한국의류산업학회지 (Fashion & Textile Research Journal)

  • 제22권3호
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  • Pages.386-398
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  • 2020
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  • 1229-2060(pISSN)
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  • 2287-5743(eISSN)
한국의류산업학회 (The Society of Fashion and Textile Industry)
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Polypyrrole을 증착시킨 Poly(vinyl alcohol) 나노섬유 제조 및 전극용 텍스타일 센서로의 활용 가능성 탐색 -딥 코팅과 현장중합 증착 방식을 중심으로-

Fabrication of Polypyrrole Deposited Poly (vinyl alcohol) Nanofiber Webs by Dip-coating and In situ Polymerization and their Application to Textile Electrode Sensors

  • 양혁주 (연세대학교 의류환경학과) ;
  • 김재현 (연세대학교 의류환경학과) ;
  • 이승신 (연세대학교 의류환경학과) ;
  • 조길수 (연세대학교 의류환경학과)
  • Yang, Hyukjoo (Dept. of Clothing & Textiles, Yonsei University) ;
  • Kim, Jaehyun (Dept. of Clothing & Textiles, Yonsei University) ;
  • Lee, Seungsin (Dept. of Clothing & Textiles, Yonsei University) ;
  • Cho, Gilsoo (Dept. of Clothing & Textiles, Yonsei University)
  • 투고 : 2019.12.13
  • 심사 : 2020.04.17
  • 발행 : 2020.06.30
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초록

This study compared dip-coating and in situ polymerization methods for the development of nanofiber-based E-textile using polypyrrole. Nanofiber webs were fabricated by electrospinning an aqueous poly (vinyl alcohol) (PVA) solution. Subsequently, the PVA nanofiber web underwent thermal treatment to improve water resistance. Dip-coating and in situ polymerization methods were used to deposit polypyrrole on the surfaces of the nanofiber web. An FE-SEM analysis was also conducted to examine specimen surface characteristics along with EDS and FT-IR that analyzed the chemical bonding between polypyrrole and specimens. The line resistance and sheet resistance of the treated specimens were measured. Finally, an electrocardiogram (ECG) was measured with textile sensors made of the polypyrrole-deposited PVA nanofiber webs. The polypyrrole-deposited PVA nanofiber webs fabricated by dip-coating dissolved in the dip-coating solution and indicated damage to the nanofibers. However, in the case of in situ polymerization, polypyrrole nanoparticles were deposited on the surface and inter-web structure of the PVA nanofiber web. The resistance measurements indicated that polypyrrole-deposited PVA nanofiber webs fabricated by in situ polymerization with an average sheet resistance of 5.3 k(Ω/□). Polypyrrole-deposited PVA nanofiber webs fabricated by dip-coating showed an average sheet resistance of 57.3 k(Ω/□). Polypyrrole-deposited PVA nanofibers fabricated by in situ polymerization showed a lower line and sheet resistance; in addition, they detected the electrical activity of the heart during ECG measurements. The electrodes made from polypyrrole-deposited PVA nanofiber webs by in situ polymerization showed the best performance for sensing ECG signals among the evaluated specimens.

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