کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5431658 1508827 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhanced anisotropic response of dielectric elastomer actuators with microcombed and etched carbon nanotube sheet electrodes
ترجمه فارسی عنوان
پاسخ غیر انسایتی اپتیکال الاستومر دی الکتریک با الکترودهای ورق نانولوله کربنی میکروکوب و کرافت
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی

Dielectric elastomers (DE), also known as dielectric electroactive polymers offer tremendous potential in a wide-ranging applications including microrobotics and wearable responsive systems. The real-world application of DEs, however, has been limited by a number of factors, including facile means of producing directional stress/strain. As a critical component of the DE actuator, the electrodes should have high electrical conductance under finite in-plane deformation, good electromechanical stability, and ease of shaping based on the design requirements. In this work we investigate highly aligned carbon nanotube (CNT) sheets as electrodes in DE actuators to yield anisotropic electromechanical response. The morphology of CNT sheets were altered by microcombing and selective laser etching to enhance mechanical anisotropy. The enhancement of CNT sheets alignment results in almost pure unidirectional strain of 33% at a relatively moderate electric field. The results demonstrate that the deformation anisotropy of DE actuators can be significantly improved by directional laser etching of the electrodes rather than microcombing alone.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 120, August 2017, Pages 366-373
نویسندگان
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