Shielding behaviour of conducting polymer-coated fabrics in X-band,W-band and radio frequency range |
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| Affiliation: | 1. Polymeric and Soft Materials Division, National Physical Laboratory, New Delhi 110012, India;2. Vikram Sarabhai Space Center, Thiruvananthapuram, Kerala, 695022, India;1. School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China;2. Key Laboratory of Advanced Civil Engineering Materials, Tongji University, Education of Ministry, Shanghai, 201804, PR China;1. Ibnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia;2. Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia;3. Department of Physics, Institut Sains dan Teknologi Nasional, Jl. Moh. Kahfi II, Jagakarsa, Jakarta Selatan 12640, Indonesia;1. Physics Department, Guizhou University, Guiyang 550025, People’s Republic of China;2. Nanjing National Laboratory of Microstructures and Jiangsu Provincial Laboratory for NanoTechnology, Nanjing University, Nanjing 210093, People’s Republic of China;1. College of Textile, Donghua University, Shanghai 201620, China;2. Institute of Quartermaster Engineering & Technology, Institute of System Engineering, Academy of Military Science, Beijing 100010, China;3. School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, China |
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| Abstract: | Electromagnetic interference response of conducting polyaniline-coated fabrics in the microwave range, W-band, RFI range as well as in UV–Vis–NIR range has been studied. In the radio frequency range from 100 to 1000 MHz, conducting polyaniline-coated fabrics shows a shielding effectiveness in the range 30–40 dB. Shielding effectiveness of the conducting fabrics in W-band region at 101 GHz shows an attenuation of 35.61 dB. The microwave reflectance studies of the coated fabrics in 8–12 GHz range shows that conducting fabrics gives shielding effectiveness value of −3 to −11 dB. The reflectance studies of conducting polyaniline-coated fabric shows that 98% of the energy is absorbed in the UV–Vis–NIR range and 2% is reflected back. In polypyrrole-coated fabric 96% of energy is absorbed and 4% is reflected back, whereas in substituted polythiophene-coated fabric, 82% of the energy is absorbed and 18% is reflected back. |
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