| Si-C型聚醚改性聚硅氧烷的合成及其匀泡性能研究 |
| |
| 引用本文： | 李雅丽,刘娟,王香爱.Si-C型聚醚改性聚硅氧烷的合成及其匀泡性能研究[J].西安石油大学学报(自然科学版),2006,21(6):53-55. |
| |
| 作者姓名： | 李雅丽 刘娟 王香爱 |
| |
| 作者单位： | 渭南师范学院,化学化工系,陕西,渭南,714000 |
| |
| 基金项目： | 陕西省教育厅资助项目;渭南师范学院校科研和教改项目 |
| |
| 摘 要： | 在铂系催化剂作用下,以体系总质量10%的一缩丙二醇为溶剂,使烯丙基聚醚和含氢硅油进行硅氢加成反应,合成Si-C型聚醚改性聚硅氧烷,最佳硅油与聚醚物质的量比为1∶1.15.比较了Speier催化剂和Karstedt催化剂在硅氢加成反应中的催化活性,表明使用络合型Karstedt催化剂后,催化剂铂用量减少至10 mg/kg.产品应用到软质聚氨酯泡沫塑料制备中,匀泡性能与美国L-580相近.
|
| 关 键 词： | Si-C型聚醚改性聚硅氧烷 合成工艺 硅氢加成反应 Karstedt催化剂 |
| 文章编号： | 1673-064X(2006)006-0053-03 |
| 修稿时间： | 2006年6月20日 |
Synthesis of Si-C siloxane-oxyalkylene copolymer and study on its foam stability to soft polyurethane foam plastics |
| |
| LI Ya-li,LIU Juan,WANG Xiang-ai.Synthesis of Si-C siloxane-oxyalkylene copolymer and study on its foam stability to soft polyurethane foam plastics[J].Journal of Xian Shiyou University,2006,21(6):53-55. |
| |
| Authors: | LI Ya-li LIU Juan WANG Xiang-ai |
| |
| Abstract: | Si-C siloxane-oxyalkylene copolymer is synthesized by the hydrosilation of allylpolyether and polyhydrosiloxanes using Pt as catalyst and dipropylene glycol as solvent,whose mass is 10% of the whole system mass.The optimal mole ratio of siloxane to polyether is 1∶1.15.The catalytic activities of Speier catalyst and Karstedt catalyst in the hydrosilation are compared and it is shown that after complex-type Karstedt catalyst is used,the amount of catalyst Pt is reduced to 10 mg/kg.As the stabilizer of soft polyurethane foam plastics,the property of the synthesized Si-C siloxane-oxyalkylene copolymer approximates to that of L-580 of USA. |
| |
| Keywords: | Si-C siloxane-oxyalkylene copolymer synthesis technology hydrosilation Karstedt catalyst |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
