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Conducting bicomponent fibers obtained by melt spinning of PA6 and polyolefins containing high amounts of carbonaceous fillers
RISE - Research Institutes of Sweden, Swerea, Swerea IVF.
Chalmers University of Technology.
RISE - Research Institutes of Sweden, Swerea, Swerea IVF.ORCID iD: 0000-0002-2679-3307
2012 (English)In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 123, no 2, 936-943 p.Article in journal (Refereed) Published
Abstract [en]

Melt spinning of conductive polymer composites (CPCs) is coupled with some difficulties such as a decrease of conductivity upon drawing and a reduced spinnability with increasing filler concentration. Applying bicomponent technology may provide the possibility to produce fibers from CPCs with a high filler concentration. A pilot-scale bicomponent melt spinning set-up was used to produce core/sheath fibers with fiber titers between 13 and 47 dtex. The sheath material was polyamide 6 (PA6) or polypropylene (PP) and the core material was a CPC. Two CPCs were used, polypropylene (PP) with carbon black (CB), denoted by PP/CB, and polyethylene (PE) with multiwalled carbon nanotubes (MWNT), denoted by PE/MWNT. The results showed that both materials could be used with a filler concentration of 10 wt % to obtain melt draw ratios up to 195. The volumetric fraction of core material in the bicomponent structure was 28%. A heat treatment of PP/CB fibers restored the conductivity to the level of the undrawn material, corresponding to an increase in conductivity by a factor 5. The same heat treatment had a positive effect on the conductivity of PE/MWNT fibers although the conductivity was not restored. © 2011 Wiley Periodicals, Inc.

Place, publisher, year, edition, pages
2012. Vol. 123, no 2, 936-943 p.
Keyword [en]
carbon black, conductivity, fibers, melt spinning, multiwalled carbon nanotubes, percolation
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-13354DOI: 10.1002/app.34539Scopus ID: 2-s2.0-80255138058OAI: oai:DiVA.org:ri-13354DiVA: diva2:973560
Available from: 2016-09-22 Created: 2016-09-22 Last updated: 2017-08-09Bibliographically approved

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CiteExportLink to record
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  • apa
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