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Highly Stretchable and Durable Electrospinning Polyurethane Nanofiber Composite Yarn for Electronic Devices

Highly Stretchable and Durable Electrospinning Polyurethane Nanofiber Composite Yarn for... High-conductivity yarns with remarkable flexibility and sensitivity have great potential for application in manufacturing wearable electronics. However, the development of electronic textiles (E-textiles) is still limited by the insufficient extents of size manipulation and weight reduction. In this study, a novel nanofiber yarn with a high flexibility, durability, and sensitivity was prepared by a facile electrospinning technique. The composite yarn with silver nanowires used as a reinforcement for polyurethane nanofibers exhibits a high elongation at break (500 %), conductivity (0.4 kΩ/cm), and durability (recovery after 200 tensile cycles). Furthermore, the yarn was used to monitor body language. The results showed distinct fluctuations in resistance in response to subtle changes in expression and small movements of the body. In addition, the composite yarn was examined as a potential electric heater material. The yarn’s surface temperature rised to 62.6 °C in 5 s, which proved its excellent electrothermal properties, and it could be realized even at 1 V. The combination of highly conductive structural components, i.e., silver nanowires and the flexible polyurethane nanofibers is a promising design strategy for producing new multifunctional composites for wearable devices. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Fibers and Polymers Springer Journals

Highly Stretchable and Durable Electrospinning Polyurethane Nanofiber Composite Yarn for Electronic Devices

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References (31)

Publisher
Springer Journals
Copyright
Copyright © The Korean Fiber Society for Fibers and Polymers and Springer 2021
ISSN
1229-9197
eISSN
1875-0052
DOI
10.1007/s12221-021-2351-5
Publisher site
See Article on Publisher Site

Abstract

High-conductivity yarns with remarkable flexibility and sensitivity have great potential for application in manufacturing wearable electronics. However, the development of electronic textiles (E-textiles) is still limited by the insufficient extents of size manipulation and weight reduction. In this study, a novel nanofiber yarn with a high flexibility, durability, and sensitivity was prepared by a facile electrospinning technique. The composite yarn with silver nanowires used as a reinforcement for polyurethane nanofibers exhibits a high elongation at break (500 %), conductivity (0.4 kΩ/cm), and durability (recovery after 200 tensile cycles). Furthermore, the yarn was used to monitor body language. The results showed distinct fluctuations in resistance in response to subtle changes in expression and small movements of the body. In addition, the composite yarn was examined as a potential electric heater material. The yarn’s surface temperature rised to 62.6 °C in 5 s, which proved its excellent electrothermal properties, and it could be realized even at 1 V. The combination of highly conductive structural components, i.e., silver nanowires and the flexible polyurethane nanofibers is a promising design strategy for producing new multifunctional composites for wearable devices.

Journal

Fibers and Polymers – Springer Journals

Published: Feb 1, 2022

Keywords: Nanofiber yarn; Silver nanowire; Polyurethane; Electrospinning; Electronic device

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