• 文献标题:   Hierarchical xanthan gum/graphene oxide nanocomposite film induced by ferric ions coordination
  • 文献类型:   Article
  • 作  者:   LIU SL, YAO F, KANG MM, ZHAO SQ, HUANG QQ, FU GD
  • 作者关键词:   hierarchical, graphene oxide, xanthan gum, ferric ions coordination, composite film
  • 出版物名称:   MATERIALS DESIGN
  • ISSN:   0264-1275 EI 1873-4197
  • 通讯作者地址:   Southeast Univ
  • 被引频次:   11
  • DOI:   10.1016/j.matdes.2016.09.105
  • 出版年:   2017

▎ 摘  要

Light-weight and high-performance nanocomposites that contain reinforcements with preferred orientation have attracted significant attention. Here, a hierarchical, lightweight, and nacre-like graphene oxide (GO) and xanthan gum (XG) nanocomposite film was fabricated via a simple, rapid, economic, and green method. Graphene oxide and xanthan gum were used in making of "bricks and mortar" and forced to self-assemble into GO/XG-Fe(III) hydrogel via ferric ions coordination. Oriented and hierarchical GO/XG-Fe(III) nanocomposite film was obtained by drying the hydrogel. Due to the well-defined hierarchical structure and coordination bond, the GO/XG-Fe(III) nanocomposite film exhibited high strength of 93.6 +/- 3.82 MPa. Accompanied by the mechanical strength, specific thermal conductivity on the parallel and perpendicular direction was obtained due to the anisotropy of the GO nanosheets in the nanocomposite film. Furthermore, the stability of the GO/XG-Fe( III) nanocomposite film against various organic solvents and acidic solution was demonstrated. It may enable these materials to be used in aerospace, electronic devices, biological membranes and scaffolds. (C) 2016 Published by Elsevier Ltd.