• 专利标题:   Thermal conductive material useful for CPU, contains polypropylene-modified silicone grease, pentaerythritol, ethyl acetate, silicone oil, metal powder additive, zinc oxide, boron nitride, silicon carbide, carbon nanotube and graphene.
  • 专利号:   CN107099146-A
  • 发明人:   ZHANG R
  • 专利权人:   HEFEI ZHANYOU SOFTWARE DEV CO LTD
  • 国际专利分类:   C08K013/04, C08K003/04, C08K003/08, C08K003/22, C08K003/28, C08K003/34, C08K003/38, C08K005/053, C08K005/10, C08K005/101, C08K005/54, C08K007/24, C08L023/06, C08L033/26, C08L083/04
  • 专利详细信息:   CN107099146-A 29 Aug 2017 C08L-083/04 201776 Pages: 7 Chinese
  • 申请详细信息:   CN107099146-A CN10414867 05 Jun 2017
  • 优先权号:   CN10414867

▎ 摘  要

NOVELTY - Thermal conductive material comprises 25-35 pts. wt. polypropylene-modified silicone grease, 14-18 pts. wt. pentaerythritol, 5-10 pts. wt. ethyl acetate, 12-16 pts. wt. silicone oil, 15-25 pts. wt. metal powder additive, 12-16 pts. wt. zinc oxide, 10-14 pts. wt. boron nitride, 12-14 pts. wt. silicon carbide, 4-6 pts. wt. carbon nanotube, 2-8 pts. wt. graphene, 3-5 pts. wt. coupling agent, 1-5 pts. wt. polyethylene wax, 2-4 pts. wt. polyacrylamide and 5-8 pts. wt. aluminum nitride. USE - Thermal conductive material is useful for CPU. ADVANTAGE - The thermal conductive material has high thermal conductivity and excellent heat dissipation effect, weather resistance, coating property and paving performance, and can be prepared in an economical, easy and simple manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the method for preparing the thermal conductive material, which involves (a) melting metal powder additive, aluminum nitride, zinc oxide, boron nitride and silicon carbide into a liquid state, putting the mixture into a chemical vapor deposition furnace, carrying out heat preservation at 1300-1400 degrees C for 2-3 hours, cooling and crushing the mixture in a high-speed crushing machine over 800-1200 mesh sieve to obtain a mixed powder (I), (b) adding polypropylene-modified silicone grease, pentaerythritol and ethyl acetate to a mixer, stirring at 150-200 rpm for 15-25 minutes, adding polyethylene wax and polyacrylamide and continuously stirring at 200-250 rpm for 10-20 minutes to obtain a mixture (II), (c) adding the mixed powder (I), the mixture (II), coupling agent, silicone oil, carbon nanotube and graphene to a high-speed mixer, stirring at a temperature of 55-65 degrees C and a speed of 300-400 rpm for 1-2 hours and naturally cooling to obtain the thermal conductive material.