作　　者： ; ; ; ; ; ; (李会宁）;

机构地区： 华南理工大学化学与化工学院

出　　处： 《现代涂料与涂装》 2012年第1期10-15,28,共7页

摘　　要： 介绍了聚氨酯亲水改性的4种方法,即非离子、阳离子、阴离子和混合改性。在亲水改性基础之上又讨论了封闭型水性异氰酸酯的封闭机理、封闭剂种类及特点。阐述了水性聚氨酯固化剂在双组分涂料中的应用问题及发展趋势。 Four kinds of hydrophilic modification methods of polyurethane, namely the nonionic modification, cationic modification, anionic modification and mixed modification methods were introduced. The block mechanism, blocker type and properties of blocked isocyanates were discussed based on the hydrophilic modification. The application problems and development trend of waterborne polyurethane curing agent in two components coating were discussed.

关 键 词： 水性聚氨酯 异氰酸酯 改性 封闭剂

领　　域： [化学工程]