Strain-responsive polyurethane/PEDOT:PSS elastomeric composite fibers with high electrical conductivity

Seyedin, Mohammad Ziabari, Razal, Joselito M., Innis, Peter C. and Wallace, Gordon G. 2014, Strain-responsive polyurethane/PEDOT:PSS elastomeric composite fibers with high electrical conductivity, Advanced functional materials, vol. 24, no. 20, pp. 2957-2966.

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Title Strain-responsive polyurethane/PEDOT:PSS elastomeric composite fibers with high electrical conductivity
Author(s) Seyedin, Mohammad ZiabariORCID iD for Seyedin, Mohammad Ziabari
Razal, Joselito M.ORCID iD for Razal, Joselito M.
Innis, Peter C.
Wallace, Gordon G.
Journal name Advanced functional materials
Volume number 24
Issue number 20
Start page 2957
End page 2966
Total pages 10
Publisher Wiley
Place of publication London, Eng.
Publication date 2014-05
ISSN 1616-301X
Keyword(s) conducting fibers
elastomeric fibers
strain sensors
Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry, Physical
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Physics, Applied
Physics, Condensed Matter
Science & Technology - Other Topics
Materials Science
Summary It is a challenge to retain the high stretchability of an elastomer when used in polymer composites. Likewise, the high conductivity of organic conductors is typically compromised when used as filler in composite systems. Here, it is possible to achieve elastomeric fiber composites with high electrical conductivity at relatively low loading of the conductor and, more importantly, to attain mechanical properties that are useful in strain-sensing applications. The preparation of homogenous composite formulations from polyurethane (PU) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) that are also processable by fiber wet-spinning techniques are systematically evaluated. With increasing PEDOT:PSS loading in the fiber composites, the Young's modulus increases exponentially and the yield stress increases linearly. A model describing the effects of the reversible and irreversible deformations as a result of the re-arrangement of PEDOT:PSS filler networks within PU and how this relates to the electromechanical properties of the fibers during the tensile and cyclic stretching is presented. Conducting elastomeric fibers based on a composite of polyurethane (PU) and PEDOT:PSS, produced by a wet-spinning method, have high electrical conductivity and stretchability. These fibers can sense large strains by changes in resistance. The PU/PEDOT:PSS fiber is optimized to achieve the best strain sensing. PU/PEDOT:PSS fibers can be produced on a large scale and integrated into conventional textiles by weaving or knitting. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Language eng
Field of Research 091205 Functional Materials
Socio Economic Objective 860406 Synthetic Fibres
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Wiley-Blackwell
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Document type: Journal Article
Collections: Institute for Frontier Materials
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