• 专利标题:   Preparing graphene-polyimide composite resin useful as macromolecular resin, comprises performing polymerizing reaction of graphene powder, dianhydride and diamine in non-polar solvent to obtain prepolymer suspension, suction-filtering, drying and hot press molding.
  • 专利号:   CN115368564-A
  • 发明人:   ZHOU Z, SHAN Y, ZHANG Y, CHEN B, SUN X, DING H
  • 专利权人:   SHANGHAI JINGDUN TECHNOLOGY CO LTD
  • 国际专利分类:   C08G073/10, C08K003/04
  • 专利详细信息:   CN115368564-A 22 Nov 2022 C08G-073/10 202307 Chinese
  • 申请详细信息:   CN115368564-A CN10545203 21 May 2021
  • 优先权号:   CN10545203

▎ 摘  要

NOVELTY - Preparing graphene-polyimide composite resin comprises (i) performing polymerizing reaction of graphene powder, dianhydride and diamine in the non-polar solvent to obtain the prepolymer suspension, suction-filtering prepolymer suspension and drying into powder to obtain the graphene-polyimide resin precursor powder; and (ii) hot press molding graphene-polyimide resin precursor powder. USE - The method is useful for preparing graphene-polyimide composite resin is useful as an engineering material, and macromolecular resin. ADVANTAGE - The method prepares graphene-polyimide composite resin with low shrinkage, few defects, good mechanical performance by directly forming complex shape and thick wall product and uniform and high content graphene with convenient the whole synthesis process, rapid forming speed and low shrinkage and less defect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene-polyimide composite resin, prepared as mentioned above.