Publications논문

Carbon nanotubes–elastomer actuator driven electrothermally by low-voltage
2019-11-14 13:26:55 조회수162
Jae-Hun Jeong,(a) Tae Jin Mun,(a) Hyunsoo Kim,(a) Ji Hwan Moon,(a) Duck Weon Lee,(a) Ray H. Baughman(b) and Seon Jeong Kim(*a) *)Corresponding authors // a)Center for Self-powered Actuation, Department of Biomedical Engineering, Hanyang University, Seoul 04763, Korea // b)The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, Texas 75083, USA 원문 링크 : https://pubs.rsc.org/en/content/articlelanding/2019/na/c8na00204e#!divAbstract

Abstract

Electroactive polymers (EAPs) have attracted attention in many fields such as robotics, sensors devices and biomedical devices. However, the practical application of these actuators has still problems due to incomplete reversibility and high applied voltage. In order to overcome these problems, in this study, we have shown actuator based on phase transition that is consisted of the carbon nanotubes yarn infiltrated with the mixture of elastomer and methanol. Our electrothermally driven hybrid coiled yarn muscle provides a work capacity of 0.49 kJ kg−1 and a tensile contraction of 30.5% within ∼3 s on an applied stress of 3.1 MPa at an applied DC voltage of 5 V. The maximum work capacity is under isobaric 23.4 MPa, which is 110 times that of typical mammalian skeletal muscles. This actuator may serve as a promising candidate for the practical use in soft robotics. 
 
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