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Wear resistant and antistatic polyamide composite material and preparation method thereof

A composite material and polyamide technology, applied in the wear-resistant field of composite materials, can solve the problems of high material cost, difficult material manufacturing, poor surface gloss, etc., to improve interface bonding strength, improve latent heat energy storage performance, and small thermal expansion coefficient Effect

Inactive Publication Date: 2017-07-21
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, nylon is mainly modified by adding a toughening agent to the nylon material. However, after mixing various materials, the dispersion of each component is not good during the blending process, and the compatibility between the components is poor. Poor resistance, insufficient strength, toughness, corrosion resistance, high material cost, difficult demoulding, poor surface gloss, poor processing performance, unstable product quality, for the wear resistance of nylon, mainly by adding molybdenum trisulfide, Polytetrafluoroethylene, etc., but if one is used alone, it is difficult to meet the requirements of increased wear and increased hardness. If both are added at the same time, it will be difficult to increase the manufacturing of materials, and the materials are difficult to be compatible.

Method used

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  • Wear resistant and antistatic polyamide composite material and preparation method thereof
  • Wear resistant and antistatic polyamide composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A wear-resistant and antistatic polyamide composite material, which consists of 70 parts of polyamide matrix, 8 parts of wear-resistant material, 10 parts of filler, 13 parts of toughening compatibilizer, 3 parts of modified graphene, and 8 parts of carbon fiber according to the weight ratio. 1 part, 1 part of dispersant and 0.5 part of antioxidant; the wear-resistant material is mixed with modified hexagonal boron nitride microchips and silicon carbide capsules with a weight ratio of 1:5; the filler is composed of It is formed by mixing titanium dioxide, carbon black and glass powder at 3:2:2; the polyamide matrix is ​​PA66, the toughening compatibilizer is POE grafted maleic anhydride, and the modified graphene Graphene oxide is treated with hexachlorocyclotriphosphazene, and the weight ratio of the two is 1:10; the carbon fiber is 6K carbon fiber, and before use, the carbon fiber is firstly dissolved in acetone for 70 o C soaked in a constant temperature water bath f...

Embodiment 2

[0035] A kind of wear-resisting antistatic type polyamide composite material, by weight ratio, by polyamide substrate 65 parts, wear-resisting material 10 parts, filler 13 parts, toughening compatibilizer 16 parts, modified graphene 5 parts, carbon fiber 10 parts part, 2 parts of dispersant and 0.8 part of antioxidant; the wear-resistant material is mixed with modified hexagonal boron nitride microchips and silicon carbide capsules with a weight ratio of 1:5; the filler is composed of It is formed by mixing titanium dioxide, carbon black and glass powder at 3:2:2; the polyamide matrix is ​​PA66, the toughening compatibilizer is POE grafted maleic anhydride, and the modified graphene Graphene oxide is treated with hexachlorocyclotriphosphazene, and the weight ratio of the two is 1:13; the carbon fiber is 6K carbon fiber, and before use, the carbon fiber is firstly dissolved in acetone for 70 o C soaked in a constant temperature water bath for 24 hours, then soaked in concentrat...

Embodiment 3

[0043]A kind of wear-resisting antistatic type polyamide composite material, by weight ratio, by polyamide matrix 60 parts, wear-resisting material 13 parts, filler 15 parts, toughening compatibilizer 18 parts, modified graphene 7 parts, carbon fiber 12 parts 1 part, 3 parts of dispersant and 1 part of antioxidant; the wear-resistant material is mixed with modified hexagonal boron nitride microchips and silicon carbide capsules with a weight ratio of 1: 6; the filler consists of a weight ratio of It is formed by mixing titanium dioxide, carbon black and glass powder at 3:2:2; the polyamide matrix is ​​PA66, the toughening compatibilizer is POE grafted maleic anhydride, and the modified graphene Graphene oxide is treated with hexachlorocyclotriphosphazene, and the weight ratio of the two is 1:15; the carbon fiber is 6K carbon fiber, and before use, the carbon fiber is first soaked in acetone for 24 hours under the condition of a constant temperature water bath at 70°C, and then ...

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Abstract

The invention relates to a wear resistant and antistatic polyamide composite material and a preparation method thereof. The composite material is composed of a polyamide matrix, a wear-resistant material, filler, a toughening compatibilizer, modified graphene, carbon fiber, a dispersant and an antioxidant. The wear-resistant material is formed by mixing of a modified hexagonal boron nitride microchip and a silicon carbide capsule, the filler is formed by mixing of titanium dioxide, carbon black and glass powder, the toughening compatibilizer is POE-g-MAH, and the modified graphene is phosphonitrilic chloride trimer treated graphene oxide. The synergistic effect of the modified hexagonal boron nitride microchip and the silicon carbide capsule can improve the wear resistance of the composite material, modified graphene, carbon fiber and carbon black are bridged into a conductive path, so that the composite material can have antistatic effect, the toughening compatibilizer prepared by the invention can improve the toughness of the composite material and the interface bonding force of the addition materials and the polyamide matrix. The preparation process provided by the invention is simple, and the prepared polyamide composite material has high wear resistance, high dispersibility and antistatic effects.

Description

technical field [0001] The invention relates to the technical field of wear-resistant composite materials, in particular to a wear-resistant conductive polyamide composite material and a preparation method thereof. Background technique [0002] Polyamide is an excellent engineering plastic with high strength and excellent heat resistance, corrosion resistance, wear resistance, and processing fluidity. It has been widely used in automobiles, electronics, electrical equipment, mechanical parts, transportation equipment, etc. [0003] With the miniaturization of automobiles, the high performance of electronic and electrical equipment, and the acceleration of the lightweight of mechanical equipment, the demand for nylon will be higher and greater. In particular, as a structural material, nylon has high requirements for its strength, wear resistance, heat resistance, cold resistance, and electrical conductivity. The inherent shortcomings of nylon are also important factors that...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L51/06C08K13/06C08K9/10C08K9/06C08K9/04C08K9/02C08K3/22C08K3/04C08K3/40C08K3/38C08K7/06B29C47/92B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704C08L77/06C08L2201/04C08L2201/08C08L51/06C08K13/06C08K9/10C08K9/06C08K9/04C08K9/02C08K2003/2241C08K3/04C08K3/40C08K2003/385C08K7/06
Inventor 牛永平刘任晖杜三明张军凯蔡俊青张永振
Owner HENAN UNIV OF SCI & TECH
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