Rubber material for oil-resistant, high-temperature, and high-pressure gaskets and preparation method thereof

Abstract

The invention discloses an oil-resistant and high temperature-resistant high-pressure washer rubber material and a preparation method thereof. The oil-resistant and high temperature-resistant high-pressure washer rubber material is prepared from the following raw materials in parts by weight: 70 to 90 parts of nitrile rubber, 20 to 30 parts of chloroprene rubber, 18 to 22 parts of vinylidene fluoride / chlorotrifluor ethylene copolymer, 5 to 8 parts of epoxidized fatty acid methyl ester, 6 to 8 parts of dicapryl phthalate, 4 to 5 parts of anilmomethyl triethoxy silane, 12 to 16 parts of asphalt oil and the like. The oil-resistant and high temperature-resistant high-pressure washer rubber material has the advantages that by using the nitrile rubber, the chloroprene rubber and the vinylidene fluoride / chlorotrifluor ethylene copolymer as base materials, the good oil-resistant and high temperature-resistant properties are realized; the added dicapryl phthalate and epoxidized soybean oil form a complex plasticizer, and the complex plasticizer is compounded with the epoxidized fatty acid methyl ester, so that the high temperature-resistant property and processing property are improved, and the elasticity and flexibility of the rubber are improved; by adding raw materials of aluminum phosphite, sodium antimonate, basic magnesium chloride whiskers and the like, the flame-retardant property is good; by adding raw materials of silicon boride, precipitated white carbon black, white jade powder and the like, the oil-resistant property of a product is improved, and the abrasion-resistant property of the product is enhanced.

Description

technical field [0001] The invention relates to a polymer material, in particular to a rubber material for an oil-resistant, high-temperature, and high-pressure gasket and a preparation method thereof. Background technique [0002] Nitrile rubber is a polymer formed by the emulsion copolymerization of butadiene and acrylonitrile. Nitrile rubber is known for its excellent oil resistance, and its oil resistance is second only to polysulfide rubber, acrylic rubber and fluororubber. In addition, nitrile rubber also has good wear resistance, aging resistance and air tightness, but its ozone resistance, electrical insulation and cold resistance are relatively poor, while its electrical conductivity is relatively good. Chloroprene rubber is made of chloroprene as the main raw material through homopolymerization or copolymerization of a small amount of other monomers. Such as high tensile strength, excellent heat resistance, light resistance, aging resistance, and oil resistance ar...

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Problems solved by technology

[0002] Nitrile rubber is a polymer formed by the emulsion copolymerization of butadiene and acrylonitrile. Nitrile rubber is known for its excellent oil resistance, and its oil resistance is second only to polysulfide rubber, acrylic rubber and fluororubber. In addition, nitrile rubber also has good wear resistance, aging resistance and air tightness, but its ozone resistance, electrical insulation and cold resistance are relatively poor, while its electrical conductivity is relatively good.

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