Aramid fiber-reinforced high-temperature-resistant nylon composite material and preparation method thereof

A nylon composite material and aramid fiber technology, which is applied in the field of polymer material processing, can solve the problems of easy exposure of fiber reinforcements, uneven distribution of fillers, poor compatibility, etc., and achieve stable product quality, simple preparation methods and processes , the effect of high production efficiency

Inactive Publication Date: 2014-03-12
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first purpose of the present invention is to provide a kind of aramid fiber reinforced high temperature resistant nylon composite material, to solve the compatibility of glass fiber reinforced high temperature resistant nylon in the prior art due to the shortcomings of the glass fiber's own structure and performance Poor, uneven distribution of fillers, easy exposure of fiber reinforcement and other technical problems and the resulting inconvenience of subsequent processing
[0006] The second purpose of the present invention is to provide a preparation method of aramid fiber reinforced high temperature resistant nylon composite material, to solve the problem of glass fiber reinforced high temperature resistant nylon in the prior art due to the shortcomings of the glass fiber itself in structure and performance Defects such as poor compatibility, uneven distribution of fillers, easy exposure of fiber reinforcements and the resulting technical problems of inconvenient subsequent processing

Method used

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  • Aramid fiber-reinforced high-temperature-resistant nylon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The main equipment used in the production of aramid fiber-reinforced high-temperature-resistant nylon composite materials used in this embodiment includes:

[0041] High-speed mixer, speed 450~1350r / min;

[0042] Twin-screw extruder, screw speed: 230~400rpm, set temperature: 285~305℃;

[0043] Water tank: cooling water temperature 25~45℃, pelletizer speed: 400~800rpm;

[0044] The high temperature resistant nylon is made of PA10T, which is provided by Shanghai Jieshijie New Materials (Group) Co., Ltd. Before use, put it in a drying oven and dry it at 100°C for 8 hours.

[0045] The aramid fiber is selected from the Tametar meta-aramid staple fiber provided by Yantai Taihe New Materials Co., Ltd., and is treated with diphenylmethane diisocyanate before use. The weight ratio of aramid fiber to diphenylmethane diisocyanate is 30%.

[0046] The compatibilizer is selected from maleic anhydride grafted SEBS;

[0047] The processing aid is a mixture of phenolic high-tempera...

Embodiment 2

[0056] The difference between this embodiment and Example 1 is that each raw material is weighed in the following parts by weight:

[0057] Aramid fiber 20 parts,

[0058] 70 parts of high temperature resistant nylon,

[0059] 20 parts of compatibilizer,

[0060] 3 parts of processing aids.

[0061] The high temperature resistant nylon is PA9T, which is provided by Shanghai Jieshijie New Materials (Group) Co., Ltd.

[0062] All the other processing steps are the same as in Example 1.

Embodiment 3

[0064] The difference between this embodiment and Example 1 is that each raw material is weighed in the following parts by weight:

[0065] 30 parts of aramid fiber,

[0066] 70 parts of high temperature resistant nylon,

[0067] 20 parts of compatibilizer,

[0068] 3 parts of processing aids.

[0069] All the other processing steps are the same as in Example 1.

[0070] For the products obtained in Example 1-Example 3, ASTM standards were used to test its comprehensive mechanical properties and flame retardant properties, including tensile strength, flexural strength, flexural modulus, Izod notched impact strength and heat distortion temperature. The test results are shown in Table 1 below.

[0071] Table 1

[0072]

[0073] As can be seen from Table 1, the mechanical properties, high temperature resistance and flame retardancy of the aramid fiber / high temperature resistant nylon composite material with aramid fiber as a reinforcing agent in the examples of the presen...

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Abstract

The invention discloses an aramid fiber-reinforced high-temperature-resistant nylon composite material and a preparation method thereof. The composite material is prepared from an aramid fiber, high-temperature-resistant nylon, a compatilizer, processing aids and the like through mixing and then melt blending and extrusion by a screw. The composite material prepared in the invention has excellent heat resistance, mechanical properties and flame retardation and is extensively used in fields like electric products, automobiles and the war industry. The composite material is prepared through extrusion by the screw; the preparation method has the advantages of simple process, high continuous production efficiency and stable product quality.

Description

technical field [0001] The invention belongs to the technical field of polymer material processing, and in particular relates to an aramid fiber-reinforced high-temperature-resistant nylon composite material and a preparation method thereof. Background technique [0002] High temperature resistant nylon products mainly include 6T, 7T, 8T, 9T, 10T, 12T, etc. in semi-aromatic polyamides, which are prepared by melting polycondensation of dicarboxylic acids with aromatic rings and aliphatic diamines. Aromatic rings are introduced into the main chain of polyamide molecules, which improves heat resistance and mechanical properties, reduces water absorption, and has a more suitable cost performance. It is a resistance between general-purpose engineering plastic nylon and high-temperature-resistant engineering plastic PEEK. High thermal resin, mainly used in automotive and electrical and electronic industries. With the rapid development of high technology, there are new breakthroug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L51/00C08L51/06C08J5/06C08K5/134C08K5/3492C08K5/20C08K5/09C08K5/098B29C47/92B29C48/92
CPCB29B9/14B29B7/46B29B7/72B29B7/7461B29B7/90B29B9/06B29B9/12B29C48/04B29C48/92B29C2948/92704B29C2948/92895C08K7/02C08L51/04C08L51/06C08L77/06C08L77/10C08J5/06C08J2377/06C08J2451/00C08J2451/06C08J2477/10C08L2201/02C08L2201/08C08L2205/02C08L2205/03C08L2205/035C08L2205/16C08L51/006
Inventor 李宗仁
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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