Waterborne epoxy zinc-rich coating with good dispersibility based on graphene

The invention relates to the technical field of anticorrosive coatings, and discloses a waterborne epoxy zinc-rich coating with good dispersibility based on graphene aiming at the problem of poor dispersibility of components added in the existing waterborne epoxy zinc-rich coating, the waterborne epoxy zinc-rich coating comprises a component A epoxy resin graphene emulsion and a component B curing agent zinc powder slurry, the component A epoxy resin graphene emulsion comprises a modified dispersant, a macromolecular main chain of the modified dispersant is spiral, and lipophilic groups and hydrophilic groups are circumferentially distributed on two sides of the macromolecular main chain. By providing the component A epoxy resin graphene emulsion with dispersed, uniform and stable components, the dispersity of graphene in the component A epoxy resin graphene emulsion is guaranteed, and compared with a traditional epoxy zinc-rich coating, the zinc-rich coating is better in film-forming property and higher in c