High-wear-resistance heat-conduction nylon composite material and preparation method thereof

Abstract

The invention discloses a high-wear-resistance heat-conduction nylon composite material, which is prepared from the following raw materials in parts by weight: 100-110 parts of nylon resin, 10-15 parts of hydroxyl-terminated polydimethylsiloxane, 15-25 parts of hollow porous carbon microspheres, 10-15 parts of nano beta-silicon nitride, 10-15 parts of nano magnesium oxide powder, 10-15 parts of silicon-aluminum porous microspheres, 5-10 parts of nano silicon carbide, 5-10 parts of nano silicon dioxide, 0.05-0.1 part of a lubricant and 0.05-0.1 part of an antioxidant, wherein the average outerdiameter of the hollow porous carbon microspheres is 400-450 nm, the average inner diameter of the hollow porous carbon microspheres is 320-350 nm, and the mesoporous diameter of the hollow porous carbon microspheres is 45-50 nm. According to the invention, the hollow porous carbon microspheres, the nano beta silicon nitride, the nano magnesium oxide powder and the hydroxyl-terminated polydimethylsiloxane are added into the nylon composite material to form a plurality of uniformly distributed heat-conducting channels, so that the uniform distribution of the heat-conducting filler is facilitated, and the heat-conducting property of the nylon composite material is improved; and silicon-aluminum porous microspheres, nano silicon carbide and nano silicon dioxide are added to enhance the wear resistance of the nylon composite material.

Description

technical field [0001] The invention relates to a nylon composite material, in particular to a high wear-resistant and thermally conductive nylon composite material. Background technique [0002] Thermally conductive materials are widely used in heat transfer engineering, electronic information engineering and other fields. For a long time, most heat-conducting materials are metal materials, but due to many factors such as poor corrosion resistance, poor processing performance, and low product design freedom of metal materials, its application range is limited. As an engineering plastic, nylon has excellent comprehensive properties such as good mechanical properties, good flexibility, wear resistance, oil resistance, and self-lubricating properties. There are many types of nylon products, including PA6, PA66, PA46, PA612, etc. , are widely used in the automotive industry, electronic and electrical industry, mechanical equipment, construction and other fields. [0003] Sinc...

AI Technical Summary

Problems solved by technology

[0004] In order to improve the surface corrosion resistance of thermally conductive materials, methods such as metallurgy and anti-corrosion coatings are usually used, but this method greatly reduces the thermal conductivity of the material and other properties of the material have not been fundamentally improved

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