Electromagnetic interference shielding by using conductive polypyrrole and metal compound coated on fabrics

C. Y. Lee, D. E. Lee, C. K. Jeong, Y. K. Hong, J. H. Shim, J. Joo, M. S. Kim, J. Y. Lee, S. H. Jeong, S. W. Byun, D. S. Zang, H. G. Yang

Research output: Contribution to journalArticlepeer-review

72 Citations (Scopus)

Abstract

Electromagnetic interference (EMI) shielding materials of complex type of conductive polypyrrole (PPy) as an intrinsically conducting polymer and silver-palladium (AgPd) metal compound coated on woven or non-woven fabrics are synthesized. From dc conductivity and SEM photographs of PPy/fabric complexes, we discuss charge transport mechanism and the homogeneity of coating on the fabrics. The EMI shielding efficiency of PPy/fabric and AgPd/fabric complexes is in the range of 8 ∼ 80 dB depending on the conductivity and the additional Ag vacuum evaporation. The highest EMI shielding efficiency of PPy/fabric complexes vacuum-evaporated by Ag is ∼80 dB, indicating potential materials for military uses. We propose that PPy/fabrics are excellent RF and microwave absorber because of the relatively high absorbance and low reflectance of the materials.

Original languageEnglish
Pages (from-to)577-583
Number of pages7
JournalPolymers for Advanced Technologies
Volume13
Issue number8
DOIs
Publication statusPublished - 2002 Aug

Bibliographical note

Funding Information:
of Higher Education of China under Grant No. 20070610032; and the Cultivation Fund of the Key Scientific and Technical Innovation Project, Ministry of Education of China under Grant No. 708075.

Funding Information:
This work was supported by the National Natural Science Foundation of China under Grant No. 60873246; the National Research Foundation for Doctoral Program

Keywords

  • Chemical polymerization
  • Electrochemical polymerization
  • Electromagnetic interference shielding efficiency
  • Fabrics
  • Metal compound
  • Polypyrrole

ASJC Scopus subject areas

  • Polymers and Plastics

Fingerprint

Dive into the research topics of 'Electromagnetic interference shielding by using conductive polypyrrole and metal compound coated on fabrics'. Together they form a unique fingerprint.

Cite this