▎ 摘　　要

NOVELTY - Aqueous epoxy zinc oxide primer comprises component (A) comprising 7.5-30 %mass aqueous epoxy curing agent, 15-23 %mass film forming additive, 2-2.2 %mass anti-settling agent, 7.5-11.5 %mass filler, 1-1.2 %mass dispersant, 0.3-0.4 %mass antifoaming agent, 0.2-0.3 %mass defoamer, 0.2-0.4 %mass leveling agent and 35-60 %mass zinc powder, and component (B) comprising 80-88.5 %mass aqueous epoxy resin emulsion, 0.2-1 %mass anti-sagging agent, 0.2-0.4 %mass anti-flash rust agent, 2-2.5 %mass aqueous graphene dispersion and 6-10.5 %mass deionized water, where the mass ratio of the component (A) and the component (B) is (1-4):1. USE - As aqueous epoxy zinc oxide primer. ADVANTAGE - The method adds high-concentration stable dispersed aqueous graphene dispersion liquid to aqueous anticorrosive coating system, achieves the performance index of the traditional solvent type epoxy zinc-rich primer under the condition of lower zinc powder content, has energy conservation, environmental protection and high comprehensive cost performance, breaks through the bottleneck of domestic traditional product performance that is difficult to meet the application of heavy anti-corrosion field, and has high application value and social and economic value. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method the preparing the aqueous zinc epoxy primer, involving mixing aqueous epoxy curing agent and film-forming additive, adding dispersant, antifoaming agent, defoamer and leveling agent in sequence and stirring, adding anti-settling agent, carrying out first dispersion, adding filler and zinc powder, carrying out second dispersion, grinding the obtained material and filter, adding the film-forming additive to obtain the component (A), mixing aqueous epoxy resin emulsion, deionized water, anti-sagging agent and anti-flash rust agent, uniformly dispersing, and adding the aqueous graphene dispersion for dispersion, and adding deionized water to obtain the component (B).