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Melt spinning of carbon nanotube modified polypropylene conducting nanocomposite fibres
University of Borås, School of Engineering.
University of Borås, School of Engineering.
2009 (English)In: Solid State Phenomena, ISSN 1012-0394, E-ISSN 1662-9779, ISSN 1012-0394, Vol. 151, p. 43-47Article in journal (Refereed) Published
Abstract [en]

Blends of polypropylene with multi-walled carbon nanotubes (CNT) have been prepared and melt spun to fibre filaments. The resulted filaments have been characterised regarding conductivity, thermal properties, and morphology. DSC suggests that carbon nanotubes act as nucleating sites in polypropylene and the TGA shows a high increase in thermal stability. Conductivity around 0.001 S/cm are achieved for both as-spun fibre and drawn fibre. A higher load of CNT up to 15 wt % increases the conductivity to 2.8 S/cm in as-spun fibre, but due to a high fibre diameter variation during spinning resulting in fibre breakage, melt spinning is very difficult. This is due to a non-uniform stress distribution during the drawing steps which can be a result of a non-homogeneous PP-CNT blend and the spinning machine process limitations. Differences in conductivities for extruded rods, as-spun fibre and drawn fibre which are made from the same blends, suggests that the crystallinity can affect the conductivity of the PP/CNT fibre.

Place, publisher, year, edition, pages
Scitec Publications Ltd. , 2009. Vol. 151, p. 43-47
Keywords [en]
conducting fibres, melt spinning, smart textiles, carbon nanotube, draw-ratio
Keywords [sv]
Energi och material
National Category
Materials Engineering Polymer Chemistry
Identifiers
URN: urn:nbn:se:hb:diva-2639DOI: 10.4028/www.scientific.net/SSP.151.43Local ID: 2320/5621OAI: oai:DiVA.org:hb-2639DiVA, id: diva2:870733
Available from: 2015-11-13 Created: 2015-11-13 Last updated: 2017-10-05Bibliographically approved

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Skrifvars, MikaelSoroudi, Azadeh

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