▎ 摘 要
NOVELTY - A lignin modified functionalized graphene is prepared by taking graphene oxide, adding solvent to prepare solution, adding lignin, ultrasonicating for 0.5-1 hour, obtaining mixed solution, adding sulfonated polyaniline, and stirring for 0.5-6 hours at - 5 to 50 degrees C. USE - Method for preparing lignin modified functionalized graphene. ADVANTAGE - The method is simple and environment-friendly. The product has good dispersibility and suitable as heavy anticorrosive paint.