Morphology and physical properties of binary blend based on PVDF and multi-walled carbon nanotube

Young Wan Nam, Woo Nyon Kim, Yong Han Cho, Dong Wook Chae, Gwang Ho Kim, Seung Pyo Hong, Seung Sang Hwang, Soon Man Hong

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Semicrystalline Poly(vlnylidene fluoride)(PVDF) was melt blended by multiwalled carbon nanotube (MWNT) at various contents (0.01 - 5 wt%) using internal mixer. The relationships between morphology and physical properties based on PVDF and MWNT were investigated. As the MWNT content is increased, the apparent supercooling required for PVDF crystallization and the size of spherulites in PVDF decrease. In the WAXD profiles, the incorporation of MWNT produced a large shoulder at 2θ = 20.7° with increasing the MWNT content, corresponding to the polar β-form crystal of PVDF. The experimental percolation threshold for the electrical conductivity in PVDF was estimated and clearly occured between 2 and 2.5 wt%. Similar tendency was also observed in thermal conductivity and permittivity.

Original languageEnglish
Pages (from-to)478-484
Number of pages7
JournalMacromolecular Symposia
Volume249-250
DOIs
Publication statusPublished - 2007

Keywords

  • Electrical conductivity
  • Multi-walled carbon nanotube
  • Permittivity
  • Poly(vinylidene fluoride)
  • Supercooling

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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    Nam, Y. W., Kim, W. N., Cho, Y. H., Chae, D. W., Kim, G. H., Hong, S. P., Hwang, S. S., & Hong, S. M. (2007). Morphology and physical properties of binary blend based on PVDF and multi-walled carbon nanotube. Macromolecular Symposia, 249-250, 478-484. https://doi.org/10.1002/masy.200750423