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학술지 Silver-Nanowires Coated Pitch-Tuned Coiled Polymer Actuator for Large Contractile Strain under Light-Loading
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저자
표동범, 임정묵, 문성철, 윤성률
발행일
201812
출처
International Journal of Precision Engineering and Manufacturing, v.19 no.12, pp.1985-1900
ISSN
2234-7593
출판사
Springer
DOI
https://dx.doi.org/10.1007/s12541-018-0217-6
협약과제
18HS1800, 신체기능의 이상이나 저하를 극복하기 위한 휴먼 청각 및 근력 증강 원천 기술 개발, 신형철
초록
We report a pitch-tuned coiled polymer actuator (CPA) with a compliant silver-nanowires (AgNWs) electrode. For a pitch-tuning of the CPA, we sequentially implement a twist-insertion for coiling a nylon-6 fiber, mechanical pre-stretching, and a couple of thermal treatments. When heated under a light-loading, the pitch-tuned CPA can produce a contractile strain far beyond the original one with a limited space to contract. Since the silver-nanowires electrode established on the coiled structure retains a fairly consistent electrical property allowing repetitive Joule-heating under a large uniaxial elongation with loading, the synergetic benefits from pitch-tuning and adopting the AgNWs as a Joule-heating electrode enables the CPA to produce electrically-controllable and large contractile strain under a light-loading that can be utilized for an artificial muscle of soft micro-robot.
키워드
Coiled polymer actuator, Joule-heating, Pitch-tuning, Silver-nanowires, Thermally-induced-contraction
KSP 제안 키워드
Artificial Muscle, Joule Heating, Limited space, Micro robot, Nanowires electrode, Nylon-6 fiber, Pre-stretching, Thermal treatments, electrical properties(I-V curve), polymer actuator, uniaxial elongation