Characteristic

Rubber vulcanizing agent HVA-2, CAS NO.3006-93-7 is yellow or brown powder, specific gravity 1.44, soluble in tetrahydrofuran and hot acetone, insoluble in petroleum ether, chloroform, benzene and water, melting point 195℃ or more.

1, HVA-2 in neoprene rubber, chlorosulfonated polyethylene rubber, butadiene rubber, nitrile rubber,, isoprene rubber, butyl rubber, there, brominated butyl rubber, acrylate rubber, silicone rubber and rubber and plastic with rubber and other special rubber, as an auxiliary vulcanizing agent, can significantly improve the associated performance, improve heat resistance, suitable for high temperature vulcanization system, reduce the compression permanent deformation is very obvious, but also to reduce the It can also reduce the amount of peroxide, prevent the scorching of rubber in the process, and improve the adhesive strength of rubber and cord and metal.
2, HVA-2 as a multi-functional rubber additives, in the rubber processing process can be used as both vulcanizing agent, peroxide system can also be used as a helper vulcanizing agent, can also be used as anti-coke agent, both for general rubber, also for special rubber and rubber-plastic with system.
3、In natural rubber, with sulfur yellow, it can prevent and control the vulcanization of the original, improve heat resistance, reduce heat generation, aging resistance, improve the adhesion of rubber and cord and the modulus of vulcanized rubber. It can be used in shoulder rubber and cushion layer of load tires, which can solve the problem of shoulder hollow of slant load tires, and also can be used in large-size thick products of natural rubber and various rubber miscellaneous products.
4, HVA-2 is a sulfur-free vulcanizing agent for cable rubber, which can replace all sulfur-containing vulcanizing agents such as thiazole, thiuram, etc., solving the problem of copper conductors and copper appliances due to contact with sulfur-containing vulcanizing agents generated by the blackening of copper sulfide pollution.