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Poling and characterization of piezoelectric polymer fibers for use in textile sensors
University of Borås, Swedish School of Textiles.
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2013 (English)In: Sensors and Actuators A-Physical, ISSN 0924-4247, E-ISSN 1873-3069, Vol. 201, p. 477-486Article in journal (Refereed) Published
Abstract [en]

This study reports on the poling and characteristics of a melt-spun piezoelectric bicomponent fiber with poly(vinylidene fluoride) (PVDF) as its sheath component and a conductive composite with carbon black (CB) and high density polyethylene (HDPE) as its core component. The influence of poling conditions on the piezoelectric properties of the fibers has been investigated. The poling parameters temperature, time and poling voltage have been varied and the piezoelectric effect of both contact- and corona-poled yarns have been evaluated. The results show that a high piezoelectric effect is achieved when the poling voltage is high as possible and the poling temperature is between 60°C and 120°C. It was also shown that permanent polarization is achieved in a time as short as 2 second in corona-poled fibers. A yarn exposed to a sinusoidal axial tension of 0.07% strain (the corresponding force amplitude was 0.05 N) shows an intrinsic voltage output of 4 V. The mean power from a 25 mm length of yarn is estimated to be 15nW. To demonstrate the fibers sensor properties, they are woven into a textile fabric from which a force sensor is manufactured and used to detect the heartbeat of a human.

Place, publisher, year, edition, pages
Elsevier S.A. , 2013. Vol. 201, p. 477-486
Keywords [en]
Smart textiles, Sensors, Smart textiles
National Category
Materials Engineering
Research subject
Textiles and Fashion (General)
Identifiers
URN: urn:nbn:se:hb:diva-1772DOI: 10.1016/j.sna.2013.08.011ISI: 000325836400060Local ID: 2320/13234OAI: oai:DiVA.org:hb-1772DiVA, id: diva2:869841
Available from: 2015-11-13 Created: 2015-11-13 Last updated: 2017-12-06Bibliographically approved

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Lund, Anja

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • modern-language-association-8th-edition
  • vancouver
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Language
  • de-DE
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  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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