Preparation method of water-based light-cured epoxy acrylic resin

The invention discloses a preparation method of water-based light-cured epoxy acrylic resin. The method comprises the following steps: synthesizing a polyester prepolymer containing carboxyl at the tail end, reacting the polyester prepolymer with standard bisphenol A epoxy resin, an epoxy acrylate monomer and acid anhydride respectively, and finally performing neutralizing and dispersing into water to obtain the water-based light-cured epoxy acrylic resin. The preparation method is simple and easy to implement and high in feasibility, the prepared water-based light-cured epoxy acrylic resin isexcellent in hydrolysis resistance and good in stability, and a prepared cured film is good in hardness, wear resistance and adhesive force. 本发明公开一种水性光固化环氧丙烯酸树脂的制备方法，该方法首先合成末端含有羧基的聚酯预聚物，然后分别与标准双酚A环氧树脂、环氧丙烯酸酯单体和酸酐反应，最后中和、分散入水得到水性光固化环氧丙烯酸树脂。本发明的制备方法简单易行，可行性高，制备得到的水性光固化环氧丙烯酸树脂的耐水解性优异稳定性好，制备得到的固化膜的硬度，耐磨性，附着力好。