Article
  • High Performance Ionic Polymer-Metal Composite Actuators Based on Nanopatterned Nafion by Thermal Imprinting Lithography
  • Dong-Heon Han# , Jaewon Choi#,*, Seung-Ju Oh, Jae-Uk Yoon, In-Sun Woo, Jinah Kim, and Jin Woo Bae

  • Multifunctional Organic Polymer Laboratory, Future Convergence Engineering, School of Energy,
    Materials and Chemical Engineering, Korea University of Technology and Education, Cheonan 31253, Korea
    *Department of Carbon Convergence Engineering, Jeonju University, Jeonju 55069, Korea

  • 열압착으로 나노구조가 도입된 나피온을 이용한 고성능 이온성 고분자-금속 복합체 구동기
  • 한동헌# · 최재원#,* · 오승주 · 윤재욱 · 우인선 · 김진아 · 배진우

  • 한국기술교육대학교 에너지신소재화학공학부 미래융합공학전공
    *전주대학교 탄소융합공학과

  • Reproduction, stored in a retrieval system, or transmitted in any form of any part of this publication is permitted only by written permission from the Polymer Society of Korea.

Abstract

Ionic polymer-metal composite (IPMC) has attracted attention as one of actuators due to their light weight, fast response rate, and large deformation at low voltage. Especially, the operating properties of IPMC can be improved by increasing interfacial area between an ion exchange membrane and electrodes. In this study, IPMC was fabricated using nanorod-imprinted Nafion ion exchange membrane through thermal imprint lithography (TIL). It was confirmed that the length of nanorods onto the membrane gradually increased with increasing the time of thermal imprinting. Then, the IPMCs were fabricated by electroless plating method where the Pt electrode was coated onto the nanorod-imprinted membrane. As a result, nanorod-imprinted IPMCs showed outstanding displacement, response rate, and driving force rather than IPMC with untreated ion exchange membrane. It is because the nanorod-imprinted IPMCs have outstanding electroactive charging characteristics with the electrolyte at the interface.


액추에이터로써 이온성 고분자-금속 복합물(ionic polymer metal composite, IPMC)은 가벼운 무게, 빠른 응답속도 그리고 낮은 전압에서의 큰 기계적 변형특성으로 인해서 최근 많은 연구가 이루어지고 있다. 특히 이온교환막과 전극 사이의 계면 면적을 증가시킴으로써 IPMC의 구동 특성을 개선시킬 수 있다. 본 연구에서는 열압착 나노임프린트 리소그래피(thermal imprint lithography, TIL)법으로 Nafion 이온교환막 표면에 나노기둥을 도입하였고, 이를 IPMC에 적용하였다. TIL법의 시간이 증가함에 따라서 나노기둥의 길이가 증가하는 것을 확인하였고, 이를 무전해 도금법으로 백금 전극을 이온교환막 표면에 형성하여 IPMC를 제작하였다. 결과적으로 나노기둥이 도입된 IPMC는 구동변위와 구동속도 및 구동력이 모두 증가하였다. 이러한 특성은 이온교환막과 전극 사이의 넓어진 계면에서 전기활성 대전 특성이 우수하기 때문이었다.


Keywords: ionic polymer-metal composite, thermal imprint lithography, nanorod-imprinted membrane.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2022; 46(4): 491-496

    Published online Jul 25, 2022

  • 10.7317/pk.2022.46.4.491
  • Received on Mar 28, 2022
  • Revised on May 15, 2022
  • Accepted on May 18, 2022

Correspondence to

  • Jin Woo Bae
  • Multifunctional Organic Polymer Laboratory, Future Convergence Engineering, School of Energy,
    Materials and Chemical Engineering, Korea University of Technology and Education, Cheonan 31253, Korea

  • E-mail: jwbae@koraetech.ac.kr