▎ 摘 要
NOVELTY - Preparation of a graphene oxide/phenolic resin film comprises uniformly mixing graphene oxide and N-methyl pyrrolidone, performing ultrasonic treatment, standing, taking supernatant, heat-treating the supernatant to 70-180 degrees C to obtain a solid powder, washing the solid powder with ethanol, heat-treating at 50-100 degrees C for 2-4 hours, and washing twice with ethanol to obtain graphene oxide/phenolic resin suspension; heating phenol and formaldehyde to 50-55 degrees C, adding sodium hydroxide, and continuously heating at constant temperature to obtain a reddish brown water-soluble phenolic resin; and adding the graphene oxide/phenolic resin suspension to the water-soluble phenolic resin, magnetic stirring at room temperature, vacuum oven-drying to remove solvent, crushing, pressing powder with mortar to thin sheet at 160 degrees C and 0.06 MPa. USE - Method for preparing a graphene oxide/phenolic resin film. ADVANTAGE - The graphene oxide/phenolic resin film has improved electrical conductivity.