摘要
经烯丙基共聚醚和含氢聚硅氧烷的硅氢化反应,在氯铂酸催化剂作用下合成了硅-碳型聚氨酯软泡有机硅匀泡剂。确定其最佳结构组成为二甲基硅氧烷链节数m=80,含氢硅氧烷链节数n=9,三种不同烯丙基共聚醚PE-A、PE-B及PE-C摩尔分数分别为25%,45%及30%。结果表明产品性能、发泡效果与美国L-580相近。
The Si-C organosilicon foam stabilizers are synthesized by hydrosilation of allyl block co-polyether and polyhydrosiloxanes using chloroplatinic acid as a catalyst. The best structure and component are dimethyl siloxane chain m = 80, hydfic-siloxane chain n=9, and three kinds of allyl block co-polyether, of which PE-A is 25%, PE-B45% and PE-C 30%. The foam stabilizer has reached the same level as L-580.
出处
《化工科技》
CAS
2006年第4期25-27,共3页
Science & Technology in Chemical Industry
基金
陕西省教育厅专项科研资助项目(05JK190)
渭南师范学院重点科研计划项目(04YKF011)
关键词
聚氨酯
有机硅匀泡剂
组成
烯丙基共聚醚
Polyurethane foams
Organosilicon foam stabilizers
Component
Allyl block co-polyether
