Crystal structure and ferroelectric properties of poly(vinylidene fluoride)-carbon nano tube nanocomposite film

Ji Seok Lee, Gwang Ho Kim, Woo Nyon Kim, Kyung Hwan Oh, Hyeong Tae Kim, Seung Sang Hwang, Soon Man Hong

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We investigated the effect of carbon nanotube on the crystal structure and mechanical/ferroelectric/piezoelectric properties based on poly(vinylidene fluoride) (PVDF) and carbon nano tube (CNT) composite film. The composite films were prepared by solution blending method, and the films were formed by hot-pressing. The contents of CNT were from 0.001wt.% to 1wt.%. For inducing piezoelectric beta-crystal structure, the hot-pressed nano composite films were drawn by 400% elongation. These samples were poled at high voltage and high temperature for polarization of the PVDF/CNT composite film. The beta-crystalline phase were increased with CNT contents, passing through the peak, and decreased. The structural changes depend on the CNT contents, drawing and poling conditions.

Original languageEnglish
Pages (from-to)247-254
Number of pages8
JournalMolecular Crystals and Liquid Crystals
Volume491
DOIs
Publication statusPublished - 2008 Nov 3

Fingerprint

Nanocomposite films
vinylidene
Ferroelectric materials
fluorides
nanocomposites
Carbon
Crystal structure
tubes
Composite films
crystal structure
carbon
composite materials
Carbon Nanotubes
hot pressing
Hot pressing
elongation
Elongation
high voltages
Carbon nanotubes
carbon nanotubes

Keywords

  • Carbon nano tube
  • Ferroelectric properties
  • Nano-composite
  • Poly(vinylidene fluoride)

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Science(all)

Cite this

Crystal structure and ferroelectric properties of poly(vinylidene fluoride)-carbon nano tube nanocomposite film. / Lee, Ji Seok; Kim, Gwang Ho; Kim, Woo Nyon; Oh, Kyung Hwan; Kim, Hyeong Tae; Hwang, Seung Sang; Hong, Soon Man.

In: Molecular Crystals and Liquid Crystals, Vol. 491, 03.11.2008, p. 247-254.

Research output: Contribution to journalArticle

Lee, Ji Seok ; Kim, Gwang Ho ; Kim, Woo Nyon ; Oh, Kyung Hwan ; Kim, Hyeong Tae ; Hwang, Seung Sang ; Hong, Soon Man. / Crystal structure and ferroelectric properties of poly(vinylidene fluoride)-carbon nano tube nanocomposite film. In: Molecular Crystals and Liquid Crystals. 2008 ; Vol. 491. pp. 247-254.
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