• 专利标题:   Preparing graphene conductive additive useful for conductive ink e.g. adding graphene oxide to water, ultrasonically dispersing to obtain graphene oxide dispersion, adding isocyanate oligomer and silane, heating and adding aqueous ammonia.
  • 专利号:   CN108912846-A
  • 发明人:   CHEN Q, ZAN H
  • 专利权人:   CHENGDU NEW KELI CHEM SCI CO LTD
  • 国际专利分类:   C09D011/52
  • 专利详细信息:   CN108912846-A 30 Nov 2018 C09D-011/52 201901 Pages: 8 Chinese
  • 申请详细信息:   CN108912846-A CN10696287 29 Jun 2018
  • 优先权号:   CN10696287

▎ 摘  要

NOVELTY - Preparing graphene conductive additive comprises (a) adding graphene oxide to water, ultrasonically dispersing to obtain graphene oxide dispersion, adding isocyanate oligomer and silane, heating to 60-100 degrees C, adding aqueous ammonia, absolute ethanol and reducing agent and mixing to obtain graphene-doped silicon dioxide (SiO2) gel by sol-gel method; and (b) filtering graphene-doped SiO2 gel obtained in step (a) by suction, calcining and removing organic component to obtain three-dimensional porous structure of graphene-loaded SiO2 microspheres, where graphene conductive additive for conductive ink comprises complete three-dimensional conductive network structure. USE - The graphene conductive additive is useful for conductive ink (claimed). ADVANTAGE - The graphene conductive additive has more stable conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene conductive additive, prepared by above mentioned method.