▎ 摘　　要

NOVELTY - An oxidized graphene dispersion comprises graphene oxide, and mixed solvent comprising water, water-soluble alcohol and/or water-soluble ketone. USE - The oxidized graphene dispersion is useful for preparing graphene-modified epoxy resin, which is useful for preparing molded article, where the molded article is useful in electronics, chemical preservative, marine industrial anticorrosive, automobile components such as automobile bumper, wind turbine blade, building components or building materials, aerospace component, oil cans, tanks or pipelines (all claimed). ADVANTAGE - The oxidized graphene dispersion can reduce or avoid emulsification when the graphene oxide dispersion is mixed with epoxy resin. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) use of oxidized graphene dispersion for preparing graphene-modified epoxy resin; (2) preparation of modified epoxy resin, which involves (a) partially or completely reducing graphene oxide to graphene using reducing agent comprising mixed solvent and epoxy resin and (b) removing mixed solvent; (3) molded article obtained by curing modified epoxy resin prepared by the above method, where the molded article further comprises reinforcing fibers; and (4) producing molded article, which involves curing modified epoxy resin.