• 专利标题:   Forming polymer/graphene nanocomposite used in articles using surface conductivity involves irradiating polymer blend comprising polyetherimide and polycarbonate and having specified melt volume rate with radiation of specific wavelength.
  • 专利号:   US2020087467-A1, DE102019124736-A1
  • 发明人:   SHAFAEI S, SHETH K C
  • 专利权人:   SABIC GLOBAL TECHNOLOGIES BV, SABIC GLOBAL TECHNOLOGIES BV
  • 国际专利分类:   C08J003/28, C08K003/04, C08L069/00, C08L079/08
  • 专利详细信息:   US2020087467-A1 19 Mar 2020 C08J-003/28 202029 Pages: 11 English
  • 申请详细信息:   US2020087467-A1 US569096 12 Sep 2019
  • 优先权号:   EP194641

▎ 摘  要

NOVELTY - Forming a polymer/graphene nanocomposite, comprises: providing a polymer blend comprising a polyetherimide and a polycarbonate; and irradiating the polymer blend with radiation comprising a wavelength of 8.3-11 mu m to provide the polymer/graphene nanocomposite, where the polymer blend has a melt volume rate of 1-100 cm3/10 minute, as determined at 360 degrees C/5 kg in accordance with ISO 1133. USE - The method is useful for forming polymer/graphene nanocomposite, which is useful in an article (claimed), preferably articles using surface conductivity. ADVANTAGE - The method produces the polymer/graphene nanocomposite, which has: an electrical conductivity of 10-1000 S/m, measured according to ASTM 257-75, and a degree of graphitization of 0.5-2, measured according to ISO TC 201 (surface chemical analysis) and further according to Versailles project on advanced materials and standards by VAMAS TWA 41-graphene and VAMAS TWA 42-Raman; a gas barrier property; and increased surface area, thermal conductivity, electrical conductivity, hydrophobicity and/or antimicrobial properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for the polymer/graphene nanocomposite formed by the method, where the nanocomposite comprises the polymer blend as polymer, and polymer-derived graphene.