• 专利标题:   Preparation of graphene oxide/phenolic resin film by heating phenol and formaldehyde, adding sodium hydroxide to obtain phenolic resin, adding graphene oxide/phenolic resin suspension, stirring, oven-drying, crushing, and pressing.
  • 专利号:   CN108504031-A
  • 发明人:   HU Y
  • 专利权人:   SUQIAN CHINA SOUTHERN AIRLINES NEW MATER
  • 国际专利分类:   C08K003/04, C08K009/00, C08L061/10
  • 专利详细信息:   CN108504031-A 07 Sep 2018 C08L-061/10 201873 Chinese
  • 申请详细信息:   CN108504031-A CN10396592 20 Apr 2018
  • 优先权号:   CN10396592

▎ 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.