▎ 摘　　要

NOVELTY - A silica-graphene oxide modified polyaniline anticorrosive material is prepared by ultrasonically dispersing graphene oxide and toluene solvent using azobisisobutyronitrile to obtain cyano-modified graphene oxide, reacting sodium hydroxide and cyano-modified graphene oxide, ultrasonically dispersing thionyl chloride and carboxylated graphene, adding toluene and distilling under reduced pressure, ultrasonically dispersing graphene acyl chloride and anhydrous tetrahydrofuran solvent, adding 4-(tert-butoxycarbonyl-amino)phenol, refluxing, adding excess trifluoroacetic acid and dichloromethane, washing and drying, adding nanosilica, isocyanatopropyltriethoxysilane and chitosan to the absolute ethanol solvent, adding glacial acetic acid, refluxing, washing and drying, adding perfluoroheptanoic acid, ammonium persulfate, aniline, silica-chitosan and aminated graphene to 2% acetic acid solution, stirring and reacting, filtering and washing the product with acetone solution and drying. USE - Silica-graphene oxide modified polyaniline anticorrosive material. ADVANTAGE - The silica-graphene oxide modified polyaniline material has excellent biocompatibility, anti-corrosion performance, surface tension, and hydrophobicity. DETAILED DESCRIPTION - A silica-graphene oxide modified polyaniline anticorrosive material is prepared by adding graphene oxide to the toluene solvent in nitrogen atmosphere, ultrasonically dispersing for 0.5-1.5 hours, using azobisisobutyronitrile as the initiator, where the mass ratio of azobisisobutyronitrile and graphene oxide is 1:(20-40), reacting at 60-80 degrees C for 6-9 hours, filtering, washing, to obtain cyano-modified graphene oxide, mixing sodium hydroxide and cyano-modified graphene oxide in a mass ratio of 10:(10-30), stirring and reacting at 70-100 degrees C for 30-40 hours, adjusting the pH of the solution to 2-4, filtering and washing with distilled water, and drying to obtain high-carboxyl-content carboxylated graphene, adding thionyl chloride and carboxylated graphene to the flask, ultrasonically dispersing for 0.5-2 hours, refluxing for 20-30 hours in a nitrogen atmosphere at 80-100 degrees C, adding toluene and distilling under reduced pressure to remove excess Of thionyl chloride to obtain acyl chloride graphene, adding graphene acyl chloride to anhydrous tetrahydrofuran solvent, ultrasonically dispersing for 0.5-1 hour, adding 4-(tert-butoxycarbonyl-amino)phenol, refluxing for 10-15 hours in a nitrogen atmosphere at 60-80 degrees C, adding excess trifluoroacetic acid and dichloromethane, stirring for 0.5-2 hours, removing the tert-butoxycarbonyl protecting group, washing and drying with methanol to prepare aminated graphene, adding nanosilica, isocyanatopropyltriethoxysilane and chitosan to the absolute ethanol solvent, adding glacial acetic acid until the chitosan is dissolved, and stirring at 50-80 degrees C for 20-30 hours, condensing and refluxing, washing and drying to prepare silica-chitosan, and adding perfluoroheptanoic acid, ammonium persulfate, aniline, silica-chitosan and aminated graphene to 2% acetic acid solution, stirring and reacting for 0.5-2 hours, filtering and washing the product with acetone solution and drying.