Investigation of the electric conductivity and the electromagnetic interference shielding efficiency of SWCNTs/GNS/PAni nanocomposites

Yin Ju Chen, Nguyen Duc Dung, Yu An Li, Ming Chuen Yip, Wen Kuang Hsu, Nyan Hwa Tai*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

54 Scopus citations

Abstract

This work demonstrates the fabrications and characterizations of polyaniline (PAni) composites containing single-walled carbon nanotubes (SWCNTs), graphite nanosheets (GNS), or hybrid fillers (SWCNTs/GNS). The characterization of microstructure, examination of fracture surface morphologies, and measurement of electric conductivity and electromagnetic interference shielding efficiency (EMI SE) were performed. It was found that both the electric conductivity and the EMI SE increase with filler loading, and the nanocomposites filled with 1.0 wt.% SWCNTs/GNS possessed the highest electric conductivity of 16.2 S/cm and total EMI SE of 27.0 dB. The experimental results also show that absorption is the primary mechanism of EMI SE for all of the loadings and fillers.

Original languageEnglish
Pages (from-to)1183-1187
Number of pages5
JournalDiamond and Related Materials
Volume20
Issue number8
DOIs
StatePublished - 08 2011
Externally publishedYes

Keywords

  • Electric conductivity
  • EMI SE
  • GNS
  • PAni
  • SWCNTs

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