Modified acrylonitrile butadiene packing material and preparation method thereof

Abstract

The modified nitrile butadiene rubber sealing material and its preparation process belong to the field of rubber polymer material technology. The modified nitrile butadiene sealing material is prepared with nitrile butadiene rubber, carbon black, zinc oxide, stearic acid, antiager 2, 2, 4-trimethyl-1, 2-dihydro quinoline, dioctyl sebacate, sulfur and promoter paraffin in certain weight proportion, and through compounding material, banburying, roll mixing, vulcanizing and other technological steps. It is applied in making rubber parts in apparatus for storing, transporting, loading and unloading methane, liquefied gas and other fuel, and automobile engine. It has high elasticity, high heat stability, high oil resistance and other advantages.

Description

1. Technical field

[0001] A modified nitrile rubber sealing material and a preparation method thereof belong to the technical field of preparation of rubber polymer composite materials. It is a modified nitrile rubber sealing material with nitrile rubber as the main carrier. The product formula and preparation method are determined by adding different rubber additives and improving the process flow and process parameters. 2. Background technology

[0002] As a new type of energy fuel, dimethyl ether can replace liquefied petroleum gas as domestic fuel, and can also be used as vehicle fuel. When dimethyl ether is used, rubber parts in existing liquefied gas equipment and automotive fuel supply systems will swell, soften, crack, and then fail. Nitrile rubber is a polymer formed by the emulsion copolymerization of butadiene and acrylonitrile. Nitrile rubber is famous for its excellent oil resistance, which is second only to polysulfide rubber, acrylic rubber and fluororubber. ...