▎ 摘　　要

NOVELTY - The preparation method of graphene-nanosilver dispersion liquid involves adding graphite powder and dispersant to solvent and then uniformly mixing, heating the mixture at 90-110 degrees C for 0.5-2 hours and then centrifugally separating at 4000 rpm, adding polyvinylpyrrolidone aqueous solution, graphene solution and silver nitrate solution to the mixture and then reacting for 1-10 minutes, uniformly stirring the mixture and then adjusting pH value, stirring the mixture for 0.5-1 hour and increasing temperature at 40-80 degrees C, adding reducing agent to the mixture, and stirring. USE - The method is useful for preparation of graphene-nanosilver dispersion liquid (claimed). ADVANTAGE - The method enables simple and easy preparation of graphene-nanosilver dispersion liquid with high efficiency and excellent electrical conductivity and dispersibility. DETAILED DESCRIPTION - The preparation method of graphene-nanosilver dispersion liquid involves adding graphite powder and dispersant to solvent and then uniformly mixing, heating the mixture at 90-110 degrees C for 0.5-2 hours and then centrifugally separating at 4000 rpm, adding polyvinylpyrrolidone aqueous solution, graphene solution and silver nitrate solution to the mixture and then reacting for 1-10 minutes under a power of 100-400 W, uniformly stirring the mixture and then adjusting pH value, ultrasonically stirring the mixture for 0.5-1 hour and then increasing temperature at 40-80 degrees C, adding reducing agent to the mixture, and ultrasonically stirring for 1.5-2 hours.