Journal of the Korean Society of Clothing and Textiles (한국의류학회지)

The Korean Society of Clothing and Textiles (한국의류학회)
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The Development of Electro-Conductive Threads Coated with Silver Nanowires for Use in Wearable Devices

웨어러블 디바이스를 위한 은 나노와이어 코팅 전도사 개발

  • Kim, Jimin (Dept. of Clothing & Textiles, Ewha Womans University) ;
  • Yun, Changsang (Dept. of Fashion Industry, Ewha Womans University)
  • 김지민 (이화여자대학교 의류학과) ;
  • 윤창상 (이화여자대학교 의류산업학과)
  • Received : 2021.04.26
  • Accepted : 2021.07.22
  • Published : 2021.08.31
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Abstract

Recent advances in electronic technology have engendered a need for research on the use of smart materials in clothing. Electro-conductive fibers are expected to be a crucial element of wearable devices. Therefore, in this study, we have attempted to develop electro-conductive threads and cables using silver nanowires. Based on the characteristics of silver nanowire, in which electro-conductivity can be imparted via heat treatment, we prepared conductive threads by coating nylon yarn with silver nanowires and curing at temperatures of 140℃, 150℃, and 160℃. Conductive threads cured at 140℃ had the highest conductivity, followed by threads cured at 160℃ and 150℃ respectively. The order of the electrical conductivity of the threads after tensile testing was consistent with the original order of the conductivity of the threads. When we evaluated the sensing performance of electro-conductive cables fabricated from these threads, the cables manufactured from threads cured at 140℃ and 160℃ were found to function normally within temperature and humidity sensors. All the cables operated normally in illuminance and electrocardiogram sensors. Thus, we believe that threads made of silver nanowire have sufficient electrical conductivity to be utilized as wearable sensors.

Keywords

References

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