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Controlled and scalable torsional actuation of twisted nylon 6 fiber
University of Wollongong, North Wollongong, New South Wales, Australia.
University of Wollongong, North Wollongong, New South Wales, Australia.
University of Wollongong, North Wollongong, New South Wales, Australia.
University of Wollongong, North Wollongong, New South Wales, Australia.
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2016 (English)In: Journal of Polymer Science Part B: Polymer Physics, ISSN 0887-6266, E-ISSN 1099-0488, Vol. 54, no 13, p. 1278-1286Article in journal (Refereed) Published
Abstract [en]

Large‐scale torsional actuation occurs in twisted fibers and yarns as a result of volume change induced electrochemically, thermally, photonically, and other means. A quantitative relationship between torsional actuation (stroke and torque) and volume change is here introduced. The analysis is based on experimental investigation of the effects of fiber diameter and inserted twist on the torsional stroke and torque measured when heating and cooling nylon 6 fibers over the temperature range of 26–62 °C. The results show that the torsional stroke depends only on the amount of twist inserted into the fiber and is independent of fiber diameter. The torque generated is larger in fibers with more inserted twist and with larger diameters. These results are successfully modeled using a single‐helix approximation of the twisted fiber structure

Place, publisher, year, edition, pages
John Wiley & Sons, 2016. Vol. 54, no 13, p. 1278-1286
Keywords [en]
actuator, artificial muscle, fibers, nylon, thermal properties, torsion, yarn
National Category
Polymer Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-151320DOI: 10.1002/polb.24035ISI: 000378411400010Scopus ID: 2-s2.0-84977913810OAI: oai:DiVA.org:liu-151320DiVA, id: diva2:1248843
Available from: 2018-09-17 Created: 2018-09-17 Last updated: 2018-09-18Bibliographically approved

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Aziz, Shazed
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