• 专利标题:   Polyethylene/titanium diboride/graphene thermo-sensitive conductive composite material comprises e.g. low density polyethylene, titanium diboride, carbon black, graphene, high density polyethylene, stearic acid and antimony trioxide.
  • 专利号:   CN111978620-A
  • 发明人:   DU Y, YUAN X
  • 专利权人:   HEFEI JINSIDA TECHNOLOGY CO LTD
  • 国际专利分类:   C08J003/24, C08J003/28, C08K013/02, C08K003/04, C08K003/38, C08L023/06
  • 专利详细信息:   CN111978620-A 24 Nov 2020 C08L-023/06 202002 Pages: 9 Chinese
  • 申请详细信息:   CN111978620-A CN10947372 10 Sep 2020
  • 优先权号:   CN10947372

▎ 摘  要

NOVELTY - Polyethylene/titanium diboride/graphene thermo-sensitive conductive composite material comprises low density polyethylene, titanium diboride, carbon black, graphene and high density polyethylene as main material, and antioxidant 1010 (pentaerythritol tetrakis(3-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionate)), stearic acid, coupling agent vinyl trimethoxysilane, antimony trioxide and flame retardant decabromodiphenyl ethane as processing aid. USE - Used as polyethylene/titanium diboride/graphene thermo-sensitive conductive composite material. ADVANTAGE - The composite material: has low room temperature resistivity, high pressure resistance, high current resistance, long-term flow and stable performance, high phenylthiocarbamide strength and high phenylthiocarbamide stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing polyethylene/titanium diboride/graphene thermo-sensitive conductive composite material, comprising (i) mixing main material mixture and processing aid at 160-180 degrees C for 60-80 minutes to obtain mixture, (ii) molding the step (i) mixture under the conditions of molding temperature of 140 plus minus 5/oC and molding pressure of 18 plus minus 2 MPa to obtain molding material, (iii) irradiating the step (ii) molding material with gamma rays, (iv) heating the step (iii) irradiated molding material at 130-135 degrees C, and maintaining temperature for 3-3.5 hours, and (v) freezing the step (iv) heat-treated molding material at -10 to -20 degrees C for 2.5-3 hours.