Epoxy modified acrylic acid aqueous dispersion

The invention discloses an epoxy modified acrylic waterborne dispersion, and particularly relates to the technical field of acrylic modification. Bisphenol A epoxy diacrylate is adopted as a modifier, bisphenol A epoxy diacrylate reacts with acrylic acid, an epoxy group is opened, the epoxy group is made to have double bonds capable of conducting free radical polymerization, the epoxy group is mixed with an acrylate monomer, and the epoxy modified acrylic waterborne dispersion is obtained. The molecular chain of bisphenol A epoxy diacrylate has carbon-carbon double bonds, so that the bisphenol A epoxy diacrylate can be subjected to free radical copolymerization with carbon-carbon double bonds in hard monomers, soft monomers and functional monomers in the monomer mixture under the action of the initiator, the reaction is easier, and the mode of pure free radical graft polymerization is abandoned; therefore, by means of an emulsion polymerization method, bisphenol A epoxy diacrylate with carbon-carbon double bo