Water-based building anticorrosive paint and preparation method thereof

The invention relates to the field of water-based coatings, in particular to a water-based building anticorrosive coating and a preparation method thereof.The water-based building anticorrosive coating is prepared from, by weight, 35-44 parts of azide amphoteric epoxy resin; 0.1 to 1.5 parts of a buffering agent; 1-5 parts of nano silicon dioxide; 0.5 to 2.8 parts of a neutralizing agent; 15 to 20 parts of titanium dioxide; 0.1 to 0.5 part of a defoaming agent; 10 to 20 parts of waterborne epoxy emulsion; 1-1.8 parts of a dispersant; 1-2 parts of a coalescing agent; and 1-3 parts of a preservative. According to the water-based building anticorrosive paint and the preparation method thereof provided by the invention, by modifying a common epoxy resin polymer, the adhesion property of the paint is improved, the strength and underwater tension of the paint can be improved, the service life is effectively prolonged, and the water-based building anticorrosive paint can be used on water-based primer and oil-based p