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 language | English |
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Pages (from-to) | 577-583 |
Number of pages | 7 |
Journal | Polymers for Advanced Technologies |
Volume | 13 |
Issue number | 8 |
DOIs | |
Publication status | Published - 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