▎ 摘　　要

NOVELTY - Preparing composite conductive film comprises e.g. mixing graphene and potassium permanganate solution in a mass ratio of 1:30-1:50 to obtain mixed solution, adding potassium permanganate solution for 0.5-0.6 times the sulfuric acid into mixed solution, heating, stirring reaction, filtering and washing to obtain graphene oxide, mixing 20-30 pts. wt. chitosan solution, 20-30 pts. wt. polyvinyl alcohol solution, 3-5 pts. wt. reducing agent, 3-5 pts. wt. protective agent, 3-5 pts. wt. promoter, 20-30 pts. wt. copper nitrate solution and ultrasonically dispersing to obtain dispersion. USE - The method is useful for preparing composite conductive film. ADVANTAGE - The film has excellent mechanical property and conductivity. DETAILED DESCRIPTION - Preparing composite conductive film comprises (i) mixing graphene and potassium permanganate solution in a mass ratio of 1:30-1:50 to obtain mixed solution, (ii) adding potassium permanganate solution for 0.5-0.6 times the sulfuric acid into mixed solution obtained in step (i), heating, stirring reaction, filtering and washing to obtain graphene oxide, (iii) mixing 20-30 pts. wt. chitosan solution, 20-30 pts. wt. polyvinyl alcohol solution, 3-5 pts. wt. reducing agent, 3-5 pts. wt. protective agent, 3-5 pts. wt. promoter, 20-30 pts. wt. copper nitrate solution and ultrasonically dispersing to obtain dispersion, (iv) mixing graphene oxide and dispersion in a mass ratio of 1:20-1:30, concentrating under reduced pressure, drying and balling mill to obtain modified fillers, (v) mixing 10-20 pts. wt. modified filler, 8-10 pts. wt. plant essential oils, 40-50 pts. wt. emulsions, 40-50 pts. wt. water, ultrasonically dispersing to obtain film-forming liquid, and (vi) spin-coating film-forming liquid obtained in step (v) onto the surface of glass plate, drying, scraping to obtain film with scraper to obtain final product.