• 专利标题:   Medium-to-high temperature graphene heating slurry comprises graphene, carbon nanotubes, dimethylformamide, n-butanol, thermoplastic polyurethane elastomer rubber, natural mica, and N-methylpyrrolidone.
  • 专利号:   CN113150665-A
  • 发明人:   CHEN D
  • 专利权人:   NEW MORE GRAPHENE APPL TECHNOLOGY CO LTD
  • 国际专利分类:   C09D175/04, C09D007/61, C09D007/65, H05B003/14
  • 专利详细信息:   CN113150665-A 23 Jul 2021 C09D-175/04 202175 Pages: 9 Chinese
  • 申请详细信息:   CN113150665-A CN10042739 13 Jan 2021
  • 优先权号:   CN10042739

▎ 摘  要

NOVELTY - Medium-to-high temperature graphene heating slurry comprises 2-7 pts. wt. graphene, 2-7 pts. wt. carbon nanotubes, 0.5-2 pts. wt. dimethylformamide, 0.1-1.5 pts. wt. n-butanol, 1-6 pts. wt. thermoplastic polyurethane elastomer rubber, 2-5 pts. wt. natural mica, and 80-95 pts. wt. N-methylpyrrolidone. USE - Medium-to-high temperature graphene heating slurry. ADVANTAGE - The slurry has excellent heat conduction effect and stable heat resistance properties after formed into a film. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a method for preparing the slurry involving (a) mixing carbon nanotubes, dimethylformamide, n-butanol, thermoplastic polyurethane elastomer rubber, natural mica, N-methylpyrrolidone and sodium carboxymethyl cellulose and ultrasonically dispersing to obtain uniformly dispersed system, (b) adding the graphite powder to the uniform dispersion system, so that the graphite gradually delaminates under ultrasonic treatment, as the gap between the graphite layers gradually increases, the carbon nanotubes enters the gap between graphite layers with the liquid in the system until the graphite is exfoliated into graphene in the liquid system, and (c) removing part of N-methylpyrrolidone to obtain the product; and (2) a method for forming the paste involving (i) coating the heating slurry on the surface of the substrate, and (ii) vacuum drying to form a film after film formation.