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Investigation into the Dielectric Properties of Polypyrrole Coated Fabrics Composites

Research and development

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Nr DOI: 10.5604/01.3001.0013.2905

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Abstract:

Flexible polypyrrole coated fabric composites with good dielectric properties were produced using pyrrole as a monomer by in-situ polymerisation on polyester fabric. Initially, the influence of the pyrrole concentration, temperature and time on the dielectric constant of the real and imaginary parts, the loss tangent, and the surface resistance of the composites were investigated. Subsequently, exterior morphologies was analysed. The results show that the pyrrole concentration, the reaction temperature and time had a significant influence on the real and imaginary parts of the dielectric constant, the loss tangent, and the surface resistance of the composites. The polypyrrole composites produced show good performance in terms of dielectric properties and electrical conductivity.In the 0-10Hz frequency range, the values of the real and imaginary parts of the dielectric constant of the 0.8mol/L group are both at their largest. Moreover, the value of the surface resistance of the 0.8 mol/L group is at its smallest, and the value of the surface resistance of the 0.2 mol/L group is at its largest, which is 12 times the value given by the 0.8mol/L group.Values of the real and imaginary parts of the dielectric constant, and the loss tangent for the experimental group produced by polymerisation at ambient temperature are at their largest, which is superior to the other groups. The value of the surface resistance for the experimental group produced at ambient temperature is at its smallest and the electrical conductivity is at its strongest; the higher the reaction temperature, the larger the value of the resistance. The various dielectric properties of the 150 min group are better than for the other groups.

Tags:

pyrrole, polypyrrole, dielectric properties, surface resistance, composites.

Citation:

Ge Ch, Liu Y, Qian X, Zhao X. Investigation into the Dielectric Properties of Polypyrrole Coated Fabrics Composites. FIBRES & TEXTILES in Eastern Europe 2019; 27, 5(137): 75-81. DOI: 10.5604/01.3001.0013.2905

Published in issue no 5 (137) / 2019, pages 75–81.

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