• 专利标题:   High thermal conductive wear-resistant high-temperature resistant composite material, comprises e.g. nylon, silicone modified polyester acrylate, modified calcium sulfate whisker, magnesium oxide, modified graphene and toughening agent.
  • 专利号:   CN108822531-A
  • 发明人:   ZHANG B, GUO Y
  • 专利权人:   WUHU YUANKUI NEW MATERIAL TECHNOLOGY CO
  • 国际专利分类:   C08L077/00, C08L067/06, C08L051/06, C08K013/06, C08K003/22, C08K003/04, C08K009/04, C08K009/02, C08K007/08, C09K005/14
  • 专利详细信息:   CN108822531-A 16 Nov 2018 C08L-077/00 201906 Pages: 8 Chinese
  • 申请详细信息:   CN108822531-A CN10753012 10 Jul 2018
  • 优先权号:   CN10753012

▎ 摘  要

NOVELTY - High thermal conductive wear-resistant high-temperature resistant composite material, comprises 60-80 pts. wt. nylon, 10-20 pts. wt. silicone modified polyester acrylate, 1-3 pts. wt. modified calcium sulfate whisker, 5-10 pts. wt. magnesium oxide, 20-30 pts. wt. modified graphene, 4-8 pts. wt. toughening agent, 0.6-1.8 pts. wt. compatibilizer, 0.2-0.6 pts. wt. lubricant, and 0.2-0.6 pts. wt. antioxidant. The modified graphene is mainly prepared by using graphene, pimelic acid and sodium metaaluminate, and the modified calcium sulfate whisker is calcium sulfate whisker, zinc sulfate and aluminate coupling agent. USE - Used as high thermal conductive wear-resistant high-temperature resistant composite material. ADVANTAGE - The material has good thermal conductivity, high temperature resistance and friction resistance and mechanical properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the high thermal conductive wear-resistant high-temperature resistant composite material, comprising (i) nylon, organosilicone modified polyester acrylate, magnesium oxide, modified graphene, flexibilizer, compatibilizer, lubricant and antioxidant, (ii) mixing the nylon, toughening agent, heat conductive nylon master batch of magnesium oxide and modified graphene and stirring uniformly, adding into the twin-screw extruder at the temperature of 250-270 degrees C for extruding and granulating tom obtain heat-conducting nylon master batch, (iii) uniformly mixing re-modified polyester acrylate and silicone, compatibilizer, antioxidant and the modified calcium sulfate whisker with the lubricant, and stirring to obtain mixing material, and (iv) adding into the double screw extruder at 260-280 degrees C to extrude granulation.