Dielectric behaviour of polyamide monofilament fibers containing moisture as measured in woven form |
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| Authors: | Kausik Bal V K Kothari |
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| Institution: | 2. Department of Textile Evaluation, Faculty of Textiles, Technical University of Liberec, Liberec, Czech Republic
1. Department of Textile Technology, Indian Institute of Technology, Hauz Khas, Delhi, India
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| Abstract: | This paper discusses measurement and modeling of dielectric properties of polymeric materials in a three phase mixture consisting air, moisture and the polymer itself. Using nylon 6 monofilaments as base polymeric materials and assembled in simple woven fabric form, it is shown that the effective permittivity follows a quadratic curve with respect to the volume fraction. The effect of moisture absorption by the fibers on the effective volume fraction is calculated theoretically and results show negligible difference between two extreme cases of moisture adsorption. A new method of analyzing the system as a three phase system is described in this paper. |
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