• 专利标题:   Preparing high-efficient heat-conducting surface-modified graphene film, comprises e.g. coating graphene oxide aqueous dispersion onto substrate, immersing substrate in coagulating liquid, drying, coating dispersion and post processing.
  • 专利号:   CN110560342-A
  • 发明人:   MIN Y, JIAN L, LIU Y
  • 专利权人:   YANCHENG ZENGCAI TECHNOLOGY CO LTD
  • 国际专利分类:   B05D001/18, B05D001/38, B05D003/00, B05D007/24, C03C017/34
  • 专利详细信息:   CN110560342-A 13 Dec 2019 B05D-001/18 202006 Pages: 5 Chinese
  • 申请详细信息:   CN110560342-A CN10895844 21 Sep 2019
  • 优先权号:   CN10895844

▎ 摘  要

NOVELTY - Preparing high-efficient heat-conducting surface-modified graphene film, comprises coating graphene oxide aqueous dispersion onto the substrate, then immersing the substrate with dispersion in coagulating liquid, taking out the substrate, drying to obtain single-layered self-assembled composite graphene oxide film, coating the carbon nanotube dispersion onto the substrate with composite film, repeating immersing and drying process to obtain multi-layered self-assembled high-efficient heat-conducting composite graphene oxide film, and coating nano metal powder dispersion onto the surface to obtain final product, where the graphene oxide aqueous dispersion or nano metal powder and carbon nanotube dispersion are obtained by ultrasonically dispersing and mixing components in distilled water; and the solute of the coagulating liquid is ionic liquid, amine or inorganic salt. USE - The method is useful for preparing high-efficient heat-conducting surface-modified graphene film. ADVANTAGE - The method: is easy to operate and suitable for mass production; has low production cost; improves thermal conductivity in Z-direction; and ensures high mechanical performance of graphene film.