Machine-Washable Conductive Silk Yarns with a Composite Coating of Ag Nanowires and PEDOT:PSS
Artikel i vetenskaplig tidskrift, 2020

Electrically conducting fibers and yarns are critical components of future wearable electronic textile (e-textile) devices such as sensors, antennae, information processors, and energy harvesters. To achieve reliable wearable devices, the development of robust yarns with a high conductivity and excellent washability is urgently needed. In the present study, highly conductive and machine-washable silk yarns were developed utilizing a Ag nanowire and PEDOT:PSS composite coating. Ag nanowires were coated on the silk yarn via a dip-coating process followed by coating with the conjugated polymer:polyelectrolyte complex PEDOT:PSS. The PEDOT:PSS covered the Ag nanowire layers while electrostatically binding to the silk, which significantly improved the robustness of the yarn as compared with the Ag nanowire-coated reference yarns. The fabricated conductive silk yarns had an excellent bulk conductivity of up to ∼320 S/cm, which is largely retained even after several cycles of machine washing. To demonstrate that these yarns can be incorporated into e-textiles, the conductive yarns were used to construct an all-textile out-of-plane thermoelectric device and a Joule heating element in a woven heating fabric.



Ag nanowire

washing machine proof

conductive silk yarn


Byungil Hwang

Chung-Ang University

Anja Lund

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Yuan Tian

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Sozan Darabi

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Christian Müller

Chalmers, Kemi och kemiteknik, Tillämpad kemi

ACS Applied Materials & Interfaces

1944-8244 (ISSN) 1944-8252 (eISSN)

Vol. 12 24 27537-27544


Bearbetnings-, yt- och fogningsteknik

Textil-, gummi- och polymermaterial

Kompositmaterial och -teknik





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