• 文献标题:   The microstructural, mechanical and electro-mechanical properties of graphene aerogel-PVDF nanoporous composites
  • 文献类型:   Article
  • 作  者:   ZHENG GP, HAN Z, LIU YZ
  • 作者关键词:   graphene aerogel, poly vinylidene fluoride, nanoporous structure, nanocomposite, electromechanical propertie
  • 出版物名称:   JOURNAL OF NANO RESEARCH
  • ISSN:   1662-5250 EI 1661-9897
  • 通讯作者地址:   Hong Kong Polytech Univ
  • 被引频次:   1
  • DOI:   10.4028/www.scientific.net/JNanoR.29.1
  • 出版年:   2014

▎ 摘  要

Graphene aerogel-poly(vinylidene fluoride) (GA-PVDF) nanoporous composites with different concentrations of PVDF are fabricated. Scanning electron microscopy reveals that PVDF films with a typical thickness below 100 nm are coated at the graphene sheets in the nanoporous composites. The GA-PVDF composites show excellent compressibility, ductility and mechanical strength, as well as better sensitivity of stress-dependent electrical resistance compared with those of GAs. The improved mechanical and electro-mechanical behaviours of nanoporous composites are ascribed to the PVDF which possesses piezoelectricity. The structural properties of the graphene-PVDF nano-sized hybrid scaffolds are analyzed by dynamical mechanical relaxation. The results demonstrate that the nanoporous composites could be used as high-performance sensors, actuators and kinetic energy harvesters.