基于水性封闭型异氰酸酯固化剂的水性丙烯酸烤漆的制备及性能研究

摘要

A selfmade waterborne blocked isocyanate curing agent was used to modify waterborne acrylic amino baking paint,which solved the problem of poor film flexibility. The curing mechanism of waterborne blocked isocyanate curing agent,choice of blocking agent,and acid value of waterborne blocked curing agent were discussed respectively. The ratio of composite curing agents and properties of the final coating were studied.%为解决水性丙烯酸-氨基烤漆柔韧性不佳的问题,采用自制的水性封闭型异氰酸酯固化剂对其进行改性.分别对水性封闭异氰酸酯固化剂的作用机理、封闭剂选择、水性封闭固化剂的酸值进行探讨,并对复合固化剂的配比以及最终涂层的性能进行了研究.