Composition of high-strength and cold-resistant butadiene-acrylonitrile rubber and butadiene rubber

Abstract

The invention discloses a composition of high-strength and cold-resistant butadiene-acrylonitrile rubber and butadiene rubber. The composition comprises the raw materials in parts by weight: 60-70 parts by weight of butadiene-acrylonitrile rubber, 20-40 parts by weight of butadiene rubber, 2-3 parts by weight of sulphur, 2-4 parts by weight of zinc oxide, 0.8-1.2 parts by weight of anti-aging agent OPPD, 0.4-1.3 parts by weight of anti-aging agent MB, 3-7 parts by weight of stearic acid, 50-70 parts by weight of white carbon black, 20-30 parts by weight of carbon black N330, 0.7-1 part by weight of dioctyl adipate, 0.8-1.2 parts by weight of accelerant DBX, 0.2-0.4 part by weight of benzyl amine, 0.8-1.2 parts by weight of gamma-aminopropyl triethoxysilane, 1.1-1.3 parts by weight of processing agent WB212, 3-4 parts by weight of light calcium carbonate and 20-40 parts by weight of mixed gas carbon black. In the invention, the composition of high-strength and cold-resistant butadiene-acrylonitrile rubber and butadiene rubber is excellent in cold resistance, good in wear resistance, and longer in service life.

Description

technical field [0001] The invention relates to the technical field of nitrile rubber, in particular to a composition of high-strength cold-resistant nitrile rubber and butadiene rubber. Background technique [0002] Sealing materials refer to materials that can withstand joint displacement to achieve airtightness and watertightness and are embedded in building joints. Early sealing materials are mainly fabrics, mineral fibers or felts. With the development of industrial technology, in order to meet the increasingly complex and diverse requirements of hydraulic and pneumatic seals, sealing materials have also developed rapidly, with more and more types and continuous improvement in physical and chemical properties. [0003] Existing seal materials include metallic materials, such as aluminum, lead, indium, stainless steel, etc., and non-metallic materials, such as rubber, plastic, ceramics, graphite, etc., but currently the most used non-metallic rubber materials, excellent ...

AI Technical Summary

Problems solved by technology

[0003] Existing seal materials include metallic materials, such as aluminum, lead, indium, stainless steel, etc., and non-metallic materials, such as rubber, plastic, ceramics, graphite, etc., but currently the most used non-metallic rubber materials, excellent sealing performance Inferiority depends to a large extent on the performance of the sealing material. With the rapid development of the existing industry, the existing rubber materials are increasingly unable to meet the demand. How to prepare a sealing material with excellent cold resistance, good wear resistance and long service life? Long rubber materials become a technical problem that needs to be solved at present