공업화학전망 (Prospectives of Industrial Chemistry)

한국공업화학회 (The Korean Society of Industrial and Engineering Chemistry)
권호 표지

액정 엘라스토머 기반 소프트 액추에이터

Liquid Crystal Elastomer-Based Soft Actuators

  • 배재희 (부산대학교 응용화학공학부) ;
  • 김금비 (부산대학교 응용화학공학부) ;
  • 최수비 (부산대학교 응용화학공학부) ;
  • 안석균 (부산대학교 응용화학공학부)
  • Bae, Jaehee (School of Chemical Engineering, Pusan National University) ;
  • Kim, Keumbee (School of Chemical Engineering, Pusan National University) ;
  • Choi, Subi (School of Chemical Engineering, Pusan National University) ;
  • Ahn, Suk-kyun (School of Chemical Engineering, Pusan National University)
  • 발행 : 2021.12.31

⟨ 이전 논문 다음 논문 ⟩

초록

자극응답성 액정 엘라스토머(liquid crystal elastomer)는 하이드로겔(hydrogel), 형상 기억 고분자(shape memory polymer)와 더불어 생체 특성을 모방한 인공 근육, 소프트 액추에이터 및 소프트 로봇을 위한 스마트 소재로 최근 높은 관심을 받고 있다. 특히, 액정 엘라스토머는 고무 탄성과 액정 이방성이 결합된 비등방성 탄성 고분자로, 열, 빛, 전기 및 수분과 같은 외부자극에 반응하여 가역적이며, 액정 분자들의 배향조절을 통한 프로그램된 변형이 가능하다. 액정 엘라스토머가 개념 증명을 하는 수준을 넘어 실제로 유용한 소프트 액추에이터 및 로봇 시스템에 적용되기 위해서는 우수한 구동력 및 작업 용량, 높은 구동 변형률, 빠른 응답 시간, 낮은 구동 온도, 다양한 외부 자극반응성 및 높은 에너지 전환 효율 등을 확보하는 것이 중요하다. 본 기고문에서는 액정 엘라스토머의 개념에 대해 소개하고, 이러한 소재가 소프트 액추에이터로써 광범위하게 활용될 수 있도록 다양한 성능들을 향상시킬 수 있는 방법에 대해 소개하고자 한다.

키워드

과제정보

이 논문은 정부(과학기술정보통신부)의 재원으로 한국연구재단(신진연구자지원사업 및 소재융합혁신기술개발사업)의 지원을 받아 작성되었습니다(NRF-2019R1C1C1006048 및 NRF-2019M3D1A2103918).

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