심전도용 전극으로의 적용을 위한 폴리피롤 코팅 PVA 나노웹 전기전도성텍스타일의 제조 = Production of Polypyrrole Coated PVA Nanoweb Electroconductive Textilesfor Application to ECG Electrode

다국어 초록 (Multilingual Abstract)

This study developed electroconductive textiles by coating polypyrrole to PET nonwoven-based Polyvinyl Alcohol (PVA) nanoweb made by electrospinning and applying the developed electrotextiles as ECG Electrodes. To find the optimum coating conditions for high electrical conductivity, the ratios of 2.6-Naphthalenedisulfonic acid with Disodium Salt (NDS) vs Ammonium Persulfate (APS) as an oxidant and a doping agent in the solution were changed from 3:7 to 7:3; the immersion time of the specimen in the solution was 1 hour. PVA nanowebs coated with polypyrrole under various conditions were filmed with FE-SEM. FT-IR analysis was also performed to examine the presence of polypyrrole nanoparticles in the PVA nanoweb. The electrical resistance of the treated specimens were measured with a Multimeter. Consequently, the PVA Nano Web was undamaged even after heat treatment that allowed for coating. Uniform polypyrrole nanoparticles then formed on the surface of the PVA nanoweb after coating. The measured electrical resistance was shown to be at least 12KΩ/□ from a maximum of 3,456KΩ/□. The proper amount of NDS content had a positive effect on the conductivity improvement of electroconductive textiles; in addition, the highest electrical conductivity was achieved with a ratio of 3:7 between NDS and APS.

참고문헌 (Reference)

1 이정수, "패치형 웨어러블 심전도 측정 시스템을 위한 접착성 폴리우레탄 기반의 용량성 전극" 대한의용생체공학회 35 (35): 203-210, 2014

2 나효열, "전기 전도성 폴리스티렌/은 나노와이어 나노복합재료의 제조 및 물성" 한국고분자학회 39 (39): 655-661, 2015

3 조길수, "바이오 모니터링 스마트 의류와 E-textile 개발 현황" 한국의류산업학회 10 (10): 1-10, 2008

4 홍주현, "u-Healthcare를 위한 PDA 기반의 무선 심전도 모니터링 시스템" 대한의료정보학회 12 (12): 153-160, 2006

5 John, R., "The use of microelectrodes to probe the electropolymerization mechanism of heterocyclic conducting polymers" 306 (306): 157-167, 1991

6 Hong, K. H., "Prepara-tion of antimicrobial poly(vinyl alcohol)nanofibers containing silver nanoparticles" 44 (44): 2468-2474, 2006

7 Kim, I. H., "Polyurethane nanoweb strain sensors via in situ polymerization of polypyrrole and their application to monitoring joint flexion" Yonsei University 2017

8 Whang, Y. E., "Polypyrroles prepared by chemical oxidative polymerization at different oxidation potentials" 45 (45): 151-161, 1991

9 Miraftab, M., "Physical stabilisation of electrospun poly(vinyl alcohol)nanofibres : Comparative study on methanol and heat-based crosslinking" 50 (50): 1943-1957, 2015

10 장은지, "PU 나노웹 기반 전기전도성 텍스타일의 개발 및 스마트의류용 신호전달선으로의 적용 가능성 탐색" 한국의류산업학회 20 (20): 101-107, 2018

11 Oh, T. I., "Nanofiber web textile dry electrodes for long-term biopotential recording" 7 (7): 204-211, 2013

12 Singh, R. K., "Influence of binary oxidant(FeCl3 : APS)ratio on the spectroscopic and microscopic properties of poly(2, 5-dimethoxyaniline)" 2 (2): 105-, 2012

13 Park, K. R., "Improvement of heat resistance of poly(vinyl alcohol)hydrogels by radiation crosslinking and heating" 7 (7): 459-462, 2003

14 Ribo, J. M., "High field conductivity in polypyrrole" 97 (97): 229-238, 1998

15 Lee, K., "Electrospun zinc oxide/poly(vinyl alcohol)nanofibrous membranes : in vitro and wear trial evaluation of antimicrobial activity" 85 (85): 1999-2008, 2015

16 Park, S. K., "Electronic and smart textiles" 24 (24): 38-44, 2013

17 Park, H. W., "Department of R&D managerment" 11 : 11-19, 2014

18 Zhang, Y., "Carbon nanotube–zinc oxide electrode and gel polymer electrolyte for electrochemical supercapacitors" 480 (480): 17-19, 2009