▎ 摘　　要

NOVELTY - Silicon carbide/sulfonated graphene/polyaniline corrosion resistant coating comprises 40-60 wt.% epoxy resin, 5-10 wt.% silicon carbide/sulfonated graphene/polyaniline composite, 10-25 wt.% curing agent, 1-5 wt.% plasticizer, 1-4 wt.% defoaming agent, and 20-40 wt.% solvent. USE - Silicon carbide/sulfonated graphene/polyaniline corrosion resistant coating. ADVANTAGE - The product is easy to use and suitable for large-scale industrial production, and has synergistic effect, excellent conductivity and physical properties, and physical barrier with chemical preservative effect. The preparation is simple and controllable, and has no complex equipment. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of silicon carbide/sulfonated graphene/polyaniline corrosion resistant coating comprising mixing 5-10 g silicon carbide and 100 mL ethanol/water mixture at 98:2 volume ratio, stirring for 30 minutes, adding 0.1-0.2 g aminosilane coupling agent, stirring at 60 degrees C for 12 hours, centrifuging, washing to obtain silicon carbide amino-modified silane coupling agent, dispersing in water, stirring, and preparing 0.5-20 wt.% suspension; preparing 0.1-4 mg/mL sulfonated graphene solution; dropping sulfonated graphene solution in prepared suspension, centrifuging, and washing to obtain sulfonated graphene-coated silicon carbide material; preparing 0.05-0.4 mol/L aniline solution with pH 1-4, adding 0.1-0.3 g sulfonated graphene-coated silicon carbide material, stirring for 1-3 hours, slowly adding oxidizing agent, stirring at 0-4 degrees C for 4-24 hours, centrifuging, and washing to obtain silicon carbide/sulfonated graphene/polyaniline composite, where the oxidizing agent is iron chloride, and ferric nitrate or ammonium persulfate at 2:1 to 1:2 molar ratio; dispersing resulting product into solvent containing epoxy resin, stirring, adding remaining raw materials, and stirring for 10-30 minutes to obtain final product.