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TitleDispersion of carbon nanotubes in polycarbonate and its effect on the composite properties
Author(s)Leer, C.
Carneiro, O. S.
Covas, J. A.
Maia, J. M.
Hattum, F. W. J. van
Bernardo, C. A.
Biró, L. P.
Horváth, Z. E.
Kiricsi, I.
KeywordsCarbon nanotubes
Electrical resistivity
Issue date2006
PublisherTrans Tech Publications Ltd
JournalMaterials Science Forum
Abstract(s)The effect of the dispersion state of carbon nanotubes in polycarbonate on the rheological, mechanical and electrical properties of melt-extruded compounds is presented. The dispersion state was monitored by means of grey values distribution histograms of optical micrographs of the composites. Increasing the processing residence time, and hence the deformation induced by the surrounding polymer, increased the level of dispersion of CNTs in the matrix. This, in turn, resulted in a large improvement of the CNTs reinforcement effect and decreased composite electrical resistivity. Rheological behaviour is in agreement with these observations.
TypeConference paper
Publisher version
AccessRestricted access (UMinho)
Appears in Collections:IPC - Artigos em revistas científicas internacionais com arbitragem

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