Modified nylon material for sealing ring

Abstract

The invention discloses a modified nylon material for a sealing ring. The modified nylon material is composed of the following raw material components in parts by weight: 100-120 parts of polycaprolactam, 80-90 parts of polyparaphenylene terephthalamide, 80-100 parts of polymethyl methacrylate, 60-80 parts of chloroprene rubber, 65-70 parts of polyamide, 40-50 parts of polyvinylidene fluoride, 50-55 parts of high-density polyethylene, 35-40 parts of polycarbonate, 10-12 parts of disodium hydrogen phosphate, 15-20 parts of viscose fiber, 10-20 parts of polyformaldehyde, 20-30 parts of polyester fiber, 10-15 parts of polyimide, 12-15 parts of polyvinyl chloride, 20-25 parts of polyvinyl acetate, 25-30 parts of polyphenylether, 35-40 parts of lcp engineering plastics, 15-20 parts of nano-zirconia, 10-15 parts of glass fiber powder, 5-10 parts of quartz powder, 10-15 parts of silica, and 10-15 parts of bentonite. The modified nylon material for the sealing ring improves the weather resistance and the wear resistance of the sealing ring, improves the weather resistance of the sealing ring, and improves the toughness, strength and tensile property of the sealing ring.

Description

technical field [0001] The invention relates to the technical field of sealing ring materials, in particular to a modified nylon material used for sealing rings. Background technique [0002] The current energy industry is developing rapidly, and the exploitation and transmission of energy such as oil and natural gas requires a large number of pipelines and valves for controlling pipelines. Most of the new sources of energy such as oil and natural gas are located in areas with harsh climates, extremely poor terrain, and few human footprints. The natural environment and climate are extremely harsh, and the performance and quality of energy transportation pipelines are highly required. Moreover, the medium in the pipeline often contains debris or even sand and gravel, which poses a great problem to the design and use of pipeline valves, and the sealing ring is an indispensable and important component in pipeline valves, and its performance and quality determine the use of the ...

AI Technical Summary

Problems solved by technology

Although PTFE has good sealing performance, its mechanical properties are not good, its tensile strength and compressive strength are not high, and its rebound ability is poor.

Nylon 66 is also used at home and abroad, or nylon 66 filled with glass fiber, nylon 66 filled with polytetrafluoroethylene, nylon 66 filled with carbon fiber, etc. are used as sealing rings for pipeline valves, but the above materials cannot have the excellent performance of each component at the same time. The overall performance of the sealing ring is not good, there is still a lot of room for improvement