What are the functions of vulcanizing agents?

- Feb 12, 2021-

1. Any substance in the rubber compound that can accelerate the vulcanization reaction speed, shorten the vulcanization time, reduce the vulcanization temperature, reduce the amount of vulcanizing agent, and improve or improve the physical and mechanical properties of the vulcanized rubber is collectively called vulcanization accelerator, or accelerator for short. Accelerators can also improve the production efficiency of vulcanization and the quality of vulcanized rubber, make the degree of vulcanization of thick products uniform, and reduce product costs.


2. Used in neoprene rubber, chlorosulfonated polyethylene rubber, styrene-butadiene rubber, nitrile rubber, isoprene rubber, butyl rubber, bromobutyl rubber, acrylate rubber, silicone rubber and rubber-plastic combined rubber, etc. In special rubber, as an auxiliary vulcanizing agent, it can significantly improve the associated performance and heat resistance. It is suitable for high-temperature vulcanization systems. It can significantly reduce the compression set. It can also reduce the number of peroxides and prevent the rubber from being damaged during processing. Scorch, improve the adhesive strength of rubber, cord and metal.


3. Anti-scorching agent. This product is a sulfur-free vulcanizing agent, mainly used for cable rubber. It can replace all sulfur-containing vulcanizing agents such as thiazoles and thiurams and can solve the problem of copper wires and copper electrical appliances due to contact with sulfur-containing vulcanizing agents. The problem of copper sulfide pollution and blackening.