Preparation and dielectric properties of composites based on PVDF and PVDF-grafted graphene obtained from electrospinning-hot pressing method

Ying Yang, Junjun Chen, Ying Li, Dongliang Shi, Bo Lin, Shijie Zhang, Yiwen Tang, Fuan He, Kwok Ho Lam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)

Abstract

In this work, graphene was modified by the grafting of poly(vinylidene fluoride) (PVDF) using Friedel-Crafts reaction to form PVDF-grafted graphene (PGG) filler, which was confirmed by transmission electron microscope, Fourier transform infrared, Raman spectroscopy, wide angle X-ray diffraction, and thermogravimetric analysis. The solution containing as-prepared PVDF-grafted graphene and PVDF was electrospun to form fibrous membranes, which was subjected to hot pressing in the laminating mode to prepare solid PGG/PVDF composite films. The structures of electrospun fibrous membrane and solid PGG/PVDF composite film were investigated by scanning electron microscope. Furthermore, it could be found that the dielectric constants of PGG/PVDF composites exhibiting relatively low dielectric loss factors were significantly higher than that of pure PVDF.
Original languageEnglish
Pages (from-to)148-153
Number of pages6
JournalJournal of Macromolecular Science, Part A: Pure and Applied Chemistry
Volume55
Issue number2
DOIs
Publication statusPublished - 1 Feb 2018

Keywords

  • composite
  • dielectric properties
  • electrospinning-hot pressing method
  • PVDF
  • PVDF-grafted graphene

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Polymers and Plastics
  • Materials Chemistry

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