环氧树脂改性水性聚氨酯乳液的制备与性能研究  

Study on Preparation and Performance of Waterborne Polyurethane Emulsion Modified by Epoxy

作　　者：王建 罗昕 张庆新[1,2] WANG Jian;LUO Xin;ZHANG Qing-xin(Institute of Polymcr Science and Engineering,School of Chemical Engineering and Technology,Hebei University of Technolog;Key Laboratory of Micro-nano Boron Nitride Materials of Hebei Province,Hebei University of Technology,Tianjin 30013)

机构地区：[1]河北工业大学化工学院高分子材料与工程系 [2]河北工业大学河北省微纳氮化硼材料重点实验室,天津300130

出　　处：《胶体与聚合物》2018年第2期81-83,86,共4页Chinese Journal of Colloid & Polymer

基　　金：国家自然科学家基金(51573037);长江学者和创新团队发展计划(IRT_17R33);河北省自然科学基金(E2014202033);河北省高等学校科学技术研究青年基金(QN20131037)资助

摘　　要：以4,4’-二异氰酸二苯甲烷(4,4’-MDI)为硬段,聚醚二元醇(N210)为软段,并加入不同含量的环氧树脂E-51为改性剂,采用内乳化法制备了一系列环氧树脂改性的MDI型水性聚氨酯乳液。通过傅里叶变换红外光谱(FT-IR)对水性聚氨酯的结构进行了表征,并对聚氨酯涂膜的硬度、耐冲击性等性能进行了表征和研究。结果表明,当E-51的加入量为4%-6%时,乳液及涂膜的综合性能最佳。Waterborne polyurethane emulsion modified by epoxy（E-51） was prepared by emulsification process. The polyurethane prepolymer was synthesized with 4, 4＇-diphenylmethane diisocyanate（4, 4＇-MDI）as hard segments and polyether diol（N-210） as soft segments. The structure of waterborne polyurethane emulsion was analyzed by FT-IR, and performances of emulsion and the coating were characterized. The results showed that the comprehensive performance of the emulsion and coating was the best when the amount of E-51 was 4-6%.

关 键 词：水性 聚氨酯 改性 环氧树脂 

分 类 号：TQ630.4[化学工程—精细化工]