▎ 摘　　要

NOVELTY - Preparing graphene anticorrosive paint for marine environment involves dispersing the aniline monomer into the 5-sulfosalicylic acid, ultrasonically processing for 20-40 minutes, adding graphene oxide aqueous solution, stirring for 20-40 minutes, performing ultrasonic dispersion for 20-40 minutes, then dripping ammonium persulfate, stirring for 11-13 hours, where 5-sulfosalicylic acid and aniline of mol ratio, the mol ratio of ammonium sulfate and aniline, have the same numerical value, is 4:5-5:4. The solution obtained is filtered form solution with deionized water and ethanol to wash for multiple times until the washing liquid is neutral, vacuum drying the precipitate at 60-70 degrees C for 20-28 hours to obtain graphene oxide/polyaniline composite material. USE - Method of preparing graphene anticorrosive paint for marine environment. DETAILED DESCRIPTION - Preparing graphene anticorrosive paint for marine environment involves dispersing the aniline monomer into the 5-sulfosalicylic acid, ultrasonically processing for 20-40 minutes, adding graphene oxide aqueous solution, stirring for 20-40 minutes, performing ultrasonic dispersion for 20-40 minutes, then dripping ammonium persulfate, stirring for 11-13 hours, where 5-sulfosalicylic acid and aniline of mol ratio, the mol ratio of ammonium sulfate and aniline, have the same numerical value, is 4:5-5:4. The solution obtained is filtered form solution with deionized water and ethanol to wash for multiple times until the washing liquid is neutral, vacuum drying the precipitate at 60-70 degrees C for 20-28 hours to obtain graphene oxide/polyaniline composite material. The separating oil particles whose particle diameter is 5-25nm of nano titanium dioxide is dispersed to a concentration of 0.02-1M of 5-sulfosalicylic acid, followed by adding concentration is 0.25-0.75mg/ml graphene oxide/polyaniline composite solution, continuously stirring for 11-13 hours, centrifuging, centrifugal washing product by distilled water, washing with ethanol and drying to obtain oxidized graphene/polyaniline/titanium dioxide composite nano powder, where the nano titanium dioxide of the graphene oxide/polyaniline composite material whose mass percent is 5-50%. The oxidized graphene/polyaniline/titanium dioxide composite nano-powder, aqueous epoxy resin emulsion and firming agent emulsion, antifoaming agent and de-ionized water, fully stirring, to obtain suspension of anticorrosive paint, where the oxidized graphene/polyaniline/titanium dioxide compositenano-powder weight percentage of anti-corrosive paint is 0.3-5%.