DOI QR코드

DOI QR Code

나피온/전도성 나노입자 전기방사 웹을 이용한 고성능 이온성 고분자-금속 복합체 구동기의 제조

High-Performance Ionic Polymer-Metal Composite Actuators Based on Nafion/Conducting Nanoparticulate Electrospun Webs

  • 정요한 (건국대학교 공과대학 신소재공학과) ;
  • 이장우 (한국과학기술연구원 나노하이브리드연구센터) ;
  • 유영태 (건국대학교 공과대학 신소재공학과)
  • Jung, Yo-Han (Department of Materials Chemistry and Engineering, Konkuk University) ;
  • Lee, Jang-Woo (Nano Hybrids Center, Korea Institute of Science and Technology) ;
  • Yoo, Young-Tai (Department of Materials Chemistry and Engineering, Konkuk University)
  • 투고 : 2011.12.07
  • 심사 : 2012.02.08
  • 발행 : 2012.07.25

초록

이온성 고분자-금속 복합체(ionic polymer-metal composite, IPMC) 구동기의 구동성능 향상을 위해 전기방사를 통해 제조된 나피온/전도성 나노입자 웹을 나피온 필름의 양면에 접합시켜 전해질막을 개질하였다. 전도성 나노입자는 다층탄소나노튜브(multiwalled carbon nanotube, MWNT)와 은 나노입자가 사용되었으며, 이를 각각 나피온 용액에 분산시켜 전기방사하였다. 개질된 IPMC는 향상된 구동변위, 응답속도 및 구동력을 나타내었으며 은 나노입자에 비해 MWNT가 더욱 뛰어난 구동변위와 구동력을 유도하였고, 전도성 나노입자가 포함되지 않은 전기방사 웹을 적용한 경우에도 성능향상이 관찰되었다. 제조된 IPMC의 우수한 구동성능은 전기방사 웹의 다공성에 의한 전해액 이동의 용이성, 고분산된 전도성 나노입자에 의해 유도된 높은 전기용량 및 낮은 전극 저항 때문인 것으로 분석되었다.

To improve the performance of ionic polymer-metal composite (IPMC) actuators, Nafion films sandwiched with Nafion/conducting nanoparticulate electrospun webs were used as polymer electrolytes of IPMC. Multiwalled carbon nanotube (MWNT) and silver were the conducting nanoparticulates and the nanoparticles dispersed in a Nafion solution were electrospun. IPMCs with the Nafion/conducting nanoparticulate electrospun webs displayed improved displacements, response rates, and blocking forces. MWNT was superior to silver in terms of displacement and blocking force, and the webs without the conducting fillers also caused enhanced performances compared with the conventional IPMCs. These improvements were attributed to an elevated electrolyte flux through highly porous interlayers and capacitance induced by well dispersed conducting fillers, and low interfacial resistance between electrolyte and electrodes.

키워드

과제정보

연구 과제 주관 기관 : 건국대학교

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