• 专利标题:   Graphene and metal fiber modified copolymer material comprises polyamide, acrylonitrile-butadiene-styrene copolymer, maleic anhydride-grafted acrylonitrile-butadiene-styrene copolymer, graphene, metal fiber and stearic acid.
  • 专利号:   CN110511561-A
  • 发明人:   ZHANG N
  • 专利权人:   CHANGZHOU VOCATIONAL LIGHT IND INST
  • 国际专利分类:   C08K003/04, C08K005/09, C08K007/06, C08L051/00, C08L055/02, C08L077/02, C08L077/06
  • 专利详细信息:   CN110511561-A 29 Nov 2019 C08L-077/06 201996 Pages: 5 Chinese
  • 申请详细信息:   CN110511561-A CN10483710 21 May 2018
  • 优先权号:   CN10483710

▎ 摘  要

NOVELTY - Graphene and metal fiber modified polyamide/acrylonitrile-butadiene-styrene copolymer (PA/ABS) material comprises 100 pts. wt. polyamide, 40-100 pts. wt. acrylonitrile-butadiene-styrene copolymer, 5-20 pts. wt. maleic anhydride-grafted-acrylonitrile-butadiene-styrene copolymer, 1-20 pts. wt. graphene, 1-20 pts. wt. metal fiber and 0.5-2 pts. wt. stearic acid. USE - As a graphene and metal fiber modified PA/ABS thermally conductive material. ADVANTAGE - The material reduces usage amount of graphene, is cost-effective, has high thermal conductivity of more than 5 W/m.K, surface resistance of less than 107 Omega , tensile strength of more than 75 MPa and impact strength of more than 90 KJ/m2, and has high antistatic properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the material involving mixing polyamide, acrylonitrile-butadiene-styrene copolymer and maleic anhydride-grafted-acrylonitrile-butadiene-styrene copolymer in a high-speed mixer at 90 degrees C for 5-20 minutes, adding stearic acid within 5 minutes, finally adding graphene and mixing for 5-10 minutes, discharging the mixture, adding the mixed material into a twin-screw extruder to extrude and palletizing at 220-270 degrees C, adding the metal fiber through the fiber opening of the extruder at a fiber inlet temperature of 230-250 degrees C to obtain the product.