Fashion & Textile Research Journal (한국의류산업학회지)

The Society of Fashion and Textile Industry (한국의류산업학회)
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Fabrication of Electroconductive Textiles Based PLA Nanofiber Web Coated with PEDOT:PSS

PEDOT:PSS로 코팅된 PLA 나노섬유 웹의 전기전도성 텍스타일 제조

  • Shin, Sungeun (Dept. of Clothing & Textiles, Yonsei University) ;
  • Cha, Sujin (Dept. of Clothing & Textiles, Yonsei University) ;
  • Cho, Gilsoo (Dept. of Clothing & Textiles, Yonsei University)
  • 신성은 (연세대학교 의류환경학과) ;
  • 차수진 (연세대학교 의류환경학과) ;
  • 조길수 (연세대학교 의류환경학과)
  • Received : 2019.12.10
  • Accepted : 2020.02.07
  • Published : 2020.04.30
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Abstract

We proposed a simple process of fabricating electroconductive textiles by coating conductive polymer PEDOT:PSS (Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)) on biocompatible PLA (Poly Lactic Acid) nanofiber web for application to smart healthcare. Electroconductive textiles were obtained by a drop-coating process using different amounts of PEDOT:PSS solutions., DMSO (dimethyl sulfoxide) was then used as an additive in the post-treatment process to improve conductivity. The surface morphology of the specimens was observed by FE-SEM. The chemical structures of the specimens were characterized using FTIR. The electrical properties (linear and sheet resistance) of the specimens were measured. The effect of the bending angles on the electrical properties was also investigated to confirm their applicability as wearable smart textiles. FE-SEM and FTIR analysis confirmed that the deposition of PEDOT:PSS on the PLA nanofiber web surface was successful. The conductivity of the PEDOT:PSS/PLA nanofiber web was enhanced up to 1.5 ml with an increasing amount of PEDOT:PSS solutions, but there was no significant difference at 2.0 ml. The optimum condition of PEDOT:PSS deposition was established to 1.5 ml. Even when the specimen coated with 1.5 ml was bent every 30°, the change in the electrical resistance values was still low within 3.7 Ω. It confirmed that stable electrical performance was maintained and proved the applicability as a flexible textile sensor.

Keywords

References

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