• 文献标题:   Ultrahigh Thermal Conductivity of Assembled Aligned Multi layer Graphene/Epoxy Composite
  • 文献类型:   Article
  • 作  者:   LI Q, GUO YF, LI WW, QIU SQ, ZHU C, WEI XF, CHEN ML, LIU CJ, LIAO ST, GONG YP, MISHRA AK, LIU LW
  • 作者关键词:  
  • 出版物名称:   CHEMISTRY OF MATERIALS
  • ISSN:   0897-4756 EI 1520-5002
  • 通讯作者地址:   Chinese Acad Sci
  • 被引频次:   140
  • DOI:   10.1021/cm501473t
  • 出版年:   2014

▎ 摘  要

The exceptional thermal conductivity of graphene is expected to endow polymer composites with ultrahigh thermal conductivities, which can be even similar to those of some metals such as stainless steel and aluminum alloy. The thermal conductivities of composites prepared by dispersing multilayer graphene (MLG) in epoxy matrix increase only by an order of magnitude over the pure epoxy. However, the improvement has been limited since the large interfacial thermal resistance exists between graphene and the surrounding epoxy. We have reported an extraordinary increase in thermal conductivity of the MLG/epoxy composites through the fabrication of the vertically aligned and densely packed MLG in the epoxy matrix. The ultrahigh thermal conductivity of 33.54 W/(m K) has been achieved in the aligned MLG/epoxy composite (AG/E). The thermal conductivity of AG/E exhibits a positive temperature response related to the aligned structure while increasing the temperature from 40 degrees C to 90 degrees C.