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

30 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

Keywords

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

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Crystal structure and ferroelectric properties of poly(vinylidene fluoride)-carbon nano tube nanocomposite film'. Together they form a unique fingerprint.

  • Cite this