Subhankar Maity and Arobindo Chatterjee
This work describes a novel method for preparing electro-conductive cotton yarn by in situ chemical polymerization of pyrrole with FeCl3 oxidant and pTSA dopant. The mean resistivity 16 Ne yarn is obtained about 182.63 KΩ/m-1 with 11.6% polypyrrole add-on. It is observed that electrical resistivity of the yarn increased linearly with increase of its length. Significant change of electrical resistivity is observed when twist and tensile strain are imparted in the yarn structure. Microscopic image analysis evidences that there is uniform distribution of polypyrrole polymer on the surface of cotton fibres. This electro-conductive yarn is found suitable for thermo-electric See beck effect.
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