高耐水性环保型聚氨酯树脂的合成与应用研究  

Research on Synthesis and Application of Environmentally Friendly Polyurethane Resin with High Water Resistance

作　　者：赵忠强 王亚鑫 Zhao ZhongQiang;Wang Yaxin(CNOOC Energy Technology&Services-Oil Production Services Co.,Ltd.,Tianjin 300450,China;CNOOC Changzhou Paint&Coatings Industry Research Institute Co.,Ltd.,Changzhou,Jiangsu 213016,China)

机构地区：[1]中海油能源发展股份有限公司采油服务分公司,天津300450 [2]中海油常州涂料化工研究院有限公司,江苏常州213016

出　　处：《涂层与防护》2024年第5期45-49,共5页Coating and Protection

摘　　要：为解决水性聚氨酯耐水性能差的问题,研制了一种高耐水性的环保型聚氨酯。研究了环氧树脂、异氰酸酯、小分子扩链剂、亲水单体及水性异氰酸酯固化剂类型对水性聚氨酯性能的影响。结果表明,选择环氧树脂(E51)作为改性剂、二环己基甲烷二异氰酸酯(HMDI)为异氰酸酯单体、1,6-己二醇(HDO)为扩链剂、二羟甲基丁酸(DMBA)为亲水单体、水性异氰酸酯固化剂(XP2655)为固化剂,获得的水性聚氨酯涂层展现出最佳的性能。通过各项性能测试发现,合成的水性聚氨酯具有低VOC含量、优异的耐水性及其他物理机械性能。To solve the problem of poor water resistance of waterborne polyurethane,an environmentally friendly polyurethane with high water resistance has been developed.The effects of epoxy resin,isocyanate,small molecule chain extender,hydrophilic monomer and waterborne isocyanate curing agent types on the properties of waterborne polyurethane were studied.The results showed that the waterborne polyurethane coating film prepared by selecting epoxy resin(E51)as the modifier,dicyclohexylmethane diisocyanate(HMDI)as the isocyanate,1,6-hexanediol(HDO)as the chain extender,dimethylolbutanoic acid(DMBA)as the hydrophilic monomer and waterborne isocyanate curing agent(XP2655)as the curing agent had the best performance.Through various performance tests,it was found that the synthesized waterborne polyurethane had low VOC content,excellent water resistance and other physical and mechanical properties.

关 键 词：环氧树脂 二羟甲基丁酸 高耐水性 低VOC含量 

分 类 号：TQ630[化学工程—精细化工]