Fashion & Textile Research Journal (한국의류산업학회지)

The Society of Fashion and Textile Industry (한국의류산업학회)
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Fabrication of PEDOT:PSS/AgNW-based Electrically Conductive Smart Textiles Using the Screen Printing Method and its Application to Signal Transmission Lines

스크린 프린팅을 이용한 PEDOT:PSS/AgNW 기반 전기전도성 스마트 텍스타일의 제조 및 신호전달선으로의 적용

  • Kang, Heeeun (Dept. of Clothing & Textiles, Yonsei University) ;
  • Lee, Eugene (Dept. of Clothing & Textiles, Yonsei University) ;
  • Cho, Gilsoo (Dept. of Clothing & Textiles, Yonsei University)
  • 강희은 (연세대학교 의류환경학과) ;
  • 이유진 (연세대학교 의류환경학과) ;
  • 조길수 (연세대학교 의류환경학과)
  • Received : 2021.06.09
  • Accepted : 2021.08.13
  • Published : 2021.08.31
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Abstract

In this study, electroconductive textiles were developed by screen-printing technology using a complex solution of PEDOT:PSS/AgNW on a polylactic acid nanofiber web. A performance evaluation was then conducted to utilize this electroconductive textile as a signal transmission line. To obtain highly conductive electroconductive textiles, this study sought to determine the optimal mixing ratio of PEDOT:PSS/AgNW. Sheet resistance was measured to evaluate the electrical properties of electroconductive textiles, Finite element-scanning electron microscopy images were then used to examine surface properties, and Fourier transform-infrared analysis was performed to evaluate chemical properties. The signal waveform characteristics of the electroconductive textile were observed using a signal generator and an oscilloscope. Radio-frequency characteristics were then evaluated to confirm frequency range, and bending tests were conducted to evaluate durability. The signal transmission lines produced in this study had a sheet resistance value of 3.30 ?/sq, and signal transmission performance was evaluated to observe that the input value of the voltage was nearly identical to the output value. In addition, S21 analysis confirmed that it was available in the frequency domain up to 35 MHz. The performances of the transmission lines were maintained after 100, 200, 500, and 1,000 repeated bending tests, and sufficient durability was confirmed.

Keywords

Acknowledgement

본 연구는 2021년도 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행되었음(NRF-2018R1D1A1B07049804).

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