), and the melt flow rate (190 ℃ multiplied by 2.16kg) is 0.5-50g/10 min.
The inorganic filler is one or more of talcum powder, mica, wollastonite and the like, and the average grain diameter of the inorganic filler is 1-20 mu m; talc powder having an average particle diameter of 1 to 10 μm is preferable.
The cooling master batch is peroxide master batch of a polypropylene carrier. The polypropylene carrier cooling master batch with the content of di-tert-butyl peroxide of 1 percent is preferred.
the stabilizer comprises a primary antioxidant and a secondary antioxidant, wherein the primary antioxidant is a hindered phenol or thioester antioxidant and comprises but is not limited to one or more of 3114 (chemical name is 1,3, 5-tri (3, 5-di-tert-butyl-4-hydroxybenzyl) -1,3, 5-triazine-2, 4,6[1H,3H,5H ] trione), 1010 (chemical name is tetra [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester) and DSTP (chemical name is thiodipropionate stearyl ester), and the secondary antioxidant is a phosphite or ester antioxidant and comprises but is not limited to one or two of 618 (chemical name is distearyl pentaerythritol diphosphite) and 168 (chemical name is tri (2, 4-di-tert-butyl) phosphite).
Such other additives include combinations of one or more of colorants, processing aids, and lubricants as deemed desirable by those skilled in the art.
The preparation method of the creep-resistant polypropylene composite material comprises the following steps:
1) weighing the raw materials according to the weight ratio;
2) dry-mixing homopolymerized propylene, copolymerized propylene, a toughening agent, an inorganic filler, a cooling master batch, a stabilizing agent and other additives in a high-speed mixer for 3-15 minutes, adding the mixed raw materials into a double-screw extruder, and cooling and granulating after melt extrusion;
wherein the temperature in the screw cylinder is as follows: the first zone is 180-220 ℃, the second zone is 180-220 ℃, the third zone is 180-220 ℃, the fourth zone is 180-220 ℃, the head is 180-220 ℃, and the rotating speed of the double-screw extruder is 100-1000 r/min.
The invention has the advantages that:
1. the modified polypropylene material is lightly crosslinked by using the cooling master batch, so that the creep resistance of the material is improved, and meanwhile, the fluidity of the material is improved;
2. the mode of feeding from the main feeding port is adopted, so that shearing is enhanced, the dispersing effects of the toughening agent, the cooling master batch, the inorganic filler and the like are improved, the reaction time of peroxide is prolonged, and the performance of the composite material is further improved.
Detailed Description
The present invention will be described in further detail with reference to examples. The scope of the invention is set forth in the claims and is not limited by these examples.
In the composite formulations of the examples and comparative examples, the homopolypropylene used was one having a melt flow rate (230 ℃ C. times.2.16 kg) of 3 to 40g/10 min.
The copolymerization propylene used is copolymerization propylene with the melt flow rate (230 ℃ C.. times.2.16 kg) of 3-40g/10 min.
The toughening agent is ethylene-octene copolymer (POE) or Dow POE 8150.
The inorganic filler is sheet-structured talcum powder with average particle size of 1-10 μm.
The cooling master batch is the cooling master batch with the content of di-tert-butyl peroxide of 1 percent.
the stabilizers used were Negonox DSTP (chemical name stearyl thiodipropionate) from ICE, British, Irganox1010 (chemical name pentaerythritol tetrakis [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ]) from Ciba, and Igrafos168 (chemical name tris (2, 4-di-tert-butylphenyl) phosphite) from Ciba.
Other additives used are combinations of one or more of colorants, processing aids, lubricants as deemed desirable by one skilled in the art.
Example 1
Weighing 94.2% of copolymerized propylene, 5% of POE 8150, 0.3% of cooling master batch, 0.1% of Irganox1010, 0.1% of Igrafos168 and 0.3% of Negonox DSTP according to weight percentage, dry-mixing for 5 minutes in a high-speed mixer, adding into a double-screw extruder, and carrying out melt extrusion granulation, wherein the temperature in a screw cylinder is as follows: the first zone is 180 ℃, the second zone is 205 ℃, the third zone is 220 ℃, the fourth zone is 210 ℃, the head is 210 ℃, and the rotating speed of the double-screw extruder is 500 r/min. Drying the particles, and performing injection molding on an injection molding machine to prepare a sample.
Example 2
Weighing 93.5 percent of copolymerized propylene, 5 percent of POE 8150, 1 percent of cooling master batch, 0.1 percent of Irganox1010, 0.1 percent of Igrafos168 and 0.3 percent of Negonox DSTP according to the weight percentage, dry-mixing for 5 minutes in a high-speed mixer, adding into a double-screw extruder, melting, extruding and granulating, wherein the temperature in a screw cylinder is as follows: the first zone is 180 ℃, the second zone is 205 ℃, the third zone is 220 ℃, the fourth zone is 210 ℃, the head is 210 ℃, and the rotating speed of the double-screw extruder is 500 r/min. Drying the particles, and performing injection molding on an injection molding machine to prepare a sample.
Example 3
Weighing 92.5 percent of copolymerized propylene, 5 percent of POE 8150, 2 percent of cooling master batch, 0.1 percent of Irganox1010, 0.1 percent of Igrafos168 and 0.3 percent of Negonox DSTP according to the weight percentage, dry-mixing for 5 minutes in a high-speed mixer, adding into a double-screw extruder, melting, extruding and granulating, wherein the temperature in a screw cylinder is as follows: the first zone is 180 ℃, the second zone is 205 ℃, the third zone is 220 ℃, the fourth zone is 210 ℃, the head is 210 ℃, and the rotating speed of the double-screw extruder is 500 r/min. Drying the particles, and performing injection molding on an injection molding machine to prepare a sample.
Example 4
Weighing 73.5% of copolymerized propylene, 5% of POE 8150, 20% of talcum powder, 1% of cooling master batch, 0.1% of Irganox1010, 0.1% of Igrafos168 and 0.3% of Negonox DSTP according to weight percentage, dry-mixing for 5 minutes in a high-speed mixer, adding into a double-screw extruder, and carrying out melt extrusion granulation, wherein the temperature in a screw cylinder is as follows: the first zone is 180 ℃, the second zone is 205 ℃, the third zone is 220 ℃, the fourth zone is 210 ℃, the head is 210 ℃, and the rotating speed of the double-screw extruder is 500 r/min. Drying the particles, and performing injection molding on an injection molding machine to prepare a sample.
Example 5
Weighing 58.5% of copolymerized propylene, 20% of POE 8150, 20% of talcum powder, 1% of cooling master batch, 0.1% of Irganox1010, 0.1% of Igrafos168 and 0.3% of Negonox DSTP according to weight percentage, dry-mixing for 5 minutes in a high-speed mixer, adding into a double-screw extruder, and carrying out melt extrusion granulation, wherein the temperature in a screw cylinder is as follows: the first zone is 180 ℃, the second zone is 205 ℃, the third zone is 220 ℃, the fourth zone is 210 ℃, the head is 210 ℃, and the rotating speed of the double-screw extruder is 500 r/min. Drying the particles, and performing injection molding on an injection molding machine to prepare a sample.
Example 6
Weighing 43.5% of homopolymerized propylene, 30% of copolymerized propylene, 5% of POE 8150, 20% of talcum powder, 1% of cooling master batch, 0.1% of Irganox1010, 0.1% of Igrafos168 and 0.3% of Negonox DSTP according to weight percentage, dry-mixing for 5 minutes in a high-speed mixer, and adding into a double-screw extruder for melt extrusion granulation, wherein the temperature in a screw cylinder is as follows: the first zone is 180 ℃, the second zone is 205 ℃, the third zone is 220 ℃, the fourth zone is 210 ℃, the head is 210 ℃, and the rotating speed of the double-screw extruder is 500 r/min. Drying the particles, and performing injection molding on an injection molding machine to prepare a sample.
Comparative example 1
Weighing 94.5 percent of copolymerized propylene, 5 percent of POE 8150, 0.1 percent of Irganox1010, 0.1 percent of Igrafos168 and 0.3 percent of Negonox DSTP according to weight percentage, dry mixing for 5 minutes in a high-speed mixer, adding into a double-screw extruder, melting, extruding and granulating, wherein the temperature in a screw cylinder is as follows: the first zone is 180 ℃, the second zone is 205 ℃, the third zone is 220 ℃, the fourth zone is 210 ℃, the head is 210 ℃, and the rotating speed of the double-screw extruder is 500 r/min. Drying the particles, and performing injection molding on an injection molding machine to prepare a sample.
Comparative example 2
Weighing 74.5 percent of copolymerized propylene, 5 percent of POE 8150, 20 percent of talcum powder, 0.1 percent of Irganox1010, 0.1 percent of Igrafos168 and 0.3 percent of Negonox DSTP according to the weight percentage, dry-mixing for 5 minutes in a high-speed mixer, adding into a double-screw extruder for melt extrusion granulation, wherein the temperature in a screw cylinder is as follows: the first zone is 180 ℃, the second zone is 205 ℃, the third zone is 220 ℃, the fourth zone is 210 ℃, the head is 210 ℃, and the rotating speed of the double-screw extruder is 500 r/min. Drying the particles, and performing injection molding on an injection molding machine to prepare a sample.
Comparative example 3
Weighing 44.5 percent of homopolymerized propylene, 30 percent of copolymerized propylene, 5 percent of POE 8150, 20 percent of talcum powder, 0.1 percent of Irganox1010, 0.1 percent of Igrafos168 and 0.3 percent of Negonox DSTP according to weight percentage, dry-mixing for 5 minutes in a high-speed mixer, adding into a double-screw extruder, and carrying out melt extrusion granulation, wherein the temperature in a screw cylinder is as follows: the first zone is 180 ℃, the second zone is 205 ℃, the third zone is 220 ℃, the fourth zone is 210 ℃, the head is 210 ℃, and the rotating speed of the double-screw extruder is 500 r/min. Drying the particles, and performing injection molding on an injection molding machine to prepare a sample.
Performance evaluation method:
testing creep resistance of samples: the test specimens were 120X 10X 4mm in size, the test temperature was 23 ℃ and the stress was 30MPa, and the strain (%) -in the outermost layer of the specimen after 48 hours was recorded in accordance with GB6095-85
The formulations and performance test results for the examples and comparative examples are shown in the following tables:
TABLE 1 Material formulations (wt.%) for examples 1-6 and comparative examples 1-3
As can be seen from the comparison between the comparative examples 1-2 and the examples 1-6, the formulation with the addition of the cooling masterbatch can greatly improve the creep resistance because the slight crosslinking of the molecular chain is promoted, and the slippage of the molecular chain after being stressed is reduced. The influence on other properties is comprehensively considered, and the addition amount of 1 percent is most practical.
Claims (5)
1. A creep-resistant polypropylene composite characterized by: the material consists of the following raw materials in percentage by weight: 73.5 percent of copolymerized propylene; 81505% of a toughening agent; 20% of talcum powder; 1% of cooling master batch; 10100.1 percent; 1680.1 percent; 0.3 percent of DSTP; the cooling master batch is a polypropylene carrier cooling master batch with the content of di-tert-butyl peroxide of 1%.
2. The creep-resistant polypropylene composite of claim 1, wherein: the copolymerized propylene has the melt flow rate of 0.5-60g/10min, and the test condition is 230 ℃ and 2.16 kg.
3. The creep-resistant polypropylene composite of claim 2, wherein: copolymerized propylene with melt flow rate of 3-40g/10min, the test condition is 230 ℃ and 2.16 kg.
4. The creep-resistant polypropylene composite of claim 1, wherein: the average particle size of the talcum powder is 1-10 mu m.
5. A process for the preparation of a creep-resistant polypropylene composite as claimed in any one of claims 1 to 4, characterized in that: the method comprises the following steps:
1) weighing the raw materials according to the weight ratio;
2) putting the raw materials into a high-speed mixer for dry mixing for 3-15 minutes, adding the mixed raw materials into a double-screw extruder, and cooling and granulating after melt extrusion; wherein the temperature in the screw cylinder is as follows: the first zone is 180-220 ℃, the second zone is 180-220 ℃, the third zone is 180-220 ℃, the fourth zone is 180-220 ℃, the head is 180-220 ℃, and the rotating speed of the double-screw extruder is 100-1000 r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020018.9A CN105504500B (en) | 2015-12-30 | 2015-12-30 | A kind of creep resistance PP composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020018.9A CN105504500B (en) | 2015-12-30 | 2015-12-30 | A kind of creep resistance PP composite material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105504500A CN105504500A (en) | 2016-04-20 |
| CN105504500B true CN105504500B (en) | 2018-09-14 |
Family
ID=55712828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511020018.9A Active CN105504500B (en) | 2015-12-30 | 2015-12-30 | A kind of creep resistance PP composite material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105504500B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110982167B (en) * | 2019-12-06 | 2022-07-12 | 万华化学（宁波）有限公司 | Creep-resistant polypropylene composite material with interpenetrating network structure and preparation method thereof |
| CN111607162B (en) * | 2020-06-30 | 2023-06-23 | 上海中塑管业有限公司 | Marine plastic pipe and preparation method thereof |
| CN112280192A (en) * | 2020-10-21 | 2021-01-29 | 重庆会通科技有限公司 | Polypropylene composite material with low linear expansion coefficient and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532694A (en) * | 2010-12-23 | 2012-07-04 | 上海日之升新技术发展有限公司 | Composite material with high melt index and preparation method thereof |
-
2015
- 2015-12-30 CN CN201511020018.9A patent/CN105504500B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532694A (en) * | 2010-12-23 | 2012-07-04 | 上海日之升新技术发展有限公司 | Composite material with high melt index and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105504500A (en) | 2016-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105602179A (en) | High-rigidity, low-shrinkage and good-appearance polypropylene composite material and preparation method thereof | |
| CN106243480B (en) | EVA (ethylene-vinyl acetate) type wear-resistant flame-retardant elastomer material and preparation method thereof | |
| CN106633398A (en) | Anti-floating fire, heat-resistant and anti-aging polypropylene material and a preparation method thereof | |
| CN107434913B (en) | Halogen-free flame-retardant anti-UV strong-bonding PA encapsulating material and preparation method thereof | |
| WO2018218647A1 (en) | Thermoplastic composite, method of making thermoplastic composite, and injection-molded product | |
| CN112552582B (en) | Anti-tiger stripe and high-heat-resistance automobile instrument board material and preparation method and application thereof | |
| CN102417561A (en) | Ultrahigh-fluidity propylene-based elastomer graft copolymer and preparation method thereof | |
| CN105385088B (en) | A kind of polypropene composition and preparation method thereof | |
| CN105504500B (en) | A kind of creep resistance PP composite material and preparation method thereof | |
| CN110746701A (en) | Polypropylene composition and preparation method thereof | |
| CN112143103A (en) | Cage-type silsesquioxane modified polypropylene composite material and preparation method thereof | |
| CN112708192B (en) | Polypropylene/thermoplastic elastomer blend and preparation method and application thereof | |
| CN112194871A (en) | Preparation method of PMMA/ABS composition and application of PMMA/ABS composition | |
| CN111925594A (en) | Graphene reinforced polypropylene composite material, preparation method thereof and heat conduction product | |
| CN108250588B (en) | Polypropylene composite material with low embrittlement temperature and high elongation at break and preparation method thereof | |
| CN106398085A (en) | Scratching-resistant halogen-free flame-retardant TPE injection molding material and preparation method thereof | |
| CN113754955A (en) | High-elongation-at-break and scratch-resistant polypropylene composite material and preparation method thereof | |
| CN104086940A (en) | Halogen-free flame retardant TPE (thermoplastic polyurethane elastomer) injection molding material and preparation method thereof | |
| CN109265972B (en) | Matte thermoplastic polyurethane elastomer with easy processing and high modulus and preparation method thereof | |
| CN109517373B (en) | PA6/AES composite material and preparation method thereof | |
| CN111393784A (en) | Easily-dispersible high-interface-bonding-strength polyolefin filling master batch and preparation method thereof | |
| CN109486047A (en) | A kind of ABS composite material and preparation method thereof | |
| CN112480646B (en) | Kaolin reinforced polyphenyl ether composition and preparation method and application thereof | |
| CN110079046B (en) | Easily-dispersible composite carrier master batch and preparation method thereof | |
| CN109206897B (en) | Transparent particle toughening agent for nylon toughening and cold resistance and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 201703 12th Floor, Lane 1, 2855, Shanghai Qingping Highway, Zhaoxiang Town, Qingpu District, Shanghai Patentee after: Shanghai Pret Compound Material Co., Ltd. Address before: 200081 2nd Floor, 421 Lane, Siping Road, Hongkou District, Shanghai Patentee before: Shanghai Pret Compound Material Co., Ltd. |