PPS (polyphenylene sulfide) resin composite material for corrosion-resistant end surface sealing strips and preparation method thereof

Abstract

The invention discloses a PPS resin composite material for corrosion-resistant end surface sealing strips. The PPS resin composite material for the corrosion-resistant end surface sealing strips is composed of, by weight percentage, 12-22% of carbon fiber, 5-15% of PTFE (polytetrafluoroethylene), 5-15% of modified montmorillonite, 1-4% of graphene, 1-2% of coupling agent, 0.2-0.5% of lubricant, 0.5-1% of antioxidant and PPS as balance, wherein the modified montmorillonite is obtained by modifying Na-montmorillonite through vinylbenzyl-dimethyl-octadecyl ammonium chloride. The invention also discloses a preparation method of the PPS resin composite material for the corrosion-resistant end surface sealing strips. According to the PPS resin composite material for the corrosion-resistant end surface sealing strips, the carbon fiber added into the PPS can improve the impact resistance, the tensile performance, the bending performance and the compression performance and reduce creep deformation; the added PTFE can reduce the friction coefficient and improve the tenacity and the corrosion resistance; the modified montmorillonite and the graphene can effectively improve the mechanical performance and the corrosion resistance. The end surface sealing strips prepared from the PPS resin composite material is high in corrosion resistance and can maintain good tenacity during long-term contact with refrigerant oil, thereby achieving a long service life.

Description

technical field [0001] The invention relates to a PPS resin composite material for a corrosion-resistant end face sealing strip for an air-conditioning scroll compressor on a new energy vehicle and a preparation method thereof, and belongs to the field of composite materials. Background technique [0002] Polyphenylene sulfide (PPS) has excellent chemical resistance, UV resistance, and weather resistance. It can be used outdoors for a long time, has excellent flame retardancy, high oxygen index, and the continuous use temperature can reach up to 260 ° C. As a result, PPS has certain defects, mainly reflected in poor toughness, high brittleness, and poor bending resistance. When exposed to corrosive substances for a long time, its elongation at break decreases significantly. [0003] New energy vehicles with electric motors as the main power generally use air-conditioning scroll compressors as cooling power. The air conditioner scroll compressor is a compressor that compress...

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Problems solved by technology

[0002] Polyphenylene sulfide (PPS) has excellent chemical resistance, UV resistance, and weather resistance. It can be used outdoors for a long time, has excellent flame retardancy, high oxygen index, and the continuous use temperature can reach up to 260 ° C. As a result, PPS has certain defects, mainly reflected in poor toughness, high brittleness, and poor bending resistance. When it is exposed to corrosive substances for a long time, its elongation at break decreases significantly.

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