环氧改性水性聚氨酯的性能研究  

Study on the Properties of Waterborne Polyurethane Modified by Epoxy Resin

作　　者：王焕[1] 王萃萃[1] 张海龙[1] 许戈文[1] 

机构地区：[1]安徽大学化学化工学院安徽省绿色高分子材料重点实验室,合肥230039

出　　处：《胶体与聚合物》2011年第3期99-101,共3页Chinese Journal of Colloid & Polymer

摘　　要：选用环氧树脂(E-51)为改性剂,以异佛尔酮二异氰酸酯(IPDI)、聚醚多元醇(N220)、聚酯多元醇(POL-220)、二羟甲基丙酸(DMPA)等为主要原料合成了水性聚氨酯乳液,研究了异氰酸酯基与羟基摩尔比(n-NCO/n-OH)、环氧树脂加入量、三羟甲基丙烷(TMP)加入量对乳液及膜性能的影响。结果表明,当n-NCO/n-OH为6,E-51含量为7wt%,TMP添加量为0.7wt%,获得综合性能最好的环氧改性水性聚氨酯。Series of waterborne polyurethane latex was prepared with isophorone diisocyanate （IPDI）, polyether polyol （N220）, polyester polyol （POL-220）, epoxy resin （E-51） and dimethyopropionic acid （DMPA） as the main materials. The influence of the molar ratio of isocyanate/hydroxyl （n-NCO/n-OH）, amount of epoxy resin and trimethylolpropane （TMP） on properties of waterborne polyurethane was studied. The results showed that the modified waterborne polyurethane had ideal comprehensive properties when the molar ratio ofn-NCO/n-OH was 6, the content orE-51 was 7 wt % and TMP content was 0.7wt%.

关 键 词：水性聚氨酯 环氧树脂 耐水性 力学性能 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]