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Multiple threshold percolation in polymer/filler composites

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dc.title Multiple threshold percolation in polymer/filler composites en
dc.contributor.author McQueen, Douglas
dc.contributor.author Jäger, Karl-Michael
dc.contributor.author Paligová, Michaela
dc.relation.ispartof Macromolecular Symposia
dc.identifier.issn 1022-1360 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2005-01
utb.relation.volume 221
dc.citation.spage 217
dc.citation.epage 225
dc.event.title Eurofillers 2003 Conference
dc.event.location Alicante
utb.event.state-en Spain
utb.event.state-cs Španělsko
dc.event.sdate 2003-09-08
dc.event.edate 2003-09-11
dc.type article
dc.type conferenceObject
dc.language.iso en
dc.publisher Wiley-VCH Verlag GmbH & Co. en
dc.identifier.doi 10.1002/masy.200550322
dc.relation.uri http://onlinelibrary.wiley.com/doi/10.1002/masy.200550322/abstract
dc.subject carbon black en
dc.subject dielectric constant en
dc.subject percolation en
dc.subject polymer composite en
dc.description.abstract Local variations in filler particle concentration and/or shape and orientation in static filler/polymer composites are modelled as distributions of percolation thresholds. The concentration variations can be due to insufficient mixing, formation of sernicrystalline voids during cooling from the melt, shrinkage during polymer curing, flow during physical compression or the like. Irregular filler shapes, especially elongated shapes, reduce the percolation threshold; thus natural variations in the shapes and orientations of filler particle aggregates lead to locally varying percolation thresholds. A distribution of percolation thresholds leads to an apparent percolation threshold based on the conductivity below the mean percolation threshold. For filler concentrations above the apparent percolation threshold the dielectric constant continues to increase before reaching a lowered peak value at the mean percolation threshold and then decreasing. Own experimental results on EBA /carbon black composites support the theory. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1001978
utb.identifier.scopus 2-s2.0-20444461564
utb.identifier.wok 000228384500023
utb.identifier.coden MSYME
utb.source d-wok
dc.date.accessioned 2011-08-09T07:34:21Z
dc.date.available 2011-08-09T07:34:21Z
utb.contributor.internalauthor Paligová, Michaela
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