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Self-plied and twist-stable carbon nanotube yarn artificial muscles driven by organic solvent adsorption†
Nanoscale ( IF 5.8 ) Pub Date : 2018-04-09 00:00:00 , DOI: 10.1039/c8nr01300d Kaiyun Jin 1, 2, 3, 4, 5 , Silan Zhang 5, 6, 7, 8, 9 , Susheng Zhou 5, 6, 7, 8, 9 , Jian Qiao 5, 6, 7, 8, 9 , Yanhui Song 5, 6, 7, 8, 9 , Jiangtao Di 5, 6, 7, 8, 9 , Dengsong Zhang 1, 2, 3, 4, 5 , Qingwen Li 5, 6, 7, 8, 9
Nanoscale ( IF 5.8 ) Pub Date : 2018-04-09 00:00:00 , DOI: 10.1039/c8nr01300d Kaiyun Jin 1, 2, 3, 4, 5 , Silan Zhang 5, 6, 7, 8, 9 , Susheng Zhou 5, 6, 7, 8, 9 , Jian Qiao 5, 6, 7, 8, 9 , Yanhui Song 5, 6, 7, 8, 9 , Jiangtao Di 5, 6, 7, 8, 9 , Dengsong Zhang 1, 2, 3, 4, 5 , Qingwen Li 5, 6, 7, 8, 9
Affiliation
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Artificial yarn/fiber muscles have recently attracted considerable interest for various applications. These muscles can provide large-stroke tensile and torsional actuations, resulting from inserted twists. However, tensional tethering of twisted muscles is generally needed to avoid muscle snarling and untwisting. In this paper a carbon nanotube (CNT) yarn muscle that is tethering-free and twist-stable is reported. The yarn muscle is prepared by allowing the self-plying of a coiled CNT yarn. When driven by acetone adsorption, this muscle shows decoupled actuations, which provide fast and reversible ∼13.3% contraction strain against a constant stress corresponding to ∼38 000 times the muscle weight but almost zero torsional strokes. The cycling test shows that the self-plied muscle has very good structural stability and actuation reversibility. Applied joule heating can help increase the desorption of acetone and increase the operation frequency of the self-plied muscle. Furthermore, by controlling the coupling between the joule heating and acetone adsorption/desorption, tensile actuations from negative to positive have been achieved. This twist-stable feature could considerably facilitate the practical applications of such muscle.
中文翻译：
由有机溶剂吸附驱动的自捻和加捻稳定的碳纳米管纱线人造肌肉†
人造纱线/纤维肌肉近来已经引起了对于各种应用的相当大的兴趣。由于插入的扭曲，这些肌肉可以提供大行程的拉伸和扭转驱动。但是，通常需要对扭曲的肌肉进行拉紧束缚，以避免肌肉咆哮和不扭曲。本文报道了一种无束缚和扭曲稳定的碳纳米管（CNT）纱线肌肉。纱线肌肉是通过允许卷曲的CNT纱线自行铺层而制备的。当通过丙酮吸附驱动时，该肌肉表现出解耦的驱动力，在恒定应力（对应于3.8倍肌肉重量但几乎为零的扭转冲程）下，提供快速且可逆的约13.3％的收缩应变。循环测试表明，自拼合肌肉具有非常好的结构稳定性和致动可逆性。施加焦耳加热可以帮助增加丙酮的解吸率，并增加自叠合肌肉的操作频率。此外，通过控制焦耳加热和丙酮吸附/解吸之间的耦合，已经实现了从负向正的拉伸致动。这种扭曲稳定的特征可以极大地促进这种肌肉的实际应用。
更新日期：2018-04-09
中文翻译：
由有机溶剂吸附驱动的自捻和加捻稳定的碳纳米管纱线人造肌肉†
人造纱线/纤维肌肉近来已经引起了对于各种应用的相当大的兴趣。由于插入的扭曲，这些肌肉可以提供大行程的拉伸和扭转驱动。但是，通常需要对扭曲的肌肉进行拉紧束缚，以避免肌肉咆哮和不扭曲。本文报道了一种无束缚和扭曲稳定的碳纳米管（CNT）纱线肌肉。纱线肌肉是通过允许卷曲的CNT纱线自行铺层而制备的。当通过丙酮吸附驱动时，该肌肉表现出解耦的驱动力，在恒定应力（对应于3.8倍肌肉重量但几乎为零的扭转冲程）下，提供快速且可逆的约13.3％的收缩应变。循环测试表明，自拼合肌肉具有非常好的结构稳定性和致动可逆性。施加焦耳加热可以帮助增加丙酮的解吸率，并增加自叠合肌肉的操作频率。此外，通过控制焦耳加热和丙酮吸附/解吸之间的耦合，已经实现了从负向正的拉伸致动。这种扭曲稳定的特征可以极大地促进这种肌肉的实际应用。
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