▎ 摘　　要

NOVELTY - Water-based ultra-thin metal substrate anticorrosive flame retardant coating comprises 50-65 pts. wt. mixed polyurethane emulsion, 10-15 pts. wt. functionalized graphene, 5-8 pts. wt. flame retardant smoke suppressant, 8-12 pts. wt. reinforcing filler, 5-10 pts. wt. foaming agent, 3-8 pts. wt. preservative, 5-10 pts. wt. cosolvent, 0.5-1 pts. wt. defoamer, 0.5-1 pts. wt. leveling agent, 0.5-1.5 pts. wt. anti-settling agent, 0.3-1 pts. wt. antifreeze, 1-3 pts. wt. thickener, 0.5-1 pts. wt. wetting agent, 1-1.5 pts. wt. dispersant, 8-12 pts. wt. curing agent, and 30-45 pts. wt. deionized water. USE - Water-based ultra-thin metal substrate anticorrosive flame retardant coating. ADVANTAGE - The water-based ultra-thin metal substrate anticorrosive flame retardant coating is light, thin, safe and environment friendly, simple method and high efficiency, has good film forming property, strong coating adhesion, good stability and good foaming effect, improve fire resistance limit, bonding strength and fire resistance time, good flame retardancy, less smoke, corrosion resistance, water resistance, weather resistance, realizes the dual functions of flame retardant and anti-corrosion, and achieve mass production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a water-based ultra-thin metal substrate anti-corrosion and flame-retardant paint, which involves: (A) sieving before weighing the solid component; (B) weighing and mixing polyurethane emulsion, functionalized modified graphene, flame retardant smoke suppressant, reinforcing filler, foaming agent, preservative, cosolvent, defoaming agent, leveling agent, anti-settling agent, antifreeze, thickener, wetting agent, dispersant, curing agent, deionized water; (C) adding deionized water, dispersant, wetting agent, anti-settling agent, foaming agent, reinforcing filler, functionalized modified graphene, resistance Burning smoke suppressant, stirring for 30-60 minutes at a speed of 800-1000 revolution per minutes r/min; (D) turning into a ball mill with a temperature of 40-50 degrees C and grounding until the fineness is less than or equal to 60 mu m; (E) transferring to a stirrer, adjust the rotation speed to 1000-1200 r/min; (F) adding the mixed polyurethane emulsion and the remaining auxiliary agent, stir for 3-5 hours; and (G) stirring well and filter to obtain the water-based ultra-thin metal substrate anticorrosive coating.