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Melt spinning of conductive textile fibers with hybridized graphite nanoplatelets and carbon black filler

Erik Nilsson (Institutionen för material- och tillverkningsteknik, Polymera material och kompositer) ; Henrik Oxfall (Institutionen för material- och tillverkningsteknik, Polymera material och kompositer) ; W. Wandelt ; Rodney Rychwalski (Institutionen för material- och tillverkningsteknik, Polymera material och kompositer) ; Bengt Hagström (Institutionen för material- och tillverkningsteknik, Polymera material och kompositer)
Journal of Applied Polymer Science (0021-8995). Vol. 130 (2013), 4, p. 2579-2587.
[Artikel, refereegranskad vetenskaplig]

In this study, two different carbon fillers: carbon black (CB) and graphite nanoplatelets (GNP) are studied as conductive fillers for the preparation of conductive polypropylene (PP) nanocomposites. In order to obtain a homogenous dispersion of GNP, GNP/PP composites were prepared by two different methods: solid state mixing (SSM) and traditional melt mixing (MM). The result shows that MM is more efficient in the dispersion of GNP particles compared to SSM method. PP nanocomposites containing only one conductive filler and two fillers were prepared at different filler concentrations. Based on the analysis of electrical and rheological properties of the prepared nanocomposites, it shows that a hybridized composite with equal amounts of GNP and CB has favorable processing properties. Conductive fibers with a core/sheath structure were produced on a bicomponent melt spinning line. The core materials of these fibers are the hybridized GNP/CB/PP nanocomposite and the sheath is pure polyamide. It was found that GNPs were separated during melt and cold drawing which results in the decrease of conductivity. However, the conductivity could partly be restored by the heat treatment.

Nyckelord: conducting polymers, fibers, manufacturing, nanotubes, graphene and fullerenes, textiles



Denna post skapades 2013-09-16. Senast ändrad 2016-07-22.
CPL Pubid: 183420

 

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