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Thermomechanical effects in the torsional actuation of twisted nylon 6 fiber
University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales, Australia.
The University of Sydney, Sydney, New South Wales, Australia.
University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales, Australia.
University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales, Australia.
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2017 (English)In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 134, no 47, article id 45529Article in journal (Refereed) Published
Abstract [en]

Thermally induced torsional and tensile actuators based on twisted polymeric fibers have opened new opportunities for the application of artificial muscles. These newly developed actuators show significant torsional deformations when subjected to temperature changes, and this torsional actuation is the defining mechanism for tensile actuation of twisted and coiled fibers. To date it has been found that these actuators require multiple heat/cool cycles (referred to as “training” cycles) prior to obtaining a fully reversible actuation response. Herein, the effect of annealing conditions applied to twisted nylon 6 monofilament is investigated and it is shown that annealing at 200 °C eliminates the need for the training cycles. Furthermore, the effect of an applied external torque on the torsional actuation is also investigated and torsional creep is shown to be affected by the temperature and load

Place, publisher, year, edition, pages
John Wiley & Sons, 2017. Vol. 134, no 47, article id 45529
Keywords [en]
polyamides, sensors and actuators, thermal properties
National Category
Polymer Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-151321DOI: 10.1002/app.45529ISI: 000409466800010Scopus ID: 2-s2.0-85026447256OAI: oai:DiVA.org:liu-151321DiVA, id: diva2:1248844
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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Output format
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