Vulcanization of rubber chemicals caused from natural rubber. After more than 80 years of research, until the 20th century, 20-30 's, with the basic kinds of accelerant 2-Mercapto benzo thiazole and sulfonamide derivatives as well as the industrialization of benzene amine antioxidant, rubber chemicals formed system. Currently, the rubber in a period of stability, vulcanization Accelerator antioxidant of the two major classes of organic additives and production of about 4% of living glue consumption. Rubber chemicals production is concentrated in foreign countries, Federal Germany's Bayer AG and United States Monsanto Company is the leading manufacturer. China rubber agents (organic additive) production started in 1952.
H,R for organic groups r ′ in; or r ', and r are organic groups; r ', r ring
By promote agent m or its sodium salt, also can by promote agent DM, and ring has been Amine (product for promote agent CZ), and two ring has been Amine (product for promote agent DZ), and II different c Amine (product for promote agent DIBS), and did imidazoline (product for promote agent NOBS), and tert-d Amine (product for NS), through different of process business have. They curing started slowly, but curing speed, known as rapid efficiency enhancers, mainly used in the production of large rubber products such as tires. In conventional formula, the amount only to promote agent m and DM two-thirds (promoter m and DM 1~2). In the so-called "half-Vulcanized" system (that is, low/high Accelerator combined with sulfur), 3~5 for the amount (and 0.2~0.4 sulphur) can obtain excellent processing safety and improve the properties of Vulcanized rubber.