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Soft material for soft actuators

delete2017-09-19
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OA
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A
Aslan Miriyev
K
Kenneth Stack
H
Hod Lipson *
DOI:10.1038/s41467-017-00685-3delete
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摘要

摘要

En 中文
Inspired by natural muscle, a key challenge in soft robotics is to develop self-contained electrically driven soft actuators with high strain density. Various characteristics of existing technologies, such as the high voltages required to trigger electroactive polymers (> 1KV), low strain (< 10%) of shape memory alloys and the need for external compressors and pressure-regulating components for hydraulic or pneumatic fluidicelastomer actuators, limit their practicality for untethered applications. Here we show a single self-contained soft robust composite material that combines the elastic properties of a polymeric matrix and the extreme volume change accompanying liquid-vapor transition. The material combines a high strain (up to 900%) and correspondingly high stress (up to 1.3 MPa) with low density (0.84 g cm(-3)). Along with its extremely low cost (about 3 cent per gram), simplicity of fabrication and environment-friendliness, these properties could enable new kinds of electrically driven entirely soft robots.
Keyword:
POLYMER-METAL COMPOSITES
DESIGN
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期刊

Nature Communications 封面图
Nature Communications
IF:
15.7
论文数:
9.3W
被引数:
91.2W

机构

C
Columbia University
学者数:
7.1W
论文数: 6.4W
被引数: 263
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引用论文

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