• 专利标题:   Preparing compact flexible graphene/polystyrene composite heat conducting film involves drying graphene oxide powder, sieving, grinding graphene oxide powder, styrene and zirconium ball, and coating graphene oxide styrene dispersion liquid.
  • 专利号:   CN113387700-A, CN113387700-B
  • 发明人:   WANG W, SONG X, LIU T, XU X, MA L, XU R, HOU S
  • 专利权人:   SHANDONG LEADERNANO TECHNOLOGY CO LTD
  • 国际专利分类:   C04B035/524, C04B035/622, C09K005/14, C08F112/08, C08F002/44, C08K003/04
  • 专利详细信息:   CN113387700-A 14 Sep 2021 C04B-035/524 202182 Pages: 13 Chinese
  • 申请详细信息:   CN113387700-A CN10760495 06 Jul 2021
  • 优先权号:   CN10760495

▎ 摘  要

NOVELTY - Preparing compact flexible graphene/polystyrene composite heat conducting film comprises (i) drying the graphene oxide powder at a certain temperature, and sieving; (ii) adding the specified amount of graphene oxide powder, styrene and zirconium ball into the grinding machine, fully grinding for a certain time to obtain the graphene oxide dispersion liquid, where the ratio of graphene added in styrene ranges from 0.1-6 wt.%; (iii) coating the graphene oxide styrene dispersion liquid into a film with thickness of 1-3 mm, and ventilating and drying at room temperature for a certain time to obtain the graphene oxide/polystyrene composite film; and (iv) placing the graphene oxide/polystyrene composite film in the step (iii) under the environment of inert protective gas, after being treated at a high temperature of 2500-3000 degrees C for a certain period of time. USE - The method is useful for preparing compact flexible graphene/polystyrene composite heat conducting film. ADVANTAGE - The method is simple. The film has good flexibility, complete structure, high strength and large heat conductivity coefficient.