What Are The Properties Of Thiuram Accelerators?

Used as a vulcanization accelerator, it is a thiuram derivative with a general structural formula (where R, R' are alkyl, aryl, cycloalkyl, etc.; x=1~6). Including thiuram monosulfide, thiuram disulfide and thiuram polysulfide. It is an acidic super accelerator, its activity is between dithiocarbamate and thiazole accelerators, it is generally used as the second accelerator, and it can improve the vulcanization speed and degree of vulcanization of thiazole and sulfenamide accelerators . Thiuram disulfide and polysulfide can release active sulfur at standard vulcanization temperature, and can be used in sulfur-free vulcanization system as a sulfur donor. Representative varieties include tetramethylthiuram monosulfide (TMTM), tetramethylthiuram disulfide (TMTD), tetraethylthiuram disulfide (TETD), bis(1,5-pentamethylene tetrasulfide) base) Thiuram (DPTT) et al.