精细与专用化学品
精細與專用化學品
정세여전용화학품
FINE AND SPECIALTY CHEMICALS
2011年
12期
22-27
,共6页
熊联明%帅水平%陈小飞%芦静%向顺成
熊聯明%帥水平%陳小飛%蘆靜%嚮順成
웅련명%수수평%진소비%호정%향순성
正硅酸乙酯%环氧树脂%改性
正硅痠乙酯%環氧樹脂%改性
정규산을지%배양수지%개성
tetraethyl orthosilicate%epoxy resins%modification
正硅酸乙酯水解可得有机硅聚合物,但产物分子量不高,成膜性差。用环氧树脂对其改性,制得物的涂膜成膜性优良,且大大缩短固化时间。研究了水解温度与时间,催化剂种类,溶剂用量和环氧树脂用量、反应温度与时间对改性物的影响。结果表明,水解温度50℃,时间3h,硫酸催化,乙醇用量35%,环氧树脂用量20%～50%,反应温度50℃,反应时间1h,涂膜性能优良。
正硅痠乙酯水解可得有機硅聚閤物,但產物分子量不高,成膜性差。用環氧樹脂對其改性,製得物的塗膜成膜性優良,且大大縮短固化時間。研究瞭水解溫度與時間,催化劑種類,溶劑用量和環氧樹脂用量、反應溫度與時間對改性物的影響。結果錶明,水解溫度50℃,時間3h,硫痠催化,乙醇用量35%,環氧樹脂用量20%～50%,反應溫度50℃,反應時間1h,塗膜性能優良。
정규산을지수해가득유궤규취합물,단산물분자량불고,성막성차。용배양수지대기개성,제득물적도막성막성우량,차대대축단고화시간。연구료수해온도여시간,최화제충류,용제용량화배양수지용량、반응온도여시간대개성물적영향。결과표명,수해온도50℃,시간3h,류산최화,을순용량35%,배양수지용량20%～50%,반응온도50℃,반응시간1h,도막성능우량。
Silicone polymer was obtained by hydrolysis of tetraethyl orthosilicate,but silicone polymer have low molecular weight and poor film.Silicone polymer modified by epoxy resin can improve film forming property and reduce the curing time.In this paper,the influence of the hydrolysis temperature and time,type of catalyst, amount of solvent and epoxy resin,reaction temperature and time on the properties of modified polymer was researched. The result shows that with the hydrolysis temperature of 50℃,hydrolysis time 3 hours,sulfuric acid catalyst,w（ethanol）=35%,w（epoxy resin）=20%～50%,reaction temperature 50℃,reaction time 1hours, the film have excellent performance.
