• 专利标题:   Preparing oil-soluble graphene by dispersing graphene oxide in solvent, adding ammonia based reducing agent, naturally filtering using filter paper, adding long carbon chain compounds, and reacting in atmospheric container.
  • 专利号:   CN110627041-A
  • 发明人:   ZHANG L, MA Y, YIN S, LI H, LI M, TANG H
  • 专利权人:   UNIV TIANJIN TECHNOLOGY
  • 国际专利分类:   C01B032/184, C01B032/194
  • 专利详细信息:   CN110627041-A 31 Dec 2019 C01B-032/184 202009 Pages: 6 Chinese
  • 申请详细信息:   CN110627041-A CN10647876 22 Jun 2018
  • 优先权号:   CN10647876

▎ 摘  要

NOVELTY - Method for preparing oil-soluble graphene involves (a) dispersing graphene oxide in solvent (A), adding ammonia based reducing agent to perform partial reduction reaction at 20-200 degrees C for 1-48 hours, (b) after natural filtration or vacuum filtration using a filter paper or a membrane, dispersing the obtained filter cake in solvent (B), (c) adding long carbon chain compounds containing hydroxyl or amino groups and orthoformate, and (d) reacting in an atmospheric container or autoclave at 20-200 degrees C for 0.1-48 hours and separating to obtain oil-soluble graphene. USE - The method is used for preparing oil-soluble graphene. ADVANTAGE - The method chemically modifies the surface structure of graphene by using readily available long-chain compounds containing hydroxyl or amino groups and orthoformate, produces environmentally-friendly graphene product with excellent oil solubility and energy saving effect, improves dispersion and stability of graphene in solvents, does not introduce chloride ions, and is beneficial to industrial production.