Tension-induced twist of twist-spun carbon nanotube yarns and its effect on their torsional behavior

Abstract Twist-spun carbon nanotube (CNT) yarns exhibit a large and reversible rotational behavior under specific boundary conditions. In situ polarized Raman spectroscopy revealed that a tension-induced twist provides reversibility to this rotation. The orientation changes of individual CNTs were f...

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Autores principales:	Seung-Yeol Jeon, Dongil Kwon, Woong-Ryeol Yu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/99502a29343949648e2cb2ce13095789
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spelling	oai:doaj.org-article:99502a29343949648e2cb2ce130957892021-12-02T15:08:16ZTension-induced twist of twist-spun carbon nanotube yarns and its effect on their torsional behavior10.1038/s41598-018-24458-02045-2322https://doaj.org/article/99502a29343949648e2cb2ce130957892018-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-24458-0https://doaj.org/toc/2045-2322Abstract Twist-spun carbon nanotube (CNT) yarns exhibit a large and reversible rotational behavior under specific boundary conditions. In situ polarized Raman spectroscopy revealed that a tension-induced twist provides reversibility to this rotation. The orientation changes of individual CNTs were followed when twist-spun CNT yarns were untwisted and subsequently retwisted. Twist-spun CNT yarn, when untwisted and subsequently retwisted under the one-ended tethered boundary condition, showed irreversible orientation changes of the individual CNTs due to snarls formed during the untwisting operation, which resulted in macroscopic irreversible rotational behavior of the CNT yarns. In contrast, the orientation changes of the individual CNTs in twist-spun CNT yarn, when operated under the two-ended tethered boundary condition, were hysteretically reversible due to a tension-induced twist, which has not been reported previously. Indeed, the tension-induced twist was observed by following the orientation change of individual CNTs in elongated CNT yarns, which simulated the deformational behavior of the CNT yarn rotated under the two-ended tethered boundary condition.Seung-Yeol JeonDongil KwonWoong-Ryeol YuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Seung-Yeol Jeon Dongil Kwon Woong-Ryeol Yu Tension-induced twist of twist-spun carbon nanotube yarns and its effect on their torsional behavior
description	Abstract Twist-spun carbon nanotube (CNT) yarns exhibit a large and reversible rotational behavior under specific boundary conditions. In situ polarized Raman spectroscopy revealed that a tension-induced twist provides reversibility to this rotation. The orientation changes of individual CNTs were followed when twist-spun CNT yarns were untwisted and subsequently retwisted. Twist-spun CNT yarn, when untwisted and subsequently retwisted under the one-ended tethered boundary condition, showed irreversible orientation changes of the individual CNTs due to snarls formed during the untwisting operation, which resulted in macroscopic irreversible rotational behavior of the CNT yarns. In contrast, the orientation changes of the individual CNTs in twist-spun CNT yarn, when operated under the two-ended tethered boundary condition, were hysteretically reversible due to a tension-induced twist, which has not been reported previously. Indeed, the tension-induced twist was observed by following the orientation change of individual CNTs in elongated CNT yarns, which simulated the deformational behavior of the CNT yarn rotated under the two-ended tethered boundary condition.
format	article
author	Seung-Yeol Jeon Dongil Kwon Woong-Ryeol Yu
author_facet	Seung-Yeol Jeon Dongil Kwon Woong-Ryeol Yu
author_sort	Seung-Yeol Jeon
title	Tension-induced twist of twist-spun carbon nanotube yarns and its effect on their torsional behavior
title_short	Tension-induced twist of twist-spun carbon nanotube yarns and its effect on their torsional behavior
title_full	Tension-induced twist of twist-spun carbon nanotube yarns and its effect on their torsional behavior
title_fullStr	Tension-induced twist of twist-spun carbon nanotube yarns and its effect on their torsional behavior
title_full_unstemmed	Tension-induced twist of twist-spun carbon nanotube yarns and its effect on their torsional behavior
title_sort	tension-induced twist of twist-spun carbon nanotube yarns and its effect on their torsional behavior
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/99502a29343949648e2cb2ce13095789
work_keys_str_mv	AT seungyeoljeon tensioninducedtwistoftwistspuncarbonnanotubeyarnsanditseffectontheirtorsionalbehavior AT dongilkwon tensioninducedtwistoftwistspuncarbonnanotubeyarnsanditseffectontheirtorsionalbehavior AT woongryeolyu tensioninducedtwistoftwistspuncarbonnanotubeyarnsanditseffectontheirtorsionalbehavior
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Tension-induced twist of twist-spun carbon nanotube yarns and its effect on their torsional behavior

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