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The role and importance of surface modification of polyester fabrics by chitosan and hexadecylpyridinium chloride for the electrical and electro-thermal performance of graphene-modified smart textiles
University of Borås, Faculty of Textiles, Engineering and Business. University of Borås. (Polymeric E-textile)ORCID iD: 0000-0002-0362-7568
University of Borås, Faculty of Textiles, Engineering and Business. (Polymeric E-textile)ORCID iD: 0000-0002-1209-3270
University of Borås, Faculty of Textiles, Engineering and Business. (Polymeric E-textile)
2019 (English)In: New Journal of Chemistry, ISSN 1144-0546, E-ISSN 1369-9261, Vol. 17, no 43, p. 6643-6658, article id 10.1039/c8nj05445bArticle in journal (Refereed) Published
Abstract [en]

Graphene has the potential to create highly valuable electrical conductive textile systems with maintained pliability and psychological comfort. There have already been numerous studies regarding electrically functionalized graphene-coated textiles. However, processing development is far from being exhausted. Here we have studied electro-thermal textiles based on the most common fibers, polyester, and an industry-relevant graphene impregnation method by introducing surface pre-modification of fabrics for graphene-modified textile processing. For this purpose, polyester fabrics were treated with four different cationic agents and impregnated with graphene oxide (GO) colloidal particles. Then, direct chemical reduction of GO to an electrically conductive graphene oxide (rGO) was performed. A pristine fabric modified by rGO showed a high resistance of 27.3 kΩ □−1 without any electro-thermal activity, whilst chitosan-treated (CS) and hexadecylpyridinium chloride-treated (HDPC) fabrics had resistance values of 2.7 and 0.59 kΩ □−1 respectively, and excellent heat propagation with a good temperature distribution. The steady-state temperature of CS-treated and HDPC-treated fabrics increased from 28 °C and 33 °C to 60 °C and 120 °C, respectively, as the voltage applied increased from 10 V to 30 V. These rGO-modified fabrics also have excellent electro-mechanical performance, and are good candidates for flexible strain sensor applications.

Place, publisher, year, edition, pages
2019. Vol. 17, no 43, p. 6643-6658, article id 10.1039/c8nj05445b
Keywords [en]
GRAPHENE
National Category
Engineering and Technology
Research subject
Teacher Education and Education Work
Identifiers
URN: urn:nbn:se:hb:diva-21009DOI: 10.1039/c8nj05445bOAI: oai:DiVA.org:hb-21009DiVA, id: diva2:1314369
Available from: 2019-05-08 Created: 2019-05-08 Last updated: 2019-10-14Bibliographically approved

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Milad, Asadi MiankafsheBashir, TariqPersson, Nils-Krister

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