▎ 摘　　要

NOVELTY - Producing a graphene ink using a reducing solvent, comprises: (a) obtaining graphene oxide from graphite; (b) preparing a graphene powder by primarily reducing the oxidized graphene; (c) mixing a resin and a solvent to prepare a binder; (d) mixing the binder with the graphene powder to prepare a first solution; and (e) dispersing the first solution to produce a graphene ink. USE - The method is useful in producing a graphene ink for forming a graphene sheet, a shielding film, a heat radiation film and an electrode for a flexible substrate (all claimed). ADVANTAGE - The graphene ink exhibits high heat dissipation and electromagnetic shielding properties, and improved electrical conductivity, thermal conductivity and improved dispersibility.