• 专利标题:   Preparation of graphene/cyanoethyl hydroxyethyl cellulose composite material involves alkalizing and etherifying hydroxyethyl cellulose, pouring graphene oxide solution into mixture, dripping into ethanol for precipitation, and drying.
  • 专利号:   WO2018187922-A1
  • 发明人:   ZHONG L
  • 专利权人:   SHENZHEN PEICHENG TECHNOLOGY CO LTD
  • 国际专利分类:   C08B011/155, C08B011/193, C08K003/04, C08L001/28
  • 专利详细信息:   WO2018187922-A1 18 Oct 2018 C08L-001/28 201875 Pages: 13 Chinese
  • 申请详细信息:   WO2018187922-A1 WOCN079981 11 Apr 2017
  • 优先权号:   WOCN079981

▎ 摘  要

NOVELTY - Preparation of graphene/cyanoethyl hydroxyethyl cellulose composite material involves taking predetermined amount of hydroxyethyl cellulose, adding a mixed solution of isopropanol and ethanol, adding different concentration of sodium hydroxide solution, stirring, dissolving, and alkalizing hydroxyethyl cellulose, dissolving graphene oxide in a dimethylformamide solution, ultrasonically dispersing the solution, taking out the alkalized hydroxyethyl cellulose mixture and squeezing with a suction filtration device, adding a mixed solution of acrylonitrile and dichloromethane for etherifying hydroxyethyl cellulose, stirring, heating by stages, pouring the graphene oxide solution, terminating the reaction with acetic acid, dripping the mixture into ethanol for precipitation, washing with ethanol or deionized water, and drying. USE - Preparation of graphene/cyanoethyl hydroxyethyl cellulose composite material. ADVANTAGE - The method produces graphene/cyanoethyl hydroxyethyl cellulose composite material having excellent electrical conductivity than ordinary materials, and dielectric property.