• 文献标题:   Formation of graphene oxide-based ordered structures in epoxy: effect of grafted polymer chains
  • 文献类型:   Article
  • 作  者:   KELNAR I, KAPRALKOVA L, KREJCIKOVA S, ZHIGUNOV A, DYBAL J, PAVLOVEC L, JANATA M
  • 作者关键词:   epoxy nanocomposite, mechanical propertie, microstructure, graphene oxide, grafting
  • 出版物名称:   POLYMERPLASTICS TECHNOLOGY MATERIALS
  • ISSN:   2574-0881 EI 2574-089X
  • 通讯作者地址:  
  • 被引频次:   5
  • DOI:   10.1080/25740881.2021.1876882 EA JAN 2021
  • 出版年:   2021

▎ 摘  要

Graphene oxide (GO) has high potential for grafting of polymer chains. This mostly enhances exfoliation or controls structure-directing effects in thermoplastic blends, whereas various complex arrays may be formed in the case of epoxy thermosets. This study reveals that the structure of these arrays is markedly influenced by parameters of grafted polymer chains and geometry of grafting. The best-balanced properties were found for nacre-mimicking lamellar arrays with an important role of internal structure and elasticity of grafted chains. Beneficial is s relatively thick "elastic interlayer" of grafted butadiene-acrylonitrile copolymer with toughening effect comparable to much higher content of free polymer addition. [GRAPHICS]