▎ 摘　　要

NOVELTY - Preparing graphene hydrophobic anti-corrosion coating comprises e.g. using 2-5 pts. wt. aqueous graphene slurry, 40-60 pts. wt. aqueous hydroxy acrylic emulsion, 1-5 pts. wt. dimethylethanolamine, 2-3 pts. wt. titanium dioxide, 5-10 pts. wt. deionized water, 8-12 pts. wt. acrylic acid, 8-12 pts. wt. leveling agent, 0.1-1 pts. wt. defoaming agent, 1-5 pts. wt. curing agent, 8-15 pts. wt. cosolvent, 1-2 pts. wt. ethanolamine, 3-10 pts. wt. coupling agent, 3-5 pts. wt. urethane acrylate, and 5-10 pts. wt. aerogel, specifically (1) adding aqueous graphene slurry, aqueous hydroxyacrylic acid emulsion, dimethylethanolamine, titanium dioxide, deionized water and acrylic acid into a mixer for mixing, and heating to promote mixing efficiency to obtain a composite emulsion, and (2) adding acrylic acid, leveling agent and cosolvent to obtained composite emulsion, and performing preliminary mixing by a mixer, and reacting for period of time. USE - The method is useful for preparing graphene hydrophobic anti-corrosion coating, which is useful for coating metal surface to avoid metal substrate corrosion damage. ADVANTAGE - The coating: has good corrosion-proof effect, thermal-insulating property, and temperature-resistant property; prevents corrosive medium from passing through; can block invasion of the small molecule corrosion medium; and enhances corrosion-performance. DETAILED DESCRIPTION - Preparing graphene hydrophobic anti-corrosion coating comprises using 2-5 pts. wt. aqueous graphene slurry, 40-60 pts. wt. aqueous hydroxy acrylic emulsion, 1-5 pts. wt. dimethylethanolamine, 2-3 pts. wt. titanium dioxide, 5-10 pts. wt. deionized water, 8-12 pts. wt. acrylic acid, 8-12 pts. wt. leveling agent, 0.1-1 pts. wt. defoaming agent, 1-5 pts. wt. curing agent, 8-15 pts. wt. cosolvent, 1-2 pts. wt. ethanolamine, 3-10 pts. wt. coupling agent, 3-5 pts. wt. urethane acrylate, and 5-10 pts. wt. aerogel, specifically (1) adding aqueous graphene slurry, aqueous hydroxyacrylic acid emulsion, dimethylethanolamine, titanium dioxide, deionized water and acrylic acid into a mixer for mixing, and heating to promote mixing efficiency to obtain a composite emulsion, (2) adding acrylic acid, leveling agent and cosolvent to obtained composite emulsion, and performing preliminary mixing by a mixer, and reacting for period of time, adding ethanolamine for secondary stirring to obtain a graphene emulsion, (3) adding coupling agent, urethane acrylate and aerogel to obtained graphene emulsion and mixing by a mixer, mixing emulsion and ultrasonically dispersing to obtain a milk base, (4) adding defoaming agent and solidifying agent to milk base, and stirring at a speed of 800-1000 revolutions/minute for 50-60 minutes at 50-75℃ to obtain a milk material, and (5) cooling obtained emulsion, adding antifungal agent and anti-flash rust agent, and stirring at a speed of 300-500 revolutions/minute for 20-30 minutes to obtain graphene hydrophobic anti-corrosion coating.