▎ 摘　　要

NOVELTY - Metal substrate long-lasting anti-corrosion paint comprises component A and component B, where e.g. weight ratio between component A and component B is 100:25-35; component A consists of epoxy-silicone resin modified acrylic resin emulsion, functionalized modified graphene, filler, aqueous drier, thickening agent, wetting agent and deionized water; component B consists of isocyanate curing agent and cosolvent; and epoxy-silicone resin modified acrylic resin emulsion of component A is prepared by (i) mixing silane coupling agent and epoxy resin, and reacting at room temperature for 3-5 hours, (ii) adding azobisisobutyronitrile and acetone into mixture obtained in step (i), mixing methyl methacrylate with hydroxyethyl acrylate, reacting at 70-80 degrees C for 3-5 hours, and adding acetone to control the viscosity, and (iii) cooling to 50-60 degrees C, adding triethanolamine and deionized water, stirring and mixing for 20-30 minutes to obtain epoxy-silicone resin modified acrylic resin emulsion. USE - Used as metal substrate long-lasting anti-corrosion paint. ADVANTAGE - The paint: has excellent strong substrate adhesive force, high mechanical strength, anti-friction performance, salt spray resistance, water resistance, chemical resistance, oil resistance, impact resistance and strong construction adaptability. DETAILED DESCRIPTION - Metal substrate long-lasting anti-corrosion paint comprises component A and component B, where weight ratio between component A and component B is 100:25-35; component A consists of 50-60 pts. wt. epoxy-silicone resin modified acrylic resin emulsion, 12-18 pts. wt. functionalized modified graphene, 10-20 pts. wt. filler, 8-15 pts. wt. cosolvent, 0.1-0.5 pts. wt. antifoaming agent, 0.5-1 pts. wt. leveling agent, 0.3-0.8 pts. wt. aqueous drier, 0.3-0.8 pts. wt. thickening agent, 0.5-1 pts. wt. wetting agent and 30-35 pts. wt. deionized water; component B consists of 40-50 pts. wt. isocyanate curing agent and 10-20 pts. wt. cosolvent; and epoxy-silicone resin modified acrylic resin emulsion of component A is prepared by (i) mixing 3-8 pts. wt. silane coupling agent and 8-10 pts. wt. epoxy resin, and then reacting at room temperature for 3-5 hours under nitrogen or argon gas atmosphere, (ii) adding 0.5-1 pts. wt. azobisisobutyronitrile and 3-5 pts. wt. acetone into mixture obtained in step (i), mixing 5-8 pts. wt. methyl methacrylate with 3-5 pts. wt. hydroxyethyl acrylate, reacting at 70-80 degrees C for 3-5 hours, and adding acetone during the reaction to control the viscosity of the reaction system to 50-65 mPa.s, and (iii) cooling to 50-60 degrees C, adding 3-5 pts. wt. triethanolamine and 50-55 pts. wt. deionized water, stirring and mixing for 20-30 minutes to obtain epoxy-silicone resin modified acrylic resin emulsion. An INDEPENDENT CLAIM is also included for preparing metal substrate long-lasting anti-corrosion paint comprising (A) (i) placing 10 pts. wt. graphene in a mixed acid solution of 90-100 pts. vol. 3:1 concentrated sulfuric acid and concentrated nitric acid, mechanically agitating for 12 hours under ice bath condition, then adding 20-30 pts. wt. potassium permanganate and 80-90 pts. wt. deionized water, stirring and reacting at 80-90 degrees C for 1-2 hours, hot filtering, then washing with deionized water to neutral, and vacuum drying at 80 degrees C to obtain graphene oxide, (ii) adding 10 pts. wt. 3-(trimethoxysilyl)propyl)succinic anhydride and 25-30 pts. wt. 2(5-ethoxy-1H-benzimidazole-2-amino)-ethanol into reaction vessel, then adding 1-3 pts. wt. p-toluenesulfonic acid, 2-4 pts. wt. hydroquinone and 40-50 pts. wt. toluene, stirring and mixing, refluxing for 6 hours under nitrogen atmosphere, cooling to room temperature, washing with deionized water for 2-3 times, drying the oil layer with anhydrous magnesium sulfate, and distilling the solvent under reduced pressure to obtain product, (iii) dispersing 5-10 pts. wt. graphene oxide of step (i) in 90-100 pts. wt. absolute ethanol, ultrasonicating for 1-2 hours, then transferring to the reaction vessel, adding 10-20 pts. wt. product obtained in step (ii), stirring and refluxing for 12 hours under nitrogen atmosphere, washing obtained mixture with water, ethanol and methanol for twice and lyophilizing to obtain modified graphene oxide, (iv) dissolving adding 10-15 pts. wt. zinc nitrate in 50-60 pts. wt. methanol solvent, adding 5-10 pts. wt. modified graphene oxide obtained in step (iii), stirring and reacting at 50 degrees C for 30 minutes under nitrogen atmosphere, cooling to room temperature, and filtering to obtain functionalized modified graphene, (B) (i) placing 60 wt.% epoxy-silicone resin modified acrylic resin emulsion and deionized water, modified functionalized modified graphene, filler and cosolvent in a blender, (ii) placing the uniformly mixed raw materials in a sand mill for grinding and dispersing, (iii) placing raw material after grinding and dispersing in step (ii) in a stirred tank, adding 40 wt.% epoxy resin-silicone resin modified acrylic resin emulsion and remaining component deionized water and total component weight of the antifoaming agent, leveling agent, aqueous drier, thickening agent and wetting agent, stirring at a speed of 1000-1200 revolution/minute, filtering, and removing mechanical impurities to obtain aqueous paint, (C) placing isocyanate and co-solvent in the container, stirring at a speed of 800-1000 revolution/minute, and filtering to obtain curing agent, then packing, and (D) mixing component A aqueous paint and component B aqueous curing agent in a weight ratio of 100:25-35, and then adding deionized water to adjust the viscosity to obtain long-lasting metal substrate anti-corrosion paint.