▎ 摘　　要

NOVELTY - Method for improving dispersibility and interface compatibility of graphene in epoxy resin, involves (i) adding graphene oxide and disproportionate rosin purified product dehydroabietic acid, ultrasonically dispersing, dissolving in co-solvent, removing co-solvent to obtain graphene oxide/dehydroabietic acid powder, (ii) placing the obtained powder in reducing agent, reacting to obtain graphene/dehydroabietic acid powder, (iii) reacting graphene/dehydroabietic acid powder with polyamine to obtain graphene/rosin-based polyamine, (iv) mixing and curing with epoxy resin. USE - Method for improving dispersibility and interface compatibility of graphene in epoxy resin. ADVANTAGE - The preparation method is easy to operate, and does not require to use surfactants, and disperses the graphene in the epoxy resin without using solvents. DETAILED DESCRIPTION - Method for improving dispersibility and interface compatibility of graphene in epoxy resin, involves (i) adding graphene oxide and disproportionate rosin purified product dehydroabietic acid in any ratio, stirring, ultrasonically dispersing and dissolving in co-solvent, then removing co-solvent by evaporation of graphene oxide/dehydroabietic acid solution to obtain graphene oxide/dehydroabietic acid powder, (ii) placing graphene oxide/dehydroabietic acid powder in a reducing agent of graphene oxide, and reacting to obtain graphene/dehydroabietic acid powder, (iii) reacting graphene/dehydroabietic acid powder with polyamine to obtain graphene/rosin-based polyamine where the molar ratio of polyamine to dehydroabietic acid is (4-2):1, (iv) mixing and curing graphene/rosin-based polyamine and epoxy resin in a mass ratio of 1:1-1:4 to obtain homogeneous dispersed graphene/epoxy resin composite material.