▎ 摘　　要

NOVELTY - Ethylenediamine modified graphene is obtained by reducing ethylene oxide by graphene oxide. USE - Ethylenediamine modified graphene used in modified graphene dispersion and paint (all claimed). ADVANTAGE - Ethylenediamine modified graphene has good dispersibility in an oil-based paint, is suitable for adding to a variety of oily coatings and has enhanced corrosion resistance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a method for preparing ethylenediamine modified graphene, which involves dispersing oxidized graphene in an alcoholic solvent, then adding a surfactant; (2) dissolving surface active agent, heating at 60 to 80 degrees C; (3) adding ethylenediamine; (4) sealing reaction at the same temperature; (5) filtering, washing to obtain ethylene diamine-modified graphene; and (6) a modified graphene dispersion, which is obtained by dispersing ethylene diamine-modified graphene in an organic solvent.