• 专利标题:   Graphene-silicon rubber complex material comprises natural crystalline flake graphite powder, reducing agent, ester coupling agent, silicone rubber, curing agent, and boron nitride.
  • 专利号:   CN114085530-A, CN114085530-B
  • 发明人:   CUI S, WU W
  • 专利权人:   UNIV EAST CHINA SCI TECHNOLOGY, UNIV EAST CHINA SCI TECHNOLOGY
  • 国际专利分类:   C08K003/04, C08K003/38, C08K007/00, C08K007/24, C08K009/04, C08L083/04, C09K005/14
  • 专利详细信息:   CN114085530-A 25 Feb 2022 C08L-083/04 202270 Chinese
  • 申请详细信息:   CN114085530-A CN11329690 10 Nov 2021
  • 优先权号:   CN11329690

▎ 摘  要

NOVELTY - Graphene-silicon rubber complex material comprises 2 pts. wt. natural crystalline flake graphite powder, 10-50 pts. wt. reducing agent, 40-100 pts. wt. ester coupling agent, 100 pts. wt. silicone rubber, 2 pts. wt. curing agent, and 30 pts. wt. boron nitride. USE - Used as graphene-silicon rubber complex material. ADVANTAGE - The material: is economical and suitable for mass production; and has significantly reduced interfacial thermal resistance, significantly improved thermal conductivity and mechanical properties, and simple and efficient production process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the graphene-silicon rubber complex material, comprising (i) (1) fabricating graphene oxide (GO) with natural crystalline flake graphite powder using Hummers method to obtain GO suspension, ultrasonically treating, and completely dispersing, (2) adding the ester coupling agent to the GO suspension, and stirring suspension at room temperature, (3) adding reducing agent and GO suspension to the above mixed suspension, and ultrasonically treating, (4) heating to obtain a modified high-quality graphene hydrogel, (5) cooling the functionalized three-dimensional hydrogel to room temperature, and freeze-drying to obtain modified graphene aerogel, (6) mixing and stirring the silicone rubber with the curing agent and the sheet boron nitride, immersing the mixture of silicone rubber, curing agent and sheet boron nitride in the graphene aerogel under vacuum conditions, and heating and curing the complex material at 150degreesC.