配合剂对MVQ硫化胶性能的影响

Effect of Ingredients on Properties of MVQ Vulcanizate

研究了多元醇（１，２丙二醇、一缩二乙二醇、丙三醇）和硅烷偶联剂Ａ１５１等配合剂对甲基乙烯基硅橡胶（ＭＶＱ）硫化胶性能的影响。试验结果表明，１，２丙二醇在胶料中起结构控制剂的作用；在胶料中同时加入少量１，２丙二醇和偶联剂Ａ１５１，可以获得低模量、高扯断伸长率的硅橡胶材料；结构控制剂ＤＳ用量以４＃气相法白炭黑用量的２０％为宜；丙三醇可改善ＭＶＱ硫化胶的补强效果。

The effect of the ingredients,such as polyols (1,2 propyleneglycol,diglycol and propylenetriol) and silane coupling agent A151 on the properties of MVQ vulcanizate was investigated.The test results showed that 1,2 propyleneglycol acted as a structure controlling agent;the addition of small amount of 1,2 propyleneglycol and coupling agent A151 to the compound resulted in a silicone rubber with low modulus and high elongation at break;the suitable level of structure controlling agent DS was equal to 20% loading level of 4 # gas silica;the propylenetriol could improve reinforcement of MVQ vulcanizate.