摘要
将聚甲基三乙氧基硅烷(PTS)与一种合成的含磷硅烷偶联剂以一定配比进行反应,所得改性剂添加到双酚A环氧树脂E51/酚醛树脂固化体系中,对改性环氧树脂固化产物的玻璃化转变温度、热失重、冲击强度、拉伸强度、极限氧指数进行了测试,并对固化产物的表面形貌进行了SEM观察。结果表明,在保持拉伸强度基本不变的同时,改性环氧树脂固化物的玻璃化转变温度、高温热稳定性、冲击强度、极限氧指数均有不同程度提高,使改性环氧树脂的性能得到综合提升。
A kind of modifier was prepared via the hydrolysis of phosphorus-containing silicon coupling agent and polymethyltriethoxysilane, which was used in an epoxy/novolac curing system. Determinations of differential scanning calorimetry, thermogravimetric analysis, scanning electron microscopy, as well as limited oxygen index, impact and tensile testing were carried out to characterize the cured products. It showed that the modified epoxy resin possessed higher glass transition temperatures, impact strength, limited oxygen index, and better thermal stability.
出处
《中国塑料》
CAS
CSCD
北大核心
2009年第10期73-77,共5页
China Plastics
关键词
环氧树脂
有机硅
有机磷
耐热性
增韧
阻燃
epoxy resin
organosilicon
organophosphorus
heat resistance
toughness
flameretardancy
