▎ 摘　　要

NOVELTY - Manufacture of graphene/nano-silver conductive film involves forming a base film, preparing graphene oxide, dispersing in deionized water, ultrasonically processing, centrifuging, mixing resulting colloid and hydrazine hydrate in volume ratio of 100:0.15-0.2, adjusting pH to 10, stirring uniformly, placing in water bath at 98 degrees C for 1-2 hours to obtain a graphene dispersion, adding a silver nitrate aqueous solution, reducing the silver ions to obtain a graphene/nano-silver dispersion liquid, adding dispersion to the base film, forming a composite film, and hot-press drying at 85 degrees C. USE - Manufacture of graphene/nano-silver conductive film. ADVANTAGE - The graphene/nano-silver conductive film of high quality and performance can be produced economically. DETAILED DESCRIPTION - Manufacture of graphene/nano-silver conductive film involves cutting Camellia into small pieces, adding sodium hydroxide and sodium sulfate, heating to 85-90 degrees C for 90 minutes, adding potassium hydroxide solution, heating to 70-80 degrees C for 90 minutes, dispersing resulting cellulose in distilled water, adding hydrogen peroxide solution to obtain bleached cellulose, dispersing in distilled water, adding (2,2,6,6-tetramethylpiperidin-1-yl)oxyl, sodium bromide and sodium hypochlorite, stirring at room temperature to perform an oxidation reaction, adding anhydrous ethanol to terminate the reaction, repeatedly washing with distilled water to obtain oxidized cellulose, dispersing in distilled water, treating with a nano-fluidizer to obtain a pale blue suspension, vacuum-filtering to obtain a base film, preparing graphene oxide by modified Hummers method, dispersing in deionized water to obtain graphene oxide aqueous solution, ultrasonically processing, centrifuging, mixing resulting colloid and hydrazine hydrate in volume ratio of 100:0.15-0.2, adjusting pH to 10, stirring uniformly, placing in water bath at 98 degrees C for 1-2 hours to obtain a graphene dispersion, adding a silver nitrate aqueous solution, reducing the silver ions to silver nanoparticles by residual hydrazine to obtain a graphene/nano-silver dispersion liquid, adding dispersion to the base film, forming a composite film by suction filtration, and hot-press drying at 85 degrees C.