Disclosed is an aqueous composition for surface coating, including: a main ingredient comprising a first compound having at least two functional groups selected from the group consisting of a carboxyl group, a hydroxyl group, an amino group and combinations thereof, per molecule; a curing agent comprising a second compound having at least two functional groups selected from the group consisting of an aziridine group, an isocyanate group, a carbodiimide group and combinations thereof, per molecule; and an aqueous solvent. Further, an automotive sheet using the aqueous composition for surface coating is disclosed.
                            本发明公开了一种用于表面涂层的
水性组合物,包括:主要成分,其中第一种化合物每个分子至少具有两个官能团,这两个官能团选自由羧基、羟基、
氨基及其组合组成的组;固化剂,其中第二种化合物每个分子至少具有两个官能团,这两个官能团选自由
氮丙啶基、
异氰酸酯基、碳化二
亚胺基及其组合组成的组;以及
水性溶剂。此外,还公开了一种使用该
水性组合物进行表面涂层的汽车板材。