Fiber-reinforced nylon composite material and preparation method thereof

Abstract

The invention provides a fiber-reinforced nylon composite material and a preparation method thereof. The fiber-reinforced nylon composite material comprises the following raw materials in parts by weight: 60-80 parts of nylon, 10-20 parts of organosilicone modified polyester acrylate, 5-10 parts of aramid fibers, 20-30 parts of modified graphene, 4-8 parts of a flexibilizer, 0.6-1.8 parts of a compatilizer, 0.2-0.6 part of a lubricating agent and 0.2-0.6 part of an antioxidant. The modified graphene is mainly prepared from graphene, oxalic acid and sodium metaaluminate. The preparation methodcomprises the steps of mixing the raw materials in different batches; and then carrying out double-screw extruding and pelletizing. The nylon composite material not only has quite good heat-conductioneffect, but also can resist quite high temperature, and is also quite excellent in other mechanical properties.

Description

technical field

[0001] The invention belongs to the technical field of polymer materials, and in particular relates to a fiber-reinforced nylon composite material and a preparation method thereof. Background technique

[0002] Nylon has excellent comprehensive properties such as good mechanical properties, good flexibility, wear resistance, oil resistance, self-lubrication, etc., and is widely used in the fields of automobile industry, electronic and electrical industry, mechanical equipment, construction industry and so on. Due to its advantages of short processing cycle, low production cost, long service life and high degree of product design freedom, it has been more and more widely used. In recent years, its application in thermal conductive polymer composite materials is particularly prominent. For example, DSM produces The high-power LED radiator has been generally recognized by the market.

[0003] In order to improve the surface corrosion resistance of thermally con...

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