摘要
采用不同偶联剂对M-5气相白炭黑进行了表面改性,以增强白炭黑与硅橡胶的相容性。对处理前后的白炭黑进行了FT-IR分析,对比分析了偶联剂的类型和用量对气相白炭黑表面性能的影响,测试了室温硫化硅橡胶添加白炭黑后的力学性能。红外测试结果表明:偶联剂分子接枝到了白炭黑表面。表面改性效果最好的是乙烯基三甲氧基硅烷(A171),白炭黑用量15%时硅橡胶拉伸强度最大可达到1.5MPa,由其配制的胶粘剂对铝-硅橡胶板的粘接强度达到1.3MPa。
M-5 fumed silica was surface modified by diffferent silane coupling agent to enhance the compatibility of silicone rubber. The change of surface Status about fumed silica before and after treatment was characterized by FT-IR. The kind and amount of silane coupling agent affect surface performance of fumed silica were compared and analysised, the mechanical properties of room temperature vulcanizable （RTV） silicone rubber filled by modified fumed silica was also tested. The FT-IR results show that silane coupling agent molecular is grafted on the surface of fumed silica, the best effect treatment of silane coupling agent is vinyhrimethoxysilane, the tensile strength of silicone rubber which blend 15% fumed silica is 1.5MPa, the adhesive strength reaches 1.3MPa.
出处
《表面技术》
EI
CAS
CSCD
2008年第5期21-23,70,共4页
Surface Technology
基金
江西省材料科学与工程研究中心课题(ZX200601004)
