Stretch Sensing Properties of Conductive Knitted Structures of PEDOT-coated Viscose and Polyester YarnsShow others and affiliations
2013 (English)In: Textile research journal, ISSN 0040-5175, E-ISSN 1746-7748, Vol. 84, no 3, p. 323-334Article in journal (Refereed) Published
Sustainable development
The content falls within the scope of Sustainable Development
Abstract [en]
Wearable textile-based stretch sensors for health-care monitoring allow physiological and medical evaluation without interfering in the daily routine of the patient. In our previous work, we successfully coated viscose and polyester (PES)fibers with the conjugated polymer poly(3,4-ethylenedioxythiophene) (PEDOT), using a chemical vapor deposition (CVD) process. In the present paper we report the possibility of producing a large quantity of PEDOT-coated conductive fibers with acceptable mechanical strength and frictional properties, so that knitted stretch sensors can be produced. In utilizing these knitted structures we have demonstrated the possibility of producing a textile-based monitoring device which is more readily integrated into wearable clothing than the previous metal-containing structures. The performance of viscose and PES knitted structures as stretch sensors has been investigated using a cyclic tester of our own design. For imitation of respiratory and joint movement, the variation in electrical properties of the knitted structures was examined at 5 to 50% elongation, and the performance of knitted viscose and PES structures was then compared on the basis of the cyclic testing results. In order to determine the effect of washing on PEDOT coatings and the knitted structures, two washing cycles were performed. After washing, the persistence of PEDOT coating on knitted structures was investigated using FT–IR spectroscopy and thermogravimetric analysis. In the case of PES fiber, it was revealed that stretch sensing behavior persisted even after the washing cycles. These structures thus have the potential to be utilized in medical textiles for monitoring the physiological activities of patients, such as breathing rate and joint movement.
Place, publisher, year, edition, pages
SAGE , 2013. Vol. 84, no 3, p. 323-334
Keywords [en]
viscose, polyester, PEDOT coating, knitted structures, stretch sensors, health-care monitoring, Organic Electronics, Conductive Polymers, Stretch Sensors
National Category
Natural Sciences Polymer Chemistry
Research subject
Resource Recovery
Identifiers
URN: urn:nbn:se:hb:diva-1589DOI: 10.1177/0040517513494253ISI: 000331359100009Local ID: 2320/12516OAI: oai:DiVA.org:hb-1589DiVA, id: diva2:869658
Note
Sponsorship:
Stiftelsen Svensk Textilforskning Sweden
2015-11-132015-11-132017-12-09Bibliographically approved