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Electrically conductive textile coating with a PEDOT-PSS dispersion and a polyurethane binder
University of Borås.
RISE, Swerea, Swerea IVF.
RISE, Swerea, Swerea IVF.
2013 (English)In: Textile research journal, ISSN 0040-5175, E-ISSN 1746-7748, Vol. 83, no 6, 618-627 p.Article in journal (Refereed)
Abstract [en]

Electrically conductive textile coatings have been prepared by the addition of a dispersion of poly(3,4-ethylenedioxythiophene)-polystyrene sulfonate (PEDOT-PSS) and ethylene glycol to a polyurethane-based coating formulation. The formulations were designed to have similar viscosities, measured with a rheometer using a cone-and-plate set-up. The formulations were applied to woven poly(ethylene) terephthalate substrates using a direct coating method. The concentration PEDOT-PSS in the finished coatings varied between 0.7 and 6.2 wt%, the coating deposit between 19 and 155 g/m2 and the drying procedure between 4 hours at 20°C and 10 minutes at 150°C. Surface resistivity was measured with a ring probe and surface topology was addressed with scanning electron microscopy (SEM). The PEDOT-PSS concentration had a large effect on the resistivity, which dropped by five orders of magnitude with an increased concentration. The steepest decrease occurred between 1 and 3 wt% PEDOT-PSS, indicating a percolation threshold. An increased coating deposit resulted in a resistivity drop by a factor 10, but no significant effect on the resistivity of the samples could be ascertained by variation of the drying conditions when samples had been subjected to subsequent annealing. © The Author(s) 2013.

Place, publisher, year, edition, pages
2013. Vol. 83, no 6, 618-627 p.
Keyword [en]
Coatings, composites, incorporation, intrinsically conductive polymers, measurement, properties
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-13337DOI: 10.1177/0040517512444330Scopus ID: 2-s2.0-84875286481OAI: oai:DiVA.org:ri-13337DiVA: diva2:973543
Available from: 2016-09-22 Created: 2016-09-22Bibliographically approved

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