Issue 10, 2017

Highly conductive PEDOT:PSS treated by sodium dodecyl sulfate for stretchable fabric heaters

Abstract

In this study, the conductivity of poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) was greatly enhanced by using sodium dodecyl sulfate (SDS) without damaging the fabric substrates. We suggest that blending and dipping methods using SDS which is compatible with natural and synthetic fabrics dramatically increase the conductivity of PEDOT:PSS to as high as 1335 S cm−1. Additionally, a highly stretchable fabric heater with high conductivity was successfully fabricated using SDS-modified PEDOT:PSS. The fabric heaters exhibited reversible electrical behaviour with cyclic loading of a tensile strain even larger than 80%. The increase in resistance with the tensile strain was significantly smaller than the calculated value for a rigid substrate because the fabrics with a weave structure exhibited interfibrillar contact effects with strain. For example, the resistance was increased by a factor of only 2.62 with 80% strain. The Joule heating behaviours of the fabric heaters were demonstrated at several different applied voltages and ambient temperatures, and the heat capacity and convective heat transfer coefficient were 2 J K−1 and 30 W m−2 K−1, respectively. The results demonstrated that the method suggested in this work is not only efficient for greatly improving the conductivity but also simple and cost-effective for fabricating highly conductive and stretchable fabrics with various e-textile applications.

Graphical abstract: Highly conductive PEDOT:PSS treated by sodium dodecyl sulfate for stretchable fabric heaters

Supplementary files

Article information

Article type
Paper
Submitted
05 okt 2016
Accepted
20 okt 2016
First published
20 okt 2016
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 5888-5897

Highly conductive PEDOT:PSS treated by sodium dodecyl sulfate for stretchable fabric heaters

C. Yeon, G. Kim, J. W. Lim and S. J. Yun, RSC Adv., 2017, 7, 5888 DOI: 10.1039/C6RA24749K

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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