摘要
以羟基丙烯酸乳液和水性聚氨酯固化剂为成膜基料体系,配以优选助剂、颜填料和助溶剂等制备了满足车用工艺及性能要求的双组分水性聚氨酯中涂漆。考察了羟基丙烯酸乳液、水性聚氨酯固化剂树脂、n(—NCO)/n(—OH)比例及助溶剂等因素对涂膜外观及性能的影响,经配方优化后,得到了最佳的涂层效果。
A 2K waterborne polyurethane(PU)intercoat is prepared by using hydroxyl acrylic emulsion and waterborne polyurethane curing agent as the film system with the aid of additives,pigments and cosolvents.The 2K PU intercoat can meet the vehicle process and performance requirements.The effects of hydroxyl acrylic emulsion,polyurethane curing agent resin,n(-NCO)/n(-OH)ratio and cosolvents on the film appearance and properties are investigated.The best coating performance is obtained through formula optimization.
作者
张汉青
刘汉功
许飞
吴雪艳
刘明
陈力
左慧明
Zhang Hanqing;Liu Hangong;Xu Fei;Wu Xueyan;Liu Ming;Chen Li;Zuo Huiming(CNOOC Changzhou Paint and Coatings Industry Research Institute Co.,Ltd.,Changzhou,Jingsu 213016,China)
出处
《涂层与防护》
2022年第1期6-6,7-10,20,共6页
Coating and Protection
关键词
羟基丙烯酸乳液
水性聚氨酯固化剂
助剂
双组分水性聚氨酯涂料
中涂漆
hydroxyl acrylic emulsion
waterborne polyurethane curing agent
additives
2K poly-urethane waterborne coating
intercoat
