▎ 摘　　要

NOVELTY - An anticorrosive grafted graphene filler for organic coating, comprises 0.1-0.2 pts. wt. triterpenoid saponin, 2-3 pts. wt. phytic acid hexaphosphate, 0.6-1 pt. wt. anticorrosive additive, 2-4 pts. wt. dodecafluoroheptylpropyltrimethoxysilane, 10-15 pts. wt. precursor, 110-120 pts. wt. graphene oxide, and 1-2 pts. wt. 3-aminopropyltriethoxysilane. USE - An anticorrosive grafted graphene filler for organic coating. ADVANTAGE - The composite material has good strength, can be applied to an organic coating material and has good corrosion resistance to the metal substrate. The composite material has good stability and superior comprehensive performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing an anticorrosive grafted graphene filler for organic coating which involves (1) adding anti-corrosive additive to deionized water with weight of 76-80 times weight of anti-corrosive additive, stirring; adding and stirring triterpenoid saponin at 60-70 degrees C for 4-10 minutes to obtain anticorrosive dispersion; (2) adding precursor to anticorrosive dispersion, stirring; dropping 3-5 mol/L ammonia water, and adjusting pH to 10-12, stirring at room temperature for 2-3 hours; after suction filtration, washing filter cake with water and drying under vacuum at 90-100 degrees C for 1-2 hours to obtain an anticorrosive sol; (3) adding phytic acid hexaphosphate to deionized water with a weight of 30-40 times weight of phytic acid hexaphosphate, stirring; adding anti-corrosive sol, and sending to a constant temperature water bath of 60-65 degrees C, stirring for 1-2 hours, and discharging and centrifuging; washing precipitation and drying at room temperature to obtain a carboxylated anticorrosive sol, (4) adding carboxylated anticorrosive sol to thionyl chloride with a weight of 17-20 times weight of the carboxylated anticorrosive sol, stirring at 50-55 degrees C for 15-20 hours; removing thionyl chloride by distillation, obtaining acyl chloride anticorrosive sol by drying at room temperature, (5) adding graphene oxide to anhydrous ethanol with a weight of 100-200 times weight of graphene oxide, stirring at 1000-1400 rpm for 3-4 hours, adding 3-aminopropyltriethoxysilane, removing anhydrous ethanol by distillation to obtain aminated graphene oxide, (6) adding methyl nylon with a weight of 30-48 times weight of dodecafluoroheptylpropyltrimethoxysilane with sonication for 1-2 minutes to obtain a silane ester solution, (7) mixing acyl chloride anticorrosive sol with the aminated graphene oxide and adidng mixture to deionized water with a weight of 30-40 times the weight of deionized water, sonicating for 10-20 minutes and filtering, washing the precipitate with water, drying at room temperature, adding to the silane ester solution, raising the temperature to 60-70 degrees C, and stirring mixture at 800-1000 rpm for 1-2 hours, filtering, and drying precipitate to obtain an anticorrosive grafted graphene filler for the organic coating.