硅树脂对双组分室温硫化硅橡胶耐热性能的影响  

Effects of Silicone Resin on Heat Resistance of Two-component Room Temperature Vulcanized Silicone Rubber

作　　者：赵妍[1] 杨凤[1,2] 王娜[1,2] 姜威[1] 方庆红[1,2] 

机构地区：[1]沈阳化工大学材料科学与工程学院,辽宁沈阳110142 [2]辽宁省高分子应用高校重点实验室,辽宁沈阳110142

出　　处：《橡胶工业》2014年第6期330-334,共5页China Rubber Industry

基　　金：国家自然科学基金资助项目(51173110;51103086);辽宁省自然科学基金资助项目(201102173)

摘　　要：研究硅树脂用量对双组分室温硫化硅橡胶耐热性能的影响。结果表明:随着硅树脂用量的增大,硅橡胶的邵尔A型硬度、拉伸强度和拉断伸长率呈增大趋势,耐热性能先提高后降低;当硅树脂用量为8份时,硅橡胶的拉伸性能和耐老化性能最佳;当硅树脂用量为6份时,硅橡胶的耐热性能最佳。The effect of addition level of silicone resin on the heat resistance of two-component room temperature vulcanized silicone rubber was investigated. The results showed that, as the addition level of silicone resin increased, the Shore A hardness, tensile strength and elongation at break of sili- cone rubber tended to increase, and the heat resistance increased at first and then decreased. When the addition level of silicone resin was 8 phr, the best tensile property and aging property of silicone rubber were obtained. When the addition level of silicone resin was 6 phr, the best heat resistance of silicone rubber was achieved.

关 键 词：双组分室温硫化硅橡胶 硅树脂 耐热性能 耐老化性能 热重分析 

分 类 号：TQ333.93[化学工程—橡胶工业] TQ330.387