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Electrically conductive polymeric bi-component fibers containing a high load of low-structured carbon black
RISE - Research Institutes of Sweden, Materials and Production, IVF. Chalmers University of Technology, Sweden.ORCID iD: 0000-0002-1950-8762
Chalmers University of Technology, Sweden.
RISE - Research Institutes of Sweden, Materials and Production, IVF. Chalmers University of Technology, Sweden.ORCID iD: 0000-0002-2679-3307
2015 (English)In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 132, no 29, article id 42255Article in journal (Refereed) Published
Abstract [en]

Melt spinning at semi-industrial conditions of carbon black (CB) containing textiles fibers with enhanced electrical conductivity suitable for heating applications is described. A conductive compound of CB and high density polyethylene (HDPE) was incorporated into the core of bi-component fibers which had a sheath of polyamide 6 (PA6). The rheological and fiber-forming properties of a low-structured and a high-structured CB/HDPE composite were compared in terms of their conductivity. The low-structured CB gave the best trade-off between processability and final conductivity. This was discussed in terms of the strength of the resulting percolated network of carbon particles and its effect on the spin line stability during melt spinning. The conductivity was found to be further enhanced with maintained mechanical properties by an in line thermal annealing of the fibers at temperatures in the vicinity of the melting point of HDPE. By an adequate choice of CB and annealing conditions a conductivity of 1.5 S/cm of the core material was obtained. The usefulness of the fibers for heating applications was demonstrated by means of a woven fabric containing the conductive fibers in the warp direction. By applying a voltage of 48 V the surface temperature of the fabric rose from 20 to 30°C.

Place, publisher, year, edition, pages
John Wiley and Sons Inc. , 2015. Vol. 132, no 29, article id 42255
Keywords [en]
composites, conducting polymers, fibers, graphene and fullerenes, nanotubes
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-13312DOI: 10.1002/app.42255Scopus ID: 2-s2.0-84929050556OAI: oai:DiVA.org:ri-13312DiVA, id: diva2:973518
Available from: 2016-09-22 Created: 2016-09-22 Last updated: 2019-07-03Bibliographically approved

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Nilsson, ErikHagström, Bengt

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