Thiuram type accelerator is a very important accelerator. It includes thiuram disulfide, thiuram disulfide and thiuram polysulfide. Among them, thiuram disulfide and thiuram polysulfide can release active sulfur or sulfur-containing free radicals at standard curing temperature, so they can be used as curing agents.

Properties: it is used as a vulcanization accelerator and has the general structural formula of. Including thiuram disulfide, thiuram disulfide and thiuram polysulfide. It is an acidic super accelerator with an activity between dithiocarbamate and thiazole accelerators. It is generally used as a second accelerator to improve the curing speed and degree of thiazole and sulfosamide accelerators. Thiuram disulfide and polysulfide can release active sulfur at standard curing temperature and can be used as sulfur donor in sulfur free curing system. The representative varieties include tetramethyl thiuram disulfide (TMTM), tetramethyl thiuram disulfide (TMTD), tetraethyl thiuram disulfide (TETD), bis (1,5-pentylene) thiuram tetrasulfide (dptt), etc.

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