摘要： 通过不饱和脂肪酸和 N-（甲氧基甲基）丙烯酰胺（NMMA）与环氧树脂（EP-20）反应得到环氧酯，再将环氧酯与乙烯基类单体采用溶液聚合的方式共聚，制备出多重自交联水性丙烯酸树脂分散体。系统研究了环氧酯和甲基丙烯酸的含量，交联单体 NMMA、乙酰乙酸基甲基丙烯酸乙酯（AAEM）、β-明胶蛋白质、不饱和脂肪酸及制备工艺对树脂涂膜综合性能的影响。结果表明：多重自交联水性丙烯酸涂料具备优异的综合性能，表干时间为 28 min，耐水性达 14 d，硬度和附着力分别为 3H和 0级，还表现出良好的耐溶剂性。
关键词:
自交联,
环氧酯,
蛋白质,
水性丙烯酸树脂,
耐水性
Abstract: The multiple self-crosslinking waterborne acrylic resin dispersion wasprepared by solution polymerization through epoxy ester and vinyl monomer. The used epoxyester was obtained by the reaction of epoxy resin（EP-20）with unsaturated fatty acid and N-methoxy methacrylamide（NMMA）. It was systematically studied for the comprehensiveproperties of the resin film that was influenced by the proportion of epoxy ester and methacrylicacid，crosslinking monomer NMMA，acetoacetoxyethyl methacrylate（AAEM），β -gelatin protein，unsaturated fatty acid or preparation process. The results showed that multiple self-crosslinking waterborne acrylic coatings indicated excellent comprehensive properties，the surface drying time was 28 min，the water resistance was 14 d，the hardness and adhesion were 3H and 0 grade，respectively，and it also exhibited good solvent resistance.
Key words:
self-crosslinking,
epoxy ester,
protein,
waterborne acrylic resin,
water resistance
中图分类号:
李玉, 袁东明, 吴琼, 等. 多重自交联水性丙烯酸树脂分散体的制备及性能研究[J]. 涂料工业, 2023, 53(7): 52-60.
LI Y, YUAN D M, WU Q, et al. Preparation and Properties of Multiple Self-crosslinking Waterborne Acrylic Resin Dispersion[J]. Paint & Coatings Industry, 2023, 53(7): 52-60.