High heat resistance and wear resistance glass fiber enhanced nylon material for engine and preparation method

Abstract

The invention provides a high heat resistance and wear resistance glass fiber enhanced nylon material for an engine and a preparation method. The material is prepared from the following materials in percentage by mass: 35%-75% of high-temperature-resistance nylon resin, 18%-50% of glass fiber, 0.5%-1% of an antioxidant, 0.5%-1% of a thermal stabilizer, 5%-15% of a maleic anhydride copolymer, 0.5%-1% of a glass fiber exposure preventer and 0.5%-2% of silicone master batch. The existing glass fiber enhanced nylon material in China hardly meets the harsh requirements of various parts of an automobile engine, particularly special components such as an engine oil bottom cover and an air intake pipe. The glass fiber enhanced nylon material provided by the invention has the advantages of high heat resistance, high wear resistance, high corrosion resistance, high strength and the like and can adapt to use environments of various peripheral parts of the automobile engine; furthermore, the use range of the glass fiber enhanced nylon material in the automobile industry is greatly expanded.

Description

technical field [0001] The invention relates to a highly heat-resistant and wear-resistant glass fiber-reinforced nylon material for engines and a preparation method thereof, belonging to the field of modification and molding of polymer engineering plastics. [0002] technical background [0003] Nylon, also known as polyamide, is a general term for thermoplastic resins containing repeating amide groups -[NHCO]- on the main molecular chain. It has good comprehensive properties, including high strength, heat resistance, wear resistance, chemical resistance, self-lubrication, and easy processing. In particular, HTPA high-temperature nylon (commonly known as PPA) has more excellent comprehensive properties, and has good performance in thermal, electrical, physical and chemical resistance, especially at high temperatures, it still has high rigidity, high strength and excellent durability. Dimensional accuracy and stability, HTPA also has good processability, and can be processed...

AI Technical Summary

Problems solved by technology

[0004] At present, the automotive industry is increasingly demanding high heat resistance, high wear resistance, and high strength nylon materials. Many companies and research institutes have done a lot of work on the development of glass fiber reinforced nylon materials, but most of the developed glass fiber reinforced nylon materials The performance of the material is difficult to meet the stringent requirements of automotive engine parts, or it can only be used for relatively simple parts such as engine decorative covers, and cannot be applied to parts such as oil pans and intake pipes, which greatly limits the use of glass fiber reinforced nylon in automobiles. Application of engine peripheral parts

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