自交联硅丙乳液聚合稳定性的研究  

A Study of Polymerization Stability of Self-Crosslinked Silicone-Acrylate Emulsion

作　　者：陈忠奎[1] 范慧俐[1] 康立训[1] 郑延军[1] 

机构地区：[1]北京科技大学化学系,北京100083

出　　处：《化学建材》2004年第6期5-7,共3页Chemical Materials for Construction

摘　　要：研究了以反应性乳化剂制备高硅含量自交联硅丙乳液的聚合工艺,结果表明:以反应性乳化剂代替普通乳化剂,采用后交联技术结合种子乳液法,分步控温,并加入丙二醇作为水解抑制剂,可以显著提高自交联硅丙乳液的聚合稳定性,获得高硅含量的自交联硅丙乳液。Polymerization technology of self-crosslinked silicone-acrylate emulsion with high-organosilicone content pre-pared by reactive emulsifier was studied. Testing results showed that polymerization stability of self-crosslinked silicone-acrylate emulsion could be greatly improved and self-crosslinked silicone-acrylate emulsion with high organosiliconecontent could be prepared using reactive emulsifier in stead of ordinary emulsifier, by way of post-crosslinking technologycombined with seed emulsion polymerization, controlling temperature by steps and adding propylene glycol as hydrolyticdecomposition restrainer.

关 键 词：自交联 硅丙乳液 聚合稳定性 反应性乳化剂 交联技术 聚合工艺 丙二醇 控温 

分 类 号：TU561[建筑科学—建筑技术科学] TQ633[化学工程—精细化工]