Water-based epoxy heavy anti-corrosion coating for oil storage tank and preparation method of water-based epoxy heavy anti-corrosion coating

The invention relates to the field of chemical coatings, in particular to a water-based epoxy heavy anti-corrosion coating for a petroleum storage tank and a preparation method of the water-based epoxy heavy anti-corrosion coating. The water-based epoxy heavy anti-corrosion coating for the petroleum storage tank is prepared from a component A and a component B according to the mass ratio of (3.5-5): 1, wherein the component A comprises water-based organic-inorganic hybrid epoxy resin emulsion, a water-based wetting dispersant, a water-based thixotropic agent, a water-based defoaming agent, water-based modified organic elastic glass flakes, anti-rust pigment, filler and water; the component B comprises a water-based modified amine curing agent, a water-based adhesion promoter and a water-based anti-settling agent; according to the water-based epoxy heavy anti-corrosion coating for the petroleum storage tank, the water-based organic-inorganic hybrid epoxy resin emulsion and the water-based modified aliphatic am