• 文献标题:   Electrical, thermal and rheological properties of low-density polyethylene/ethylene vinyl acetate/graphene-like composite
  • 文献类型:   Article
  • 作  者:   AZIZI S, OUELLETPLAMONDON CM, NGUYENTRI P, FRECHETTE M, DAVID E
  • 作者关键词:   ldpe/eva blend, electrical propertie, graphenelike, rheological propertie
  • 出版物名称:   COMPOSITES PART BENGINEERING
  • ISSN:   1359-8368 EI 1879-1069
  • 通讯作者地址:   Univ Quebec
  • 被引频次:   5
  • DOI:   10.1016/j.compositesb.2019.107288
  • 出版年:   2019

▎ 摘  要

Composites of low-density polyethylene (LDPE), ethylene vinyl acetate (EVA), and a graphene-like material were explored for their electrical properties for use in high-volume low-cost conductive applications. A graphene-like material, obtained from hybrid clay-sucrose carbonization, was investigated as an alternative filler with advantages over conventional graphene technology. The electrical properties of the composites as synthesized by the solvent-casting technique were studied using broadband dielectric spectroscopy. The percolation threshold was identified for both as synthesized and annealed composite samples. Due to charge transport and electrode polarization, the sub-percolating composites exhibited low frequency dispersion particularly at elevated temperatures. Composites of LDPE/EVA/graphene-like above the percolation threshold exhibited a higher rheological storage modulus and thermal stability which indicates an alignment between the electrical, thermal and rheological properties.