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

    73 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

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