Waterborne epoxy type anticorrosive paint for steel surfaces, and preparation method thereof

The invention discloses waterborne epoxy type anticorrosive paint for steel surfaces, and a preparation method thereof, and belongs to the technical field of paint preparation. The anticorrosive paintcomprises, by mass, 28-44 parts of film-forming emulsions, 7-11 parts of film-forming curing agents, 5-12 parts of anti-rust pigment fillers, 10-13 parts of coloring pigment fillers, 8-18 parts of physical pigment fillers, 0.5-4 parts of auxiliary agents, 0.5-3 parts of nano-assistants and 10-40 parts of solvents. Deionized water serves as a dispersion medium instead of conventional organic solvents to reduce VOC emission and harm to the environment and human bodies; the paint is environmentally friendly; the surfaces of nanoparticles are modified before being added into a waterborne epoxy emulsion, so that proneness to agglomeration of the nanoparticles can be effectively relieved, and the nanoparticles can play a role in enhancing the overall performance of the paint. The paint has theadvantages of long service