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Characterization of conductive polypyrrole coated wool yarns

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Abstract

Wool yarns were coated with conducting polypyrrole by chemical synthesis methods. Polymerization of pyrrole was carried out in the presence of wool yarn at various concentrations of the monomer and dopant anion. The changes in tensile, moisture absorption, and electrical properties of the yarn upon coating with conductive polypyrrole are presented. Coating the wool yarns with conductive polypyrrole resulted in higher tenacity, higher breaking strain, and lower initial modulus. The changes in tensile properties are attributed to the changes in surface morphology due to the coating and reinforcing effect of conductive polypyrrole. The thickness of the coating increased with the concentration of p-toluene sulfonic acid, which in turn caused a reduction in the moisture regain of the wool yarn. Reducing the synthesis temperature and replacing p-toluenesulfonic acid by anthraquinone sulfonic acid resulted in a large reduction in the resistance of the yarn.

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Authors and Affiliations

  1. School of Engineering and Technology, Deakin University, 3217, Geelong, Victoria, Australia

    Akif Kaynak, Lijing Wang, Chris Hurren & Xungai Wang

Authors
  1. Akif Kaynak
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  2. Lijing Wang
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  3. Chris Hurren
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  4. Xungai Wang
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Correspondence to Akif Kaynak.

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Kaynak, A., Wang, L., Hurren, C. et al. Characterization of conductive polypyrrole coated wool yarns. Fibers Polym 3, 24–30 (2002). https://doi.org/10.1007/BF02875365

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  • DOI: https://doi.org/10.1007/BF02875365

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