Conducting polymer coated fabrics for potential applications in microwave frequencies : a study of electromagnetic properties
Håkansson, Eva and Kaynak, Akif 2007, Conducting polymer coated fabrics for potential applications in microwave frequencies : a study of electromagnetic properties, in 3rd International Technical Textiles Congress, Meta Basim Press, Turkey, pp. 156-164.
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The microwave reflection, transmission and complex permittivity of paratoluene-2-sulfonic acid doped conducting polypyrrole (PPy/pTSA) coated Nylon-Lycra textiles in the 1-18 GHz frequency were investigated. The real part of permittivity increased with polymerization time and dopant concentration, reaching a plateau at certain dopant concentration and polymerization time. The imaginary part of permittivity showed a frequency dependent change throughout the tested range. All the samples had higher values of absorption than reflection. The total electromagnetic shielding effectiveness exceeded 80% for the highly pTSA doped samples coated for 3 hours.
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