• 专利标题:   Preparing high thermal conductivity graphene thick film, involves preparing slurry containing graphite oxide and water, scraping slurry onto base film to form wet film and drying coated base film in hot air oven by circular segmentation method so that graphene dry film is formed after baking.
  • 专利号:   CN115818627-A
  • 发明人:   WU H, ZHAO L
  • 专利权人:   SHENZHEN XIDAO TECHNOLOGY CO LTD
  • 国际专利分类:   C01B032/184
  • 专利详细信息:   CN115818627-A 21 Mar 2023 C01B-032/184 202328 Chinese
  • 申请详细信息:   CN115818627-A CN11084085 06 Sep 2022
  • 优先权号:   CN11084085

▎ 摘  要

NOVELTY - Preparing a high thermal conductivity graphene thick film, involves: preparing a slurry containing 3-12 wt.% graphite oxide and balance of water; scraping the slurry onto a base film by a scraper coating method to form a wet film, where the thickness of the graphite oxide wet film on the base film is 2 12 mm; and drying the coated base film in a hot air oven by circular segmentation method so that one section of the segmented oven is heated by magnetic induction and a graphene dry film is formed after baking. USE - Method for preparing a high thermal conductivity graphene thick film. ADVANTAGE - The method enables to improve drying temperature of the wet film and blowing volume on the upper and lower surfaces of the wet film, prepare high thermal conductivity graphene thick film i.e. an ideal graphene dry film, improve drying efficiency and realize very obvious power saving effect. DESCRIPTION OF DRAWING(S) - The drawing shows schematic view of an arrangement change of graphite micro-sheet before and after magnetic induction heating of graphene film. (Drawing includes non-English language text). 1Graphene wet film