CN104072982B - A kind of high temperature resistant nylon and preparation method thereof - Google Patents
A kind of high temperature resistant nylon and preparation method thereof Download PDFInfo
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- CN104072982B CN104072982B CN201410340788.0A CN201410340788A CN104072982B CN 104072982 B CN104072982 B CN 104072982B CN 201410340788 A CN201410340788 A CN 201410340788A CN 104072982 B CN104072982 B CN 104072982B
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- 229920001778 nylon Polymers 0.000 title claims abstract description 47
- 239000004677 Nylon Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 25
- 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 24
- 239000010445 mica Substances 0.000 claims abstract description 23
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 23
- 239000007822 coupling agent Substances 0.000 claims abstract description 20
- 239000004952 Polyamide Substances 0.000 claims abstract description 19
- 229920002647 polyamide Polymers 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 239000010456 wollastonite Substances 0.000 claims abstract description 11
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 11
- 239000010954 inorganic particle Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 238000005453 pelletization Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 13
- 238000005303 weighing Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005452 bending Methods 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 6
- 239000003365 glass fiber Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000006057 Non-nutritive feed additive Substances 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
- 239000011521 glass Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004597 plastic additive Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000011160 research Methods 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
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
- B29C48/022—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
-
- 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
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- 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
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- 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
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- 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
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- Engineering & Computer Science (AREA)
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- Health & Medical Sciences (AREA)
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a kind of high temperature resistant nylon and preparation method thereof, wherein, high temperature resistant nylon, 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, Tissuemat E and polyamide; Concrete preparation method is: 1, wollastonite, talcum powder and mica powder are mixed in proportion, be dried to obtain mixing inorganic particle after mixing; Above-mentioned inorganic particle is heated to, after 80 ~ 120 DEG C, add coupling agent to mix, then puts into homogenizer and stir, obtain mixture; Said mixture is added after polyamide in proportion, put into low-speed mixer and mix, then be transported to and in double screw extruder, carry out mixingly, extruding pelletization, makes finished product; This high temperature resistant nylon has the advantages such as the high and bending strength (rigidity) of heat distortion temperature is good, can effectively reduce shrinkage factor, buckling deformation and the hygroscopicity of nylon, plastic products, and manufacturing process is simple, with low cost.
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
Polyamide, is commonly called as nylon, and PA write a Chinese character in simplified form in English, and PA is widely used in to manufacture manufacturing machine, chemistry and the aspect such as electricParts, as bearing, gear, roll shaft, impeller, seal washer, tubing etc., in the side such as automobile, railway, sports equipment, household electrical appliancesThe various parts that face uses PA to manufacture more and more.
PA has good mechanical property, hot strength, compressive strength, impact strength and anti-wear performance. Due to the heat of PAHow deformation temperature, generally 80 DEG C of left and right, therefore, improves the application of temperature of PA, has become the technomania that plastics industry is paid close attention toPoint. 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 heatDeformation temperature and physical property, but because glass fibre is soft filamentary material, its impact strength, rigidity, health refer toMark is all subject to certain restrictions. Another kind method is to adopt resistant to elevated temperatures material alternately to inlay into different goods from PA, improves PAHeat resistance, for example: in the time of PA production of articles, adopt adhesive by common nylon with contain resistant to elevated temperatures epoxy resin, quartz,The materials such as glass fibre are wrapped in respectively skin, although it can improve its temperature tolerance, production technology is comparatively complicated, is produced intoThis 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 warpageDistortion 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, by weight, bagDraw together: 60 ~ 80 parts of wollastonites, 0 ~ 25 part of talcum powder, mica powder 0 ~ 20,0.5 ~ 4 part of coupling agent, 1 ~ 4 part of Tissuemat E and polyamide20 ~ 40 parts.
Preferably, according to weighing scale, comprise 65 ~ 75 parts of wollastonites, 10 ~ 25 parts of talcum powder, 5 ~ 20 parts of mica powders, coupling agent 1 ~25 ~ 35 parts of 2 ~ 3 parts of 2.5 parts, Tissuemat E and polyamide.
Further preferably, according to weighing scale, comprise 70 parts of wollastonites, 20 parts of talcum powder, 10 parts of mica powders, coupling agent 1.5Part, 0 part of 3 parts of Tissuemat Es 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,Concrete steps are:
I) wollastonite, talcum powder and mica powder are mixed in proportion, after mixing, be dried to obtain mixing inorganic particle;
Ii) above-mentioned inorganic particle is heated to, after 80 ~ 120 DEG C, add coupling agent to mix, then puts into homogenizerInterior stirring, obtains mixture;
Iii) said mixture is added after polyamide in proportion, put into low-speed mixer and mix, then be transported to two spiral shellsIn bar extruder, carry out mixingly, extruding pelletization, makes finished product.
Preferably, in described double screw extruder, mixing temperature is 180 ~ 250 DEG C.
High temperature resistant nylon provided by the invention, by the polynary grandidierite fibre that wollastonite, talcum powder and mica powder are formedDimension material and polyamide carry out blending and modifying, can obviously improve nylon heat distortion temperature, improve bending strength, effectively reduce nylonShrinkage factor, buckling deformation and the hygroscopicity of goods add by the auxiliary material of coupling agent and Tissuemat E simultaneously, make the performance of nylonBe further improved; In addition, the method for preparing high temperature resistant nylon provided by the invention, has technique simple, with low costAdvantage.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further explained, but is not limited to of the present inventionProtection domain.
Have poor, the easy moisture absorption of resistance to elevated temperatures in order to solve nylon in the past, cause the problems such as buckling deformation, the present invention carriesSupplied a kind of high temperature resistant nylon, by weight, it comprises: 60 ~ 80 parts of wollastonites, 0 ~ 25 part of talcum powder, mica powder 0 ~ 20, even20 ~ 40 parts of 1 ~ 4 part of connection 0.5 ~ 4 part of agent, Tissuemat E and polyamide.
This high temperature resistant nylon is by polynary grandidierite fibrous material and polyamides that wollastonite, talcum powder and mica powder are formedAmine carries out blending and modifying, can obviously improve nylon heat distortion temperature, improves bending strength, effectively reduces the contraction of nylon productsRate, buckling deformation and hygroscopicity.
Wherein, 1) wollastonite has unique acicular texture, the mechanical performance of modification of nylon is significantly improved, especiallyElastic strength and elastic modelling quantity. As excellent natural fiber, except its strengthening action, wollastonite also can significantly improve Buddhist nun simultaneouslyThe heat distortion temperature of dragon, obviously improves the dimensional stability of nylon products, effectively reduces shrinkage factor and the goods warpage of materialBe out of shape, give processing stability and the production processability of nylon excellence, improve the outward appearance of nylon products, existing without surface floating fiberResemble, make goods be imbued with natural gloss. Can also avoid declining because goods water suction causes bending strength and bending modulus simultaneouslyShortcoming. 2) talcum powder can improve rigidity, heat resistance and the high creep properties of nylon. 3) laminated structure of mica powder and fibrousThe stress that wollastonite interaction dispersible materials is suffered, the hot strength of raising nylon, impact strength, elastic modelling quantity, heatStability, antifatigue creep properties and wear resistence. 4) coupling agent, in nylon compounding, for improving synthetic resin and inorganic fillerOr a kind of plastic additive of reinforcing material interface performance. Claim again surface modifier. It can reduce and close in plastic processing processThe viscosity of resin melt, improves the decentralization of filler to improve processing characteristics, and then makes goods obtain good surperficial matterAmount and machinery, heat and electrical property. 5) Tissuemat E can increase gloss and the processing characteristics of product.
More preferably composition proportion of above-mentioned high temperature resistant nylon, according to weighing scale, comprise 65 ~ 75 parts of wollastonites, talcum powder 10 ~25 ~ 35 parts of 2 ~ 3 parts of 25 parts, 5 ~ 20 parts of mica powders, 1 ~ 2.5 part of coupling agent, Tissuemat E and polyamide; Be preferably the most wollastonite0 part of 70 parts, 20 parts of talcum powder, 10 parts of mica powders, 1.5 parts of coupling agents, 3 parts of Tissuemat Es and kymene. When talcum powder and micaWhen the granularity of 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 is all according to followingStep is carried out, and is specially:
I) wollastonite, talcum powder and mica powder are mixed in proportion, after mixing, be dried to obtain the inorganic powder of mixingBody;
Ii) above-mentioned inorganic particle is heated to, after 80 ~ 120 DEG C, add coupling agent to mix, then puts into homogenizerInterior stirring, obtains mixture;
Iii) said mixture is added after polyamide in proportion, put into low-speed mixer and mix, then be transported to two spiral shellsIn bar extruder, carry out mixingly, extruding pelletization, makes finished product.
In double screw extruder, mixing temperature is preferably 220 ~ 250 DEG C.
Preparation method's step I) in, first wollastonite, talcum powder and mica powder are mixed, can improve its mixingUniformity coefficient, makes the properties of nylons that makes even.
Step I i) in, put into homogenizer after coupling agent and stir by adding, carry out surface modification treatment, makeInorganic particle and resin can be better compatible.
Step I ii) in, will after mixture surface treatment, add again polyamide, can improve the addition of inorganic particle, changeKind resin performance.
Wherein, homogenizer is relative mixing speed with low-speed mixer, but the two does not have clear and definite speedRequirement.
Embodiment 1
A kind of high temperature resistant nylon, comprises 70 parts of wollastonites, 20 parts of talcum powder, 10 parts of mica powders, coupling agent 1.5 by weightPart, 0 part of 3 parts of Tissuemat Es and kymene, be prepared according to the method described above.
Embodiment 2
A kind of high temperature resistant nylon, comprise by weight 65 parts of wollastonites, 25 parts of talcum powder, 5 parts of mica powders, 1 part of coupling agent,25 parts of 3 parts of Tissuemat Es and polyamide, be prepared according to the method described above.
Embodiment 3
A kind of high temperature resistant nylon, comprises 75 parts of wollastonites, 10 parts of talcum powder, 20 parts of mica powders, coupling agent 2.5 by weightPart, 5 parts of 2 parts of Tissuemat Es and kymenes, be prepared according to the method described above.
Embodiment 4
A kind of high temperature resistant nylon, comprises 60 parts of wollastonites, 25 parts of talcum powder, 0.5 part of coupling agent, Tissuemat E by weight20 parts of 4 parts and polyamide, be prepared according to the method described above.
Embodiment 5
A kind of high temperature resistant nylon, comprises 80 parts of wollastonites, 20 parts of mica powders, 4 parts of coupling agents, Tissuemat E 1 by weight40 parts of part and polyamide, be prepared according to the method described above.
Embodiment 6
A kind of high temperature resistant nylon, comprises 70 parts of wollastonites, 1.5 parts of coupling agents, 3 parts of Tissuemat Es and polyamide by weight30 parts, be prepared according to the method described above.
Embodiment 7
At embodiment 1 ~ embodiment 6, in each embodiment, choose at random 3 high-temperature nylon samples and carry out performance inspection respectivelySurvey, concrete testing result, in Table 1(1) and table 1(2).
Wherein, former with formula, by weight: 50 parts of low viscosity glass fibre-reinforced polyamide, 40 parts of flat glass fibers,4 parts of 25 parts of polyamide, 20 parts of fire retardants and processing aids, preparation method is by low viscosity glass fibre-reinforced polyamide and polyamidesAmine carries out heat drying, then puts into fire retardant and processing aid and mixes to mixer, obtains mixture, finally by mixture andFlat glass fiber joins successively in screw rod extruder and extrudes, and makes 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 have compared with conventional nylonHigher heat distortion temperature, the advantage such as bending strength is high, and shrinkage factor is low, buckling deformation is few, meanwhile, talcum powder can obviously improveRigidity, heat resistance and the high creep properties of nylon, mica powder can improve the hot strength of nylon, impact strength, springformAmount, heat endurance, antifatigue creep properties and wear resistence.
Claims (4)
1. a high temperature resistant nylon, is characterized in that, according to weighing scale, comprises 70 parts of wollastonites, 20 parts of talcum powder, mica powder 100 part of part, 1.5 parts of coupling agents, 3 parts of Tissuemat Es and kymene.
2. according to high temperature resistant nylon described in claim 1, it is characterized in that: the granularity of described talcum powder and mica powder is 800 ~1250 orders.
3. 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 particle;
Ii) above-mentioned mixing inorganic particle is heated to, after 80 ~ 120 DEG C, add coupling agent to mix, then puts into homogenizerInterior stirring, obtains mixture;
Iii) said mixture is added after polyamide in proportion, put into low-speed mixer and mix, then it is crowded to be transported to twin-screwGo out in machine, to carry out mixingly, extruding pelletization, makes finished product.
4. according to the method for preparing high temperature resistant nylon described in claim 3, it is characterized in that: mixing in described double screw extruderTemperature be 180 ~ 250 DEG C.
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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 |
| 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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| CN102010593B (en) * | 2010-12-23 | 2012-10-10 | 南京聚隆科技股份有限公司 | Mineral and long glass fiber reinforced nylon 6 composite material and preparation method thereof |
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Effective date of registration: 20161223 Address after: Daweijia town Fengcun 116110 Liaoning Jinzhou District Dalian global mineral Patentee after: Dalian global mineral Limited by Share Ltd Address before: High Xiangli 116000 Liaoning Province, Dalian City Economic and Technological Development Zone No. 17 3-6-2 Patentee before: Zhang Jing |