Synthesis method of styrene/acrylate-modified quick-drying water-based alkyd resin

The invention relates to a synthesis method of a styrene/acrylate-modified quick-drying water-based alkyd resin, which comprises the steps of synthesis of base alkyd resin and modification of the base alkyd resin. The styrene/acrylate-modified quick-drying water-based alkyd resin is synthesized by a fatty acid process and a graft copolymerization process. The method comprises the following steps:polycondensing monoacid, polybasic acid and polyalcohol to obtain a base alkyd resin; and mixing modifying monomers and an initiator, and dropwisely adding the mixture into the base alkyd resin to carry out graft copolymerization, thereby obtaining the modified alkyd resin. The quick-drying water-based alkyd resin obtained by the method provided by the invention has the advantages of quick dryingat normal temperature, high hardness, hydrolysis resistance, high water resistance, strong weather resistance and high glossiness.