(3) Formulation design 1 system The content of double bonds after hydrogenation is greatly reduced, so it is preferred to use peroxide crosslinking. If the degree of unsaturation is more than 5%, sulfur vulcanization can also be used. The heat resistance of peroxide vulcanization is better. The accelerator may be HVA-2 (styryl maleimide) or TAIC […]

Application Environment of Hydrogenated Nitrile Rubber I Nitrile rubber (HNBR), also known as high-saturated nitrile rubber, is a modified product of hydrogenation of nitrile rubber. Since most of the butadiene segments (95% to 99%) are hydrogenated, only a small amount (1% to 5%) is retained for crosslinking, so it has the oil resistance and resistance […]

Conventional synthetic rubbers are generally produced by liquid phase polymerization (including homopolymerization and copolymerization) by dissolving or dispersing a monomer in a solvent or water for polymerization. The olefin plastic can be a gas phase polymerization method. Since the 1990s, U.S. Union Carbide Corporation has transplanted this technology into EPDM rubber with olefinic monomers as […]

Medium vinyl polybutadiene is one of the polybutadiene rubbers developed in the 1970s. It was originally developed by the British International Synthetic Rubber Company (ISR) and officially put into production in 1973 under the trade name Intollene50. The vinyl polybutadiene rubber produced in the industry was also successfully developed by Yanshan Petrochemical Company in the […]