A kind of carbon fiber reinforced wear-resistant high temperature nylon composite material and preparation method thereof

Abstract

A carbon fiber reinforced wear-resistant high-temperature nylon composite is prepared from components in parts by weight as follows: 35%-85% of high-temperature nylon resin, 5%-45% of carbon fiber, 5%-20% of a composite wear-resistant aid and 0.2%-0.6% of an antioxidant, wherein the composite wear-resistant aid is mixed filler modified with a coupling agent, and the mixed filler consists of soft filler with the Moh's hardness smaller than or equal to 2 and hard filler with the Moh's hardness larger than or equal to 5. The carbon fiber reinforced wear-resistant high-temperature nylon composite has mechanical performance, heat resistance and low friction coefficient during high bearing and has low wear loss and excellent comprehensive performance.

Description

technical field [0001] The invention belongs to the technical field of high-temperature nylon materials, and in particular relates to a nylon composite material and a preparation method thereof. Background technique [0002] High-temperature nylon resins generally refer to nylon engineering plastics whose long-term use temperature is above 150°C after modification. The main industrialized products include aliphatic nylon PA46 and semi-aromatic nylon PA4T, PA6T, PA9T and PA10T. High-temperature nylon resin has the advantages of good mechanical properties, wear resistance, heat resistance and chemical resistance. Semi-aromatic high-temperature nylon resin also overcomes the disadvantage of high water absorption of nylon resin. High-temperature nylon resin can be used for sliding parts such as gears, bearings, valves, structural components, fuel pipelines, etc. Under these conditions, its bearing capacity is not enough, its self-lubricating property is poor, and it wears a lot...

AI Technical Summary

Problems solved by technology

The patent prepared continuous long fiber reinforced high temperature resistant nylon composite material has mechanical properties, high temperature resistance and dimensional stability, but the fiber length of continuous long fiber reinforced high temperature resistant nylon composite material is large, which is not conducive to the reduction of friction coefficient and wear of the material. At the same time, the continuous long fiber reinforced high temperature resistant nylon composite material needs special requirements for molding equipment, and the process is complicated

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