六官能度亚乙基硅氧烷的硫化性能初探  

Exploration of cure properties of hexa-functional ethylidene siloxane

作　　者：李周[1] 唐万雄[1] 潘慧铭[1] 

机构地区：[1]华南理工大学材料学院,广东省广州市510640

出　　处：《中国胶粘剂》2005年第8期9-12,共4页China Adhesives

摘　　要：通过硅氢加成反应合成一种新型醇型六官能度亚乙基硅氧烷,并以此作为交联剂,与107硅橡胶、填料、催化剂等配混,制备双组分脱醇型RTV硅橡胶。利用这种新型的交联剂来改善硅橡胶的网络拓扑结构,从而提高硅橡胶的力学强度。在相同条件下,与使用普通商用的甲基三甲氧基硅氧烷(MTMS)得到的脱醇型RTV硅橡胶相比较,其拉伸断裂强度提高了近80%。A new hexa- functional ethylidene siloxane was synthesized through hydro-silicone addition reaction.Using the compound as cross-linking agent to prepare two-component de-alcohol RTV silicone rubber mixing with 107 silicone rubber ,fillers and catalyst.The net-work topological structure of silicone rubber was improved by this new cross-linking agent,therefore,stress-strain strengh of silicone rubber was elevated.Under the same condition,comparing with general commercial MTMS,the strengh of rubber is 80% higher.

关 键 词：RTV硅橡胶 硫化性能 六官能度亚乙基硅氧烷 拉伸断裂强度 

分 类 号：TQ433.42[化学工程]