▎ 摘　　要

NOVELTY - Water-based heavy-duty anticorrosive flame retardant coating comprises components A and B, where the weight ratio of the component A and B component is 100:(20-30). The component A comprises 50-60 pts. wt. modified epoxy resin emulsion, 10-15 pts. wt. functionalized modified graphene, 12-18 pts. wt. filler, 5-10 pts. wt. co-solvent, 0.5-1 pts. wt. defoamer, 0.5-1 pts. wt. leveling agent, 1-2 pts. wt. anti-settling agent, 0.5-1 pts. wt. antifreeze, 1-1.5 pts. wt. thickener, 1-2 pts. wt. wetting agent, 1-2 pts. wt. dispersant, 335-45 pts. wt. deionized water, and component B comprises 35-50 pts. wt. curing agent, 20-35 pts. wt. co-solvent. The modified epoxy resin emulsion of component A is prepared by adding epoxy resin with resin and solvent methyl isobutyl ketone to the reactor in the ratio of 1:5, stirring and dissolving, and stannous octoate. USE - Water-based heavy-duty anticorrosive flame retardant coating used for metal substrates. ADVANTAGE - The water-based heavy-duty anticorrosive flame retardant coating is safe and environment, and cost-effective, has good film forming property, strong adhesive force, good stability, fireproof limit, adhesive strength, good fire resistance, corrosion resistance, water resistance, weather resistance, improves fireproof time. DETAILED DESCRIPTION - Water-based heavy-duty anticorrosive flame retardant coating comprises components A and B, where the weight ratio of the component A and B component is 100:(20-30). The component A comprises 50-60 pts. wt. modified epoxy resin emulsion, 10-15 pts. wt. functionalized modified graphene, 12-18 pts. wt. filler, 5-10 pts. wt. co-solvent, 0.5-1 pts. wt. defoamer, 0.5-1 pts. wt. leveling agent, 1-2 pts. wt. anti-settling agent, 0.5-1 pts. wt. antifreeze, 1-1.5 pts. wt. thickener, 1-2 pts. wt. wetting agent, 1-2 pts. wt. dispersant, 335-45 pts. wt. deionized water, and component B comprises 35-50 pts. wt. curing agent, 20-35 pts. wt. co-solvent. The modified epoxy resin emulsion of component A is prepared by adding epoxy resin with resin and solvent methyl isobutyl ketone to the reactor in the ratio of 1:5, stirring and dissolving, and stannous octoate, a catalyst that accounts for 1-3 wt.% of the mass of epoxy resin, adding gamma -glycidoxypropyltrimethoxysilane to the reaction system in an amount of epoxy resin with a mass ratio of 1:(5-8), refluxing the reaction for 8-12 hours. The reaction is complete, removd most of the methyl isobutyl ketone by rotary evaporation, added silicone-modified epoxy resin prepared to deionized water, and dispersed ultrasonically to obtain final product. An INDEPENDENT CLAIM is included for a method for preparing a water-based heavy-duty anticorrosive flame-retardant coating, which involves: (A) preparing component A by weighing modified epoxy resin emulsion, functionalized modified graphene, filler, co-solvent, wetting agent, dispersant, anti-settling agent and deionized water, and placing blender to mixing uniformly; (B) placing raw materials mixed uniformly in the in a sand mill with a temperature of 35-45 degrees C for grinding and dispersion, and the fineness after grinding is 45 micrometer; (C) placing raw materials after grinding and dispersing into the stirring tank, adding the defoamer, leveling agent, antifreeze agent, thickener of the weight of all components, and fully stirring at the speed of 1000-1200r / min after homogenization, filtering to remove mechanical impurities, preparing into water-based paint, and packaging for use; (D) preparing components B by placing curing agent and co-solvent in the container, stirring thoroughly at 800-1000 r/minute, and producing the curing agent through filtration, and packaging for use; and (E) mixing component A and component B in a weight ratio of 100: (20-30), and then adding deionized water to adjust to the construction viscosity to obtain final product.