环氧树脂改性水性聚氨酯的合成与性能研究  

Study on Syntheses and Properties of Water-borne Polyurethane Modified by Epoxy Resin

作　　者：王春会[1] 李树材[1] 

机构地区：[1]天津科技大学材料科学与化学工程学院,300222

出　　处：《聚氨酯工业》2005年第6期20-23,共4页Polyurethane Industry

基　　金：天津市科技攻关计划培育项目(项目编号:05YFGPGX06400)

摘　　要：采用环氧树脂(EP)、聚酯二元醇、异佛尔酮二异氰酸酯(IPDI)、二羟甲基丙酸(DMPA)等制备了环氧树脂改性水性聚氨酯.实验选择环氧树脂E-51为改性剂,讨论了EP含量、NCO/OH比值、DMPA含量对体系耐水性、粘接性及力学性能的影响.实验结果表明:EP质量分数为6%～8%、NCO/OH比值为1.3～1.4、DMPA质量分数为6%时,水性聚氨酯样品的性能较好.The water-borne polyurethane was prepared by the reaction of epoxy resin with polyether diol, dimethylol propionic acid （DMPA）, isophorone diisocyanate （IPDI）. It was found that the content of epoxy resin and DMPA, and the value of NCO/OH effect water-resistance, adhesive strength and tensile strength of the water-borne polyurethane. When the content of epoxy resin and DMPA was respectively chosen to be 6% - 8% and 6%, the ratio NCO/OH was 1.3 - 1.4, the properties of water-borne polyurethane modified by epoxy resin are good.

关 键 词：水性聚氨酯 环氧树脂 改性 耐水性 粘接性 力学性能 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]