• 专利标题:   Wearable graphene heat conductive paint useful for heat conductive coating of electronic device, comprises e.g. graphene, epoxy resin, phenolic resin, antifoaming agent, antiaging agent, heat conductive auxiliary powder and solvent.
  • 专利号:   CN112812599-A
  • 发明人:   WANG Y, SHI H
  • 专利权人:   NANJING YOUGU INTELLECTUAL PROPERTY SERV
  • 国际专利分类:   C09D004/02, C09D004/06, C09D007/61, H05K007/20
  • 专利详细信息:   CN112812599-A 18 May 2021 C09D-004/06 202150 Pages: 8 Chinese
  • 申请详细信息:   CN112812599-A CN11623717 31 Dec 2020
  • 优先权号:   CN11623717

▎ 摘  要

NOVELTY - Wearable graphene heat conductive paint comprises 10-25 pts. wt graphene, 8-15 pts. wt epoxy resin, 8-15 pts. wt phenolic resin, 8-10 pts. wt N-hydroxymethyl acrylamide, 5-10 pts. wt dispersant, 8-12 pts. wt binding agent, 2-5 pts. wt antifoaming agent, 3-6 pts. wt antiaging agent, 12-15 pts. wt nano inorganic oxide, 5-8 pts. wt nano chromium powder, 5-8 pts. wt heat conductive auxiliary powder and 28-32 pts. wt solvent, where the antifoaming agent is dimethyl silicone polymer, the anti-aging agent is anti-aging agent RD, the nano inorganic oxide is nano titanium dioxide and/or nano zirconium dioxide with a mass of 1:0.8-1.2, the grain diameter of the nano chromium powder is 80-100nm, and the solvent is absolute ethyl alcohol. USE - The heat conductive paint is useful for heat conductive coating of electronic device (claimed). ADVANTAGE - The heat conductive paint: solves the problem of low wear resistance of the conventional graphene heat conductive paint. DETAILED DESCRIPTION - An INDEPENDENT CLAIM also is included for: preparing the wear-resistant graphene heat conductive paint, comprising (a) adding graphene and dispersant into the solvent, ultrasonically dispersing for 30-60minutes to obtain a graphene dispersion liquid, (b) adding the graphene dispersion liquid into the mixture of epoxy resin and phenolic resin, stirring at 60-80 degrees C under the speed of 600-800revolutions/minute for 1.5-3hours, (c) adding N-hydroxymethyl acrylamide, binding agent, antifoaming agent, anti-aging agent, nano inorganic oxide, nano chromium powder and heat conductive auxiliary powder, continuously stirring for 3-5hours, (d) sealing the mixed slurry obtained in step (c), and allowing to stand for 2-5 hours at 30-50 degrees C until the bubble disappears to obtain the wear-resistant graphene heat conductive paint