摘要
通过含氢聚硅氧烷和烯丙基共聚醚硅氢化反应,研究了Si-C型软质聚氨酯匀泡剂的结构组成。结果表明:当二甲基硅氧烷链节数m=80,含氢硅氧烷链节数n=9,烯丙基共聚醚CH2=CHCH2 O(C2 H4 O)10(C3H6O)15 OH (PE-A)、CH2=CHCH2 O(C2 H4O)30(C3 H6O)40 OH (PE-B)及CH2=CHCH2O(C2H4O)5(C3H6O)30OH(PE-C)摩尔分数分别为25％,45％及30％时,所得匀泡剂性能、发泡效果与美国L-580相近。
Abstract： The structure and component of Si-C soft polyurethane foam stabilizers were studied by means of hydrosilation between polyhydrosiloxanes and allyl block copolyether, and the results showed that when dimethyl siloxane chain m = 80, hydricsiloxane chain n = 9, and the molar fraction of three kinds of units, i. e. , CH2CHCH2O（C2H4O）10（C3H6O）15OH （ PE-A ）, CH2CHCH2O（C2H4O）30 （C3 H6O）40OH（PE-B） and CH2CHCH2O（C2H4O）5 （C3H6O）30 OH（PE-C） in the allyl block copolyether reached up to 25%, 45% and 30%, respectively. The performance and the foaming effect in the foam stabilizer are close to that of L-580.
出处
《精细石油化工》
CAS
CSCD
北大核心
2007年第2期56-58,共3页
Speciality Petrochemicals
基金
渭南师范学院重点科研资助项目[07YKF010]
陕西省教育厅专项科研资助项目[05JK190]。
关键词
聚氨酯匀泡剂
烯丙基共聚醚
聚硅氧烷
polyurethane foams stabilizers
polyhydrosiloxanes
allyl block co-polyether
