促进型硅烷偶联剂的合成及其在天然橡胶/白炭黑复合材料中的应用

Synthesis of accelerated silane coupling agent and applicationin natural rubber/silica composites

利用2-巯基苯荓噻唑和3-缩水甘油醚氧丙基三乙氧基硅烷发生开环反应,生成一种新型的带有促进基团的硅烷偶联剂Si-GM,研究了不同用量的Si-GM对天然橡胶/白炭黑复合材料的门尼黏度、硫化性能、力学性能、微观形貌和耐磨性等的影响,并与用Si-69改性的白炭黑/天然橡胶复合材料的相关性能进行比较。结果表明,Si-GM改性后复合材料的加工性能、硫化速度、力学性能及耐磨性提高。

The ring-opening reaction of 2-mercaptobenzothiazole and 3-glycidyl ether oxypropyl triethoxysilane was cotilized to generate a new type of silane coupling agent Si-GM with promoting groups in this paper.The effects of different dosages of Si-GM on the processing properties,vulcanization properties,crosslinking density,mechanical properties,microscopic properties of natural rubber/silica composites were studied.The results showed that the Si-GM modified composites had improved processability and vulcanization rate,improved mechanical properties and wear resistance.