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Wear-resistant and hydrolysis-resistant PA66 (polyamide 66) material and preparation method thereof

A technology of PA66 and hydrolysis resistance, which is applied in the field of PA66 materials and its preparation, can solve the problems of low hydrolysis resistance retention rate, low wear resistance strength, and unstable performance, and achieve low cost, stable product performance, and improved wear resistance Effect

Inactive Publication Date: 2018-11-06
DONGGUAN ZHONGYI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, the common PA66 fiber-reinforced materials in China have disadvantages such as low wear resistance, unstable performance, large fluctuation, and low retention rate of hydrolysis resistance, which seriously limit the application in this field.

Method used

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  • Wear-resistant and hydrolysis-resistant PA66 (polyamide 66) material and preparation method thereof
  • Wear-resistant and hydrolysis-resistant PA66 (polyamide 66) material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In the embodiment of the present invention, a wear-resistant and hydrolysis-resistant PA66 material is composed of the following raw materials in parts by weight: 85 parts of PA66 material, 55 parts of synthetic rubber, 18 parts of new antioxidant, 25 parts of compatibilizer, sodium calcium silicon 50 parts of salt glass, 22 parts of molybdenum disulfide. Wherein the synthetic rubber is hydroxyl-terminated polybutadiene; the novel antioxidant is a 1:1 mixture of dialkyl diphenylamine and isooctyl acrylate.

[0022] (1) Add PA66 material and synthetic rubber, then add compatibilizer and mix to obtain the first group of mixture;

[0023] (2) Add soda-lime silicate glass to the first group of mixtures, and stir at a stirring speed of 500 rpm to form the second group of mixtures;

[0024] (3) Slowly add molybdenum disulfide to the second group of mixture, stir at a constant speed, and let stand for 2 hours.

Embodiment 2

[0026] In the embodiment of the present invention, a wear-resistant and hydrolysis-resistant PA66 material is composed of the following raw materials in parts by weight: 105 parts of PA66 material, 75 parts of synthetic rubber, 25 parts of new antioxidant, 35 parts of compatibilizer, sodium calcium silicon Salt glass 65 parts, molybdenum disulfide 30 parts. Wherein the synthetic rubber is hydroxyl-terminated polybutadiene; the novel antioxidant is a 1:1 mixture of dialkyl diphenylamine and isooctyl acrylate.

[0027] (1) Add PA66 material and synthetic rubber, then add compatibilizer and mix to obtain the first group of mixture;

[0028] (2) Add soda-lime silicate glass to the first group of mixtures, and stir at a stirring speed of 500 rpm to form the second group of mixtures;

[0029] (3) Slowly add molybdenum disulfide to the second group of mixture, stir at a constant speed, and let stand for 3 hours.

Embodiment 3

[0031] In the embodiment of the present invention, a wear-resistant and hydrolysis-resistant PA66 material is composed of the following raw materials in parts by weight: 95 parts of PA66 material, 60 parts of synthetic rubber, 20 parts of new antioxidant, 29 parts of compatibilizer, sodium calcium silicon 57 parts of salt glass and 25 parts of molybdenum disulfide. Wherein the synthetic rubber is hydroxyl-terminated polybutadiene; the novel antioxidant is a 1:1 mixture of dialkyl diphenylamine and isooctyl acrylate.

[0032] (1) Add PA66 material and synthetic rubber, then add compatibilizer and mix to obtain the first group of mixture;

[0033] (2) Add soda-lime silicate glass to the first group of mixtures, and stir at a stirring speed of 500 rpm to form the second group of mixtures;

[0034] (3) Slowly add molybdenum disulfide to the second group of mixture, stir at a constant speed, and let stand for 2 hours.

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Abstract

The invention discloses a wear-resistant and hydrolysis-resistant PA66 (polyamide 66) material and a preparation method thereof. The wear-resistant and hydrolysis-resistant PA66 material comprises thefollowing raw materials in parts by weight: 98 parts of a PA66 material, 65 parts of synthetic rubber, 22 parts of a novel antioxidant, 30 parts of a compatibilizer, 58 parts of soda-lime silicate glass and 27 parts of molybdenum disulfide; wherein the synthetic rubber is hydroxyl-terminated polybutadiene; the novel antioxidant is a mixture of dialkyl diphenylamine and iso-Octyl acrylate at a ratio of 1:1. The preparation method comprises the following steps: the PA66 material and the synthetic rubber are added, and then the compatibilizer is added to obtain a first group mixture; the soda-lime silicate glass is added into the first group mixture, and stirred at a stirring speed of 500 rpm to obtain a second group mixture; the molybdenum disulfide is slowly added into the second group mixture, is stirred at a constant speed, and stands for 2.5 hours. The wear-resistant and hydrolysis-resistant PA66 material provided by the invention is high in water resistance, high in wear resistance, stable in product performance, simple in manufacturing process and low in cost.

Description

technical field [0001] The invention relates to a PA66 material and a preparation method thereof, in particular to a wear-resistant and hydrolysis-resistant PA66 material and a preparation method thereof. Background technique [0002] PA66 (polyamide 66 or nylon 66), compared with PA6, PA66 is more widely used in the automotive industry, instrument housings and other products that require impact resistance and high strength requirements. Widely used in the manufacture of parts for machinery, automobiles, chemical and electrical devices, such as gears, rollers, pulleys, roller shafts, impellers in pump bodies, fan blades, high-pressure sealing enclosures, valve seats, gaskets, bushings, and various handles , support frame, inner layer of wire package, etc. Synthetic rubber is a highly elastic polymer that is artificially synthesized. Also known as synthetic elastomer, it is one of the three major synthetic materials, and its output is only lower than that of synthetic resin...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L9/00C08K13/02C08K3/30C08K3/40C08K5/18
CPCC08K2003/3009C08L77/06C08L2205/03C08L2205/08C08L9/00C08K13/02C08K3/30C08K3/40C08K5/18
Inventor 李崀刘胜涂伟
Owner DONGGUAN ZHONGYI NEW MATERIAL TECH CO LTD
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