▎ 摘　　要

NOVELTY - A re-dispersible dry graphene powder is produced by producing solution of graphene sheets in solvent, adding surfactant to solution, and drying solution to produce dry graphene sheets coated with surfactant. USE - Production of re-dispersible dry graphene powder (claimed) for making composite. ADVANTAGE - Restacking and precipitation of graphene flakes in colloidal solution are prevented and transportation costs are reduced. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a re-dispersible graphene powder comprising dry, substantially non-oxidized graphene sheets and surfactant coating on graphene sheets. DESCRIPTION OF DRAWING(S) - The drawing shows an explanatory view of the re-dispersion of graphene powder. Dispersed form (12) Dry form (20)