CN104072982A - High-temperature resistant nylon and preparation method thereof - Google Patents
High-temperature resistant nylon and preparation method thereof Download PDFInfo
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- CN104072982A CN104072982A CN201410340788.0A CN201410340788A CN104072982A CN 104072982 A CN104072982 A CN 104072982A CN 201410340788 A CN201410340788 A CN 201410340788A CN 104072982 A CN104072982 A CN 104072982A
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- 229920001778 nylon Polymers 0.000 title claims abstract description 55
- 239000004677 Nylon Substances 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 38
- 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 abstract description 27
- 239000010445 mica Substances 0.000 claims abstract description 27
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 27
- 239000007822 coupling agent Substances 0.000 claims abstract description 24
- 239000004698 Polyethylene Substances 0.000 claims abstract description 18
- -1 polyethylene Polymers 0.000 claims abstract description 18
- 229920000573 polyethylene Polymers 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 239000010456 wollastonite Substances 0.000 claims abstract description 15
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 150000001408 amides Chemical class 0.000 claims description 18
- 238000005303 weighing Methods 0.000 claims description 5
- 238000005453 pelletization Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000004952 Polyamide Substances 0.000 abstract description 6
- 229920002647 polyamide Polymers 0.000 abstract description 6
- 229920003023 plastic Polymers 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 4
- 238000005452 bending Methods 0.000 abstract 1
- 238000005469 granulation Methods 0.000 abstract 1
- 230000003179 granulation Effects 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 238000007670 refining Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 239000000835 fiber Substances 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000006057 Non-nutritive feed additive Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- 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
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- 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
-
- 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
- B29C2948/92009—Measured parameter
- B29C2948/92266—Mechanical properties
-
- 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
- B29C2948/92323—Location or phase of measurement
- B29C2948/92485—Start-up, shut-down or parameter setting phase; Emergency shut-down; Material change; Test or laboratory equipment or studies
-
- 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
-
- 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
- B29C2948/92761—Mechanical properties
-
- 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
- B29C2948/92819—Location or phase of control
- B29C2948/9298—Start-up, shut-down or parameter setting phase; Emergency shut-down; Material change; Test or laboratory equipment or studies
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a high-temperature resistant nylon and a preparation method thereof. The high-temperature resistant nylon comprises the following raw materials in parts by weight: 60-80 parts of wollastonite, 0-25 parts of talcum powder, 0-20 parts of mica powder, 0.5-4 parts of a coupling agent, 1-4 parts of polyethylene wax and 20-40 parts of polyamide. The preparation method for the high-temperature resistant nylon comprises the following specific steps: the wollastonite, the talcum powder and the mica powders are mixed in proportion; after the wollastonite, the talcum powder and the mica powder are mixed, drying is carried out, so as to obtain a mixed inorganic powder; after the inorganic powder is heated to 80-120 DEC G, the coupling agent is added for mixing; then, the mixture of the inorganic powder and the coupling agent is placed into a high-speed mixer for stirring; a compound is obtained; the compound is proportionally added to the polyamide; the compound and the polyamide are placed into a low-speed stirring machine for mixing; then, the mixture of the compound and the polyamide is transported to a double-screw extruder for mixed refining; granulation is extruded; the high-temperature resistant nylon is prepared. The high-temperature resistant nylon has the advantages of high heat distortion temperature, good bending stress (rigidity) and the like; the shrinkage percentage, buckling deformation and hygroscopicity of nylon and plastic products can be effectively lowered; moreover, the manufacturing technique is simple and the cost is low.
Description
Technical field
The present invention relates to nylon and preparation field thereof, a kind of high temperature resistant nylon and preparation method thereof is provided especially.
Background technology
Polymeric amide, be commonly called as nylon, PA write a Chinese character in simplified form in English, PA is widely used in the component of manufacturing production machinery, chemistry and the aspect such as electric, as bearing, gear, roll shaft, impeller, seal washer, tubing etc., the various component that use more and more PA to manufacture at aspects such as automobile, railway, sports equipment, household electrical appliances.
PA has good mechanical property, tensile strength, compressive strength, shock strength and wear resisting property.Because the heat-drawn wire of PA is generally 80 ℃ of left and right, therefore, how to improve the application of temperature of PA, become the hot technology that plastics industry is paid close attention to.At present, a kind of method is to adopt glass fibre to strengthen, and by add segment glass fiber in PA, can obviously improve its heat-drawn wire and physicals, but because glass fibre is soft filamentary material, its resistance to impact shock, rigidity, sanitary index are all subject to certain restrictions.Another kind method is to adopt resistant to elevated temperatures material alternately to inlay into different goods from PA, improve the thermotolerance of PA, for example: when PA production of articles, adopt tackiness agent by common nylon and contain the materials such as resistant to elevated temperatures epoxy resin, quartz, glass fibre and be wrapped in respectively skin, although it can improve its temperature tolerance, but production technique is comparatively complicated, and production cost is also higher.
Therefore, research and develop a kind of novel high temperature resistant nylon and preparation method, become people's problem demanding prompt solution.
summary of the invention
The object of the invention is at least solve poor, the easy moisture absorption of resistance to elevated temperatures that nylon exists in the past, cause buckling deformation and complex manufacturing, the problems such as production cost height.
The technical scheme that one aspect of the present invention provides is: a kind of high temperature resistant nylon, it is characterized in that, and by weight, comprising: 20 ~ 40 parts of 1 ~ 4 part of 60 ~ 80 parts of wollastonite, 0 ~ 25 part of talcum powder, mica powder 0 ~ 20,0.5 ~ 4 part of coupling agent, polyethylene wax and polymeric amide.
Preferably, according to weighing scale, comprise 25 ~ 35 parts of 2 ~ 3 parts of 65 ~ 75 parts of wollastonites, 10 ~ 25 parts of talcum powder, 5 ~ 20 parts of mica powders, 1 ~ 2.5 part of coupling agent, polyethylene wax and polymeric amide.
Further preferably, according to weighing scale, comprise 0 part of 70 parts of wollastonites, 20 parts of talcum powder, 10 parts of mica powders, 1.5 parts of coupling agents, 3 parts of polyethylene waxs and kymene.
Further preferably, the granularity of described talcum powder and mica powder is 800 ~ 1250 orders.
The technical scheme that the present invention also provides is on the other hand: a kind of method of preparing high temperature resistant nylon, it is characterized in that, and concrete steps are:
I) wollastonite, talcum powder and mica powder are mixed in proportion, after mixing, be dried to obtain mixing inorganic powder;
Ii) above-mentioned inorganic powder is heated to, after 80 ~ 120 ℃, add coupling agent to mix, then puts into homogenizer and stir, obtain mixture;
Iii) said mixture is added after polymeric amide in proportion, put into low-speed mixer and mix, then be transported to and in twin screw extruder, carry out mixingly, extruding pelletization, makes finished product.
Preferably, in described twin screw extruder, mixing temperature is 180 ~ 250 ℃.
High temperature resistant nylon provided by the invention, by polynary complex ore filamentary material and the polymeric amide that wollastonite, talcum powder and mica powder are formed, carry out blending and modifying, can obviously improve nylon heat-drawn wire, improve flexural strength, effectively reduce shrinking percentage, buckling deformation and the water absorbability of nylon products, auxiliary material by coupling agent and polyethylene wax adds simultaneously, and the performance of nylon is further improved; In addition, the method for preparing high temperature resistant nylon provided by the invention, has technique simple, advantage with low cost.
Embodiment
Below in conjunction with specific embodiment, the present invention is further explained, but is not limited to protection scope of the present invention.
In order to solve nylon in the past, there is poor, the easy moisture absorption of resistance to elevated temperatures, cause the problems such as buckling deformation, the invention provides a kind of high temperature resistant nylon, by weight, it comprises: 20 ~ 40 parts of 1 ~ 4 part of 60 ~ 80 parts of wollastonite, 0 ~ 25 part of talcum powder, mica powder 0 ~ 20,0.5 ~ 4 part of coupling agent, polyethylene wax and polymeric amide.
This high temperature resistant nylon carries out blending and modifying by polynary complex ore filamentary material and the polymeric amide that wollastonite, talcum powder and mica powder are formed, can obviously improve nylon heat-drawn wire, improve flexural strength, effectively reduce shrinking percentage, buckling deformation and the water absorbability of nylon products.
Wherein, 1) wollastonite has unique acicular structure, the mechanical property of modification of nylon is significantly improved, especially elastic strength and Young's modulus.Simultaneously as excellent natural fiber, except its strengthening action, wollastonite also can significantly improve the heat-drawn wire of nylon, obviously improve the dimensional stability of nylon products, effectively reduce shrinking percentage and the goods buckling deformation of material, give processing stability and the production processability of nylon excellence, improve the outward appearance of nylon products, without surface floating fiber phenomenon, make goods be imbued with natural gloss.Can also avoid the shortcoming that causes flexural strength and modulus in flexure to decline because of goods water suction simultaneously.2) talcum powder can improve rigidity, thermotolerance and the high creep properties of nylon.3) the suffered stress of the sheet structure of mica powder and fibrous wollastonite interaction dispersible materials, the tensile strength of raising nylon, resistance to impact shock, Young's modulus, thermostability, antifatigue creep properties and resistance to abrasion.4) coupling agent, in nylon compounding, for improving a kind of plastics additive of synthetic resins and inorganic filler or strongthener interface performance.Claim again surface-modifying agent.It can reduce the viscosity of molten synthetic resin in plastic working process, improves the dispersity of weighting agent to improve processing characteristics, and then makes goods obtain good surface quality and machinery, heat and electrical property.5) polyethylene wax can increase gloss and the processing characteristics of product.
Above-mentioned high temperature resistant nylon is composition proportion more preferably, according to weighing scale, comprises 25 ~ 35 parts of 2 ~ 3 parts of 65 ~ 75 parts of wollastonites, 10 ~ 25 parts of talcum powder, 5 ~ 20 parts of mica powders, 1 ~ 2.5 part of coupling agent, polyethylene wax and polymeric amide; Be preferably the most 0 part of 70 parts of wollastonites, 20 parts of talcum powder, 10 parts of mica powders, 1.5 parts of coupling agents, 3 parts of polyethylene waxs and kymene.When the granularity of talcum powder and mica powder is 800 ~ 1250 order, the nylon product appearance making is more fine and smooth, gloss.
The preparation method of the concrete preparation method of above-mentioned high temperature resistant nylon and following embodiment 1 ~ 6 all carries out according to following step, is specially:
I) wollastonite, talcum powder and mica powder are mixed in proportion, after mixing, be dried to obtain mixing inorganic powder;
Ii) above-mentioned inorganic powder is heated to, after 80 ~ 120 ℃, add coupling agent to mix, then puts into homogenizer and stir, obtain mixture;
Iii) said mixture is added after polymeric amide in proportion, put into low-speed mixer and mix, then be transported to and in twin screw extruder, carry out mixingly, extruding pelletization, makes finished product.
In twin screw extruder, mixing temperature is preferably 220 ~ 250 ℃.
Preparation method's step I) in, first wollastonite, talcum powder and mica powder are mixed, can improve the degree of uniformity of its mixing, make the properties of nylons that makes even.
Step I i) in, by adding, put into homogenizer after coupling agent and stir, carry out surface modification treatment, make inorganic powder and the resin can be better compatible.
Step I ii) in, will after mixture surface treatment, add again polymeric amide, can improve the addition of inorganic powder, improve resin performance.
Wherein, homogenizer is relative stirring velocity with low-speed mixer, but the two does not have clear and definite rate request.
Embodiment 1
A high temperature resistant nylon, comprises 0 part of 70 parts of wollastonites, 20 parts of talcum powder, 10 parts of mica powders, 1.5 parts of coupling agents, 3 parts of polyethylene waxs and kymene by weight, is prepared according to the method described above.
Embodiment 2
A high temperature resistant nylon, comprises 25 parts of 65 parts of wollastonites, 25 parts of talcum powder, 5 parts of mica powders, 1 part of coupling agent, 3 parts of polyethylene waxs and polymeric amide by weight, is prepared according to the method described above.
Embodiment 3
A high temperature resistant nylon, comprises 5 parts of 75 parts of wollastonites, 10 parts of talcum powder, 20 parts of mica powders, 2.5 parts of coupling agents, 2 parts of polyethylene waxs and kymenes by weight, is prepared according to the method described above.
Embodiment 4
A high temperature resistant nylon, comprises 20 parts of 60 parts of wollastonites, 25 parts of talcum powder, 0.5 part of coupling agent, 4 parts of polyethylene waxs and polymeric amide by weight, is prepared according to the method described above.
Embodiment 5
A high temperature resistant nylon, comprises 40 parts of 80 parts of wollastonites, 20 parts of mica powders, 4 parts of coupling agents, 1 part of polyethylene wax and polymeric amide by weight, is prepared according to the method described above.
Embodiment 6
A high temperature resistant nylon, comprises 0 part of 70 parts of wollastonites, 1.5 parts of coupling agents, 3 parts of polyethylene waxs and kymene by weight, is prepared according to the method described above.
Embodiment 7
At embodiment 1 ~ embodiment 6, choose at random 3 high-temperature nylon samples and carry out Performance Detection in each embodiment respectively, concrete detected result, in Table 1(1) and table 1(2).
Wherein, former in formula, by weight: 4 parts of 50 parts of low viscosity glass fibre-reinforced polyamide, 40 parts of flat glass fibers, 25 parts of polymeric amide, 20 parts of fire retardants and processing aids, preparation method is for to carry out heat drying by low viscosity glass fibre-reinforced polyamide and polymeric amide, then putting into fire retardant and processing aid mixes to mixing machine, mixture, finally mixture and flat glass fiber are joined successively in screw rod forcing machine and are extruded, make finished product.
Therefore, from table 1(1) and table 1(2) can clearly find out that high-temperature nylon the present invention is bright and there is higher heat-drawn wire compared with conventional nylon, the advantages such as flexural strength is high, and shrinking percentage is low, buckling deformation is few, simultaneously, talcum powder can obviously improve rigidity, thermotolerance and the high creep properties of nylon, mica powder can improve the tensile strength of nylon, resistance to impact shock, Young's modulus, thermostability, antifatigue creep properties and resistance to abrasion.
Claims (6)
1. a high temperature resistant nylon, is characterized in that, by weight, comprising: 20 ~ 40 parts of 1 ~ 4 part of 60 ~ 80 parts of wollastonite, 0 ~ 25 part of talcum powder, mica powder 0 ~ 20,0.5 ~ 4 part of coupling agent, polyethylene wax and polymeric amide.
2. according to high temperature resistant nylon described in claim 1, it is characterized in that, according to weighing scale, comprise 25 ~ 35 parts of 2 ~ 3 parts of 65 ~ 75 parts of wollastonites, 10 ~ 25 parts of talcum powder, 5 ~ 20 parts of mica powders, 1 ~ 2.5 part of coupling agent, polyethylene wax and polymeric amide.
3. according to high temperature resistant nylon described in claim 1, it is characterized in that, according to weighing scale, comprise 0 part of 70 parts of wollastonites, 20 parts of talcum powder, 10 parts of mica powders, 1.5 parts of coupling agents, 3 parts of polyethylene waxs and kymene.
4. according to the arbitrary described high temperature resistant nylon of claim 1 ~ 3, it is characterized in that: the granularity of described talcum powder and mica powder is 800 ~ 1250 orders.
5. a method of preparing high temperature resistant nylon described in claim 1, is characterized in that, concrete steps are:
I) wollastonite, talcum powder and mica powder are mixed in proportion, after mixing, be dried to obtain mixing inorganic powder;
Ii) above-mentioned mixing inorganic powder is heated to, after 80 ~ 120 ℃, add coupling agent to mix, then puts into homogenizer and stir, obtain mixture;
Iii) said mixture is added after polymeric amide in proportion, put into low-speed mixer and mix, then be transported to and in twin screw extruder, carry out mixingly, extruding pelletization, makes finished product.
6. according to the method for preparing high temperature resistant nylon described in claim 5, it is characterized in that: in described twin screw extruder, mixing temperature is 180 ~ 250 ℃.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747279A (en) * | 2016-12-14 | 2017-05-31 | 安徽瑞研新材料技术研究院有限公司 | A kind of inorganic non-metallic exotic material and preparation method thereof |
| CN108395627A (en) * | 2018-04-04 | 2018-08-14 | 大连环球矿产股份有限公司 | A kind of automobile-used polypropylene dedicated material and preparation method thereof |
| CN109097854A (en) * | 2018-08-14 | 2018-12-28 | 安徽和邦纺织科技有限公司 | A kind of preparation method by polyamide modified polyester fiber |
| CN110066510A (en) * | 2019-05-21 | 2019-07-30 | 苏州博利迈新材料科技有限公司 | A kind of resistant, toughened nylon material and preparation method thereof |
| CN115537181A (en) * | 2022-09-02 | 2022-12-30 | 浙江国泰萧星密封材料股份有限公司 | Talc-based high-temperature-resistant sealing material and preparation method thereof |
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| CN106747279A (en) * | 2016-12-14 | 2017-05-31 | 安徽瑞研新材料技术研究院有限公司 | A kind of inorganic non-metallic exotic material and preparation method thereof |
| CN108395627A (en) * | 2018-04-04 | 2018-08-14 | 大连环球矿产股份有限公司 | A kind of automobile-used polypropylene dedicated material and preparation method thereof |
| CN109097854A (en) * | 2018-08-14 | 2018-12-28 | 安徽和邦纺织科技有限公司 | A kind of preparation method by polyamide modified polyester fiber |
| CN110066510A (en) * | 2019-05-21 | 2019-07-30 | 苏州博利迈新材料科技有限公司 | A kind of resistant, toughened nylon material and preparation method thereof |
| CN115537181A (en) * | 2022-09-02 | 2022-12-30 | 浙江国泰萧星密封材料股份有限公司 | Talc-based high-temperature-resistant sealing material and preparation method thereof |
| CN115537181B (en) * | 2022-09-02 | 2024-02-09 | 浙江国泰萧星密封材料股份有限公司 | Talc-based high-temperature-resistant sealing material and preparation method thereof |
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| CN104072982B (en) | 2016-05-18 |
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