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  • 专利标题:   Preparing graphene oxide-nano-silica composite material, comprises e.g. mixing graphene oxide, ethanol and water to form graphene oxide dispersion, mixing dispersion with ammonia water, and adding orthosilicate to carry out graft reaction.
  • 专利号:   CN108862265-A
  • 发明人:   CUI H, YANG H, TANG L, XING F, BAO X, DONG Z
  • 专利权人:   UNIV SHENZHEN
  • 国际专利分类:   C01B032/198, C01B033/18, C04B014/02, C04B020/02
  • 专利详细信息:   CN108862265-A 23 Nov 2018 C01B-032/198 201901 Pages: 12 Chinese
  • 申请详细信息:   CN108862265-A CN10791799 18 Jul 2018
  • 优先权号:   CN10791799

▎ 摘　　要

NOVELTY - Preparing graphene oxide-nano-silica composite material, comprises mixing graphene oxide, ethanol and water to obtain a graphene oxide dispersion, mixing the graphene oxide dispersion with ammonia water, and adding orthosilicate to the obtained mixture at 35-60 degrees C to carry out a graft reaction to obtain a graphene oxide-nano-silica composite material. USE - The method is useful for preparing graphene oxide-nano-silica composite material for cement-based composite material (claimed). ADVANTAGE - The graphene oxide-nano-silica composite material has extremely high chemical activity, and improved mechanical properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for the oxidized graphene-nano-silica composite material prepared by the method, comprising graphene oxide and nano-silica bonded to the graphene oxide by covalent bonding.