• 专利标题:   Modifying amino groups on surface of graphene oxide sheets, comprises e.g. adding aminosilane coupling agent into cloudy solution of graphene oxide sheet, mixing, heating and refluxing, feeding protective gas, using absolute ethanol to centrifuge, washing and dispersing in absolute ethanol.
  • 专利号:   CN116161653-A
  • 发明人:   CAI C, FENG Z, WANG T
  • 专利权人:   BEIJING TANSUO INTELLIGENT MFG TECHNOLOGY CO LTD
  • 国际专利分类:   C01B032/198
  • 专利详细信息:   CN116161653-A 26 May 2023 C01B-032/198 202352 Chinese
  • 申请详细信息:   CN116161653-A CN10158696 20 Feb 2023
  • 优先权号:   CN10158696

▎ 摘  要

NOVELTY - Modifying amino groups on the surface of graphene oxide sheets, comprises (a) under anhydrous conditions, using toluene as a dispersant to prepare 0.4 mg/ml graphene oxide sheet (GO) turbid solution, (b) adding the ≮ 0.5 wt.% aminosilane coupling agent into the cloudy solution of graphene oxide sheet, stirring and mixing, (c) heating and refluxing the system at 85-105℃ for 12-15 hours, and continue to feed the protective gas during the heating process, and (d) using absolute ethanol to centrifuge and washing the product, and dispersing in absolute ethanol for storage. USE - The method is useful for modifying amino groups on surface of graphene oxide sheets. Uses include but are not limited to plastic, rubber, ceramic, coating, cosmetic and medicine carrier. ADVANTAGE - The method has good operability and strong repeatability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for an oxidized graphene sheet of modified amino prepared by the method as mentioned above.