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EMI Shielding and Absorption of Electroconductive Textiles with PANI and PPy Conductive Polymers and Numerical Model Approach

Author

Listed:
  • Tomasz Rybicki

    (Institute of Automatic Control, Lodz University of Technology, 90-537 Lodz, Poland)

  • Zbigniew Stempien

    (Faculty of Material Technologies and Textile Design, Lodz University of Technology, 90-924 Lodz, Poland)

  • Iwona Karbownik

    (Institute of Automatic Control, Lodz University of Technology, 90-537 Lodz, Poland)

Abstract

The paper presents the results and analysis of interdisciplinary research concerning electromagnetic field shielding, conductive polymers printed on textiles and numerical simulation using the finite element method (FEM). The use of conductive, layered textiles for shielding electromagnetic interference (EMI) has been proposed. After establishing the optimal conditions for deposition of polyaniline (PANI) and polypyrrole (PPy) on polyacrylonitrile (PAN) fabric, conductive composites were made by means of reactive inkjet printing. For this purpose, polyacrylonitrile (PAN) fabrics were coated with polyaniline or polypyrrole, obtained by chemical oxidation of aniline hydrochloride and pyrrole by ammonium peroxydisulfate. The morphology of the obtained coatings was observed using a scanning electron microscope (SEM). The conductive properties (surface resistance) of the fabrics were measured using the four-wire method, and the tests of the effectiveness of electromagnetic shielding were carried out using the waveguide method in the frequency range from 2.5 to 18 GHz. The results of experimental shielding effectiveness (SE) tests and numerical simulation showed that the composites of polyacrylonitrile with polyaniline PAN/PANI and polyacrylonitrile with polypyrrole PAN/PPy achieved very good and good EMI shielding efficiency, respectively. Moreover, the obtained measurement results were verified by numerical modeling with the use of FEM–ANSYS HFFS software.

Suggested Citation

  • Tomasz Rybicki & Zbigniew Stempien & Iwona Karbownik, 2021. "EMI Shielding and Absorption of Electroconductive Textiles with PANI and PPy Conductive Polymers and Numerical Model Approach," Energies, MDPI, vol. 14(22), pages 1-19, November.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:22:p:7746-:d:682096
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    Cited by:

    1. Thanaset Thosdeekoraphat & Supawat Kotchapradit & Watcharapong Bunpradit & Worawut Boonpeang & Chanchai Thongsopa & Samran Santalunai, 2024. "Improving the Power Efficiency of a Microwave Plasma Source by Using the Principle of a Variable-Impedance Waveguide," Energies, MDPI, vol. 17(12), pages 1-21, June.

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