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%.
作者
王建
罗昕
张庆新
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)
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
关键词
水性
聚氨酯
改性
环氧树脂
Aqueous
Polyurethane
Modification
Epoxy
