双重改性水性聚氨酯分散体的合成及应用  

Synthesis and Application of Double Modified Waterborne Polyurethane Dispersion

作　　者：郭玉[1,2] 朱强 刘志刚 刘顺 陆嘉星[2] 

机构地区：[1]上海展辰涂料有限公司,上海201700 [2]华东师范大学化学系,上海200062

出　　处：《聚氨酯工业》2014年第2期43-45,共3页Polyurethane Industry

摘　　要：以异氰酸酯、聚己内酯二元醇、环氧树脂E-51、二羟甲基丙酸和蓖麻油为主要原料制备了环氧树脂和蓖麻油双重改性的水性聚氨酯分散体。结果表明，当NCO与OH摩尔比为1.3、DMPA添加质量分数为4％～6％、三乙胺中和度为80％时，所得涂膜铅笔硬度H，耐水性72 h无异常，满足了水性木器面漆的性能要求。The double modified waterborne polyurethane dispersion was prepared by isocyanate, polycaprolac-tone diols, epoxy resin E-51 and castor oil. The results showed that the waterborne polyurethane film pencil hard-ness was H and water resistance was 72 h without exception when NCO/OH molar ratio, the content of DMPA and the neutralization degree of triethylamine was 1？3, 4% ~6% and 80%, respectively.

关 键 词：水性聚氨酯分散体 环氧树脂 蓖麻油 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]