▎ 摘　　要

NOVELTY - Preparing reduced graphene oxide/nano-silver composite film, involves (a) adding ammonia aqueous solution to a mixture of graphene oxide and silver nitrate, adjusting the pH value, (b) adding a certain amount of reducing agent gallic acid, (c) filling a layer with filter film in a sand core funnel, pouring the uniformly reduced graphene oxide-nano silver mixed solution into the sand cell funnel, filtering to a relatively dry state, (d) pouring uniform cellulose nano-filament solution into a uniform nano-film solution, filtering the uniform nano film solution to relatively dry, (e) pouring the uniform graphene oxide or nano-silver mixed solution in a uniform manner, filtering it to a dry state and (f) placing the filter film on a polytetrafluoroethylene plate, stripping the filter membrane, placing it in an oven and drying it to obtain the final product. USE - The method is useful for preparing reduced graphene oxide/nano-silver composite film used in flexible conductive material field. ADVANTAGE - The method: has simple operation process; utilizes green and environmentally friendly reducing agent; and prepares product which is dispersed and stable, where the nano-silver particle sizes are uniform, and has high conductivity and good antibacterial properties.