Vulcanizing agent for hydraulic seals

Natural rubber and synthetic rubber are required to be mixed with curing agent for curing, curing agent can make rubber molecular chain crosslinking rubber vulcanized only after the valuable use value, greatly enhance the mechanical properties.

Hydraulic sealing agent vulcanization agent divided into two categories of inorganic and organic. The former category of sulfur, sulfur monoxide, selenium and tellurium. The latter group has sulfur-containing accelerators (such as accelerator TMTD), organic peroxides (such as benzoyl peroxide), quinone oxime compounds, polysulfide polymers, urethane, maleimide derivatives Wait.

The most common use of hydraulic seals is elemental sulfur and sulfur-containing compounds.

Vulcanization agent PDM, the chemical name of N, N - m-phenylene bismaleimide. The product is a multi-functional rubber additives in the rubber processing process can be used as curing agent can also be used as a peroxide system to help curing agent, but also as anti-scorching agent and tackifier, that is suitable for general purpose Rubber, also applies to special rubber and rubber and plastic system.

Hydraulic sealant Vulcanization agent Solubility: soluble in tetrahydrofuran and hot acetone, insoluble in petroleum ether, methylene chloride, magnesium chloride, benzene and water Main use of anti-coke agent for chlorosulfonated polyethylene rubber, with oxidation Magnesium, pentaerythritol and double five methylthiotetramethylene sulfide thiuram (TRA) with, as anti-scorching agent; to improve the compression deformation and calcium hydroxide and diphenylethylenediamine with the composition of maleimide curing system, The amount of 2-4phr, can greatly reduce the compression set to improve the temperature performance.