人工肌肉
碳纳米管
材料科学
旋转(数学)
电极
纱线
流体学
复合材料
纳米管
弯曲
扭转
转速
纳米技术
机械工程
执行机构
计算机科学
化学
电气工程
工程类
人工智能
物理化学
数学
几何学
作者
Javad Foroughi,Geoffrey M. Spinks,Gordon G. Wallace,Jiyoung Oh,Mikhail E. Kozlov,Shaoli Fang,Tissaphern Mirfakhrai,John D. W. Madden,Min Jae Shin,Seon Jeong Kim,Ray H. Baughman
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2011-10-13
卷期号:334 (6055): 494-497
被引量:491
标识
DOI:10.1126/science.1211220
摘要
Rotary motors of conventional design can be rather complex and are therefore difficult to miniaturize; previous carbon nanotube artificial muscles provide contraction and bending, but not rotation. We show that an electrolyte-filled twist-spun carbon nanotube yarn, much thinner than a human hair, functions as a torsional artificial muscle in a simple three-electrode electrochemical system, providing a reversible 15,000° rotation and 590 revolutions per minute. A hydrostatic actuation mechanism, as seen in muscular hydrostats in nature, explains the simultaneous occurrence of lengthwise contraction and torsional rotation during the yarn volume increase caused by electrochemical double-layer charge injection. The use of a torsional yarn muscle as a mixer for a fluidic chip is demonstrated.
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