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Nylon composite material and preparation method thereof

A nylon composite material, nylon technology, applied in the field of nylon composite materials, can solve the problems of unsolvable compatibility problems, composite material performance decline, processing machine wear, etc., to improve melt flow rate, improve processing performance, reduce effect of phase separation

Active Publication Date: 2008-07-30
SILVER AGE ENG PLASTICS DONGGUAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the processing is more difficult and the wear on the processing machine is more serious.
[0008] However, none of the above three patents are used to prepare nylon composites containing thermotropic liquid crystal polymers and acicular mineral fibers.
If the nylon composite material of the present invention is prepared directly by referring to the above-mentioned patent, the direct compatibility problem of each component cannot be solved, which will lead to phase separation, and the performance of the composite material will be significantly reduced.

Method used

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  • Nylon composite material and preparation method thereof
  • Nylon composite material and preparation method thereof
  • Nylon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In parts by weight, weigh 60 parts of nylon 66 slices (engineering plastic grade nylon 66 slices produced by China Shenma Group Co., Ltd.), 10 parts of Vectra A-type thermotropic liquid crystal polymers (produced by Goodfellow Company in the United States), 25 parts of needle-shaped Wollastonite (produced by Nanfang Wollastonite Industrial Company, Xinyu City, Jiangxi), 4.5 parts of maleic anhydride and styrene copolymer type coupling agent (produced by Shanghai Shibida Company), 0.5 part of Lunchemao-R hindered phenol antioxidant (produced by Great Lakes Corporation of the United States); under stirring conditions, mix the above components evenly, then extrude, draw, and granulate the resulting mixture in an extruder at 290 ° C, and make samples by injection molding, and perform performance test. The mechanical properties of the sample were tested according to the following standards. The results are shown in Table 1. It can be seen from the table that compared with pu...

Embodiment 2

[0033] In parts by weight, weigh 70 parts of nylon 66 slices (engineering plastic grade nylon 66 slices produced by China Shenma Group Co., Ltd.), 10 parts of Zenite type thermotropic liquid crystal polymers (produced by U.S. Dupont Company), 15 parts of acicular silicon Limestone (produced by Nanfang Wollastonite Industrial Company, Xinyu City, Jiangxi Province), 4.5 parts of maleic anhydride and styrene copolymer type coupling agent (produced by Shanghai Shibida Company), 0.5 part of Lunchemao-R hindered phenol antioxidant ( Produced by the Great Lakes Company of the United States); under stirring conditions, the above-mentioned components are mixed uniformly, and then the resulting mixture is extruded, drawn, and granulated in an extruder at 285 ° C, and injected into samples for performance testing . The mechanical properties of the sample were tested according to the following standards, and the results are shown in Table 2: As can be seen from the table, compared with pu...

Embodiment 3

[0037]In parts by weight, weigh 60 parts of nylon 66 slices (engineering plastic grade nylon 66 slices produced by China Shenma Group Co., Ltd.), 10 parts of Vectra A-type thermotropic liquid crystal polymers (produced by Goodfellow Company in the United States), 25 parts of needle-shaped Wollastonite (produced by Southern Wollastonite Industrial Company, Xinyu City, Jiangxi Province), 4.5 parts of EPON coupling agent (produced by Aldrich Company of the United States), 0.5 part of Lunchemao-R type hindered phenol antioxidant (produced by Great Lakes Company of the United States); under stirring conditions The above components were mixed uniformly, and then the resulting mixture was extruded, drawn, pelletized in an extruder at 290°C, and injected into samples for performance testing. The mechanical properties of the sample were tested according to the following standards, and the results are shown in Table 3: As can be seen from the table, compared with pure nylon 66, the tensi...

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Abstract

The invention discloses nylon composite material and a preparation method thereof. The material is composed of nylon 66 slices, thermotropic liquid crystalline polymer, needle-like mineral fiber, coupling agent and antioxidant. The weight ratio of the nylon 66 slices, the thermotropic liquid crystalline polymer, the needle-like mineral fiber, the coupling agent and the antioxidant is 60-70: 10-15: 20-30: 4.5: 0.5. The preparation method comprises the following steps: the nylon 66 slices, the thermotropic liquid crystalline polymer, the needle-like mineral fiber, the coupling agent and the antioxidant with weight ratio of 60-70: 10-15: 20-30: 4.5: 0.5 are mixed evenly under the agitating condition, and then extruded, drawn and granulated at 280 DEG C or 295 DEG C, and molded by injection into the sample to obtain the nylon system composite material. The nylon system of the invention can attain the remarkable enhancement effect under the circumstance of a little thermotropic liquid crystalline, and can have the effects on lightening the warping of the product, reducing the roughness of the product surface and reducing the cost.

Description

technical field [0001] The invention relates to a nylon composite material, in particular to a nylon composite material containing thermotropic liquid crystal polymer and acicular mineral filler and a preparation method thereof. Background technique [0002] Thermotropic liquid crystal polymers appear in a liquid crystal state because heating destroys the crystalline structure of polymer segments and makes the amorphous structure enter a molten state and form a certain orderly arrangement. It is a new type of high-performance polymer material, which is characterized by high modulus, high strength, unique fluidity in the liquid crystal state, excellent thermal stability, chemical resistance and weather resistance, and excellent Excellent comprehensive properties such as solvent resistance, low linear expansion coefficient and density. Utilizing the characteristics of thermotropic liquid crystal polymers, blending and modifying them with thermoplastic engineering plastics can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08K7/04C08K5/54C08K5/13C08L23/08C08L35/00
Inventor 傅轶刘迎春谭颂斌张德清刘述梅赵建青
Owner SILVER AGE ENG PLASTICS DONGGUAN
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