TDEC和ZDC对EPDM的硫化促进性能的影响

Study of curing promotion properties of TDEC and ZDC on EPDM

促进剂在橡胶硫化中起着非常重要的作用,其中氨基甲酸盐类作为超促进剂的一种,在工业生产中有着广泛的用途,特别适用于丁基橡胶和三元乙丙橡胶。目前氨基甲酸盐类促进剂还没有较好的替代品。研究了氨基甲酸盐类中的TDEC和ZDC两种促进剂对三元乙丙胶的硫化促进性能。研究发现,TDEC的硫化促进性能和硫化胶的力学性能远好于ZDC。TDEC和ZDC的加入远好于空白样,说明氨基甲酸盐类促进剂有效地促进了硫化,并改善了硫化胶的力学性能。

Rubber vulcanizing accelerator plays a very important role in the vulcanization of rubber. Amino acid salts as a super accelerator has a wide range of application in industrial production. Especially for IIR and EPDM, we can＇ t find a better substitute at present. The paper studies the curing promotion properties on EPDM of TDEC and ZDC. We found that the curing promotion properties and mechanical properties of TDEC were better than ZDC. TDEC and ZDC are markedly bet- ter than blank sample. Carbaminate accelerators effectively accelerate vulcanization and improve ＇mechanical properties of vulcanized rubber.