• 专利标题:   Construction of high strength and high thermal conductivity three-dimensional graphene heat dissipation material, involves preparing graphene oxide dispersion, highly oriented treating graphene oxide, and freeze-drying.
  • 专利号:   CN106967392-A
  • 发明人:   HE X, LI Y, LIN Z, PENG Q, SUN X, XU F
  • 专利权人:   HARBIN HEZI NEW MATERIAL TECHNOLOGY CO
  • 国际专利分类:   C09K005/14
  • 专利详细信息:   CN106967392-A 21 Jul 2017 C09K-005/14 201761 Pages: 8 Chinese
  • 申请详细信息:   CN106967392-A CN10291721 28 Apr 2017
  • 优先权号:   CN10291721

▎ 摘  要

NOVELTY - The construction method of high strength and high thermal conductivity three-dimensional graphene heat dissipation material involves (i) preparing graphene oxide dispersion, (ii) highly oriented treating graphene oxide, (iii) freeze-drying to obtain an oxidized graphene foam, (iv) reducing oxidized graphene foam with hydrazine hydrate to obtain a graphene foam, (v) placing the graphene foam in a graphite mold, pressurizing at a constant rate to obtain preform, and (vi) hot-pressing and sintering the preform. USE - Construction of high strength and high thermal conductivity three-dimensional graphene heat dissipation material (claimed). ADVANTAGE - The method enables the construction of compact three-dimensional graphene heat dissipation material with thermal conductivity of 1800 W/(m.K), high strength, and excellent processing performance.