Electrical and thermal conductivity of polymers filled with metal powders

Mamunya, YeP; Davydenko, VV; Pissis, P; Lebedev, EV

dc.contributor.author	Mamunya, YeP	en
dc.contributor.author	Davydenko, VV	en
dc.contributor.author	Pissis, P	en
dc.contributor.author	Lebedev, EV	en
dc.date.accessioned	2014-03-01T01:17:47Z
dc.date.available	2014-03-01T01:17:47Z
dc.date.issued	2002	en
dc.identifier.issn	0014-3057	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14666
dc.subject	Copper	en
dc.subject	Electric Conductivity	en
dc.subject	Epoxy Resin	en
dc.subject	Nickel	en
dc.subject	Particle Shape	en
dc.subject	Percolation Theory	en
dc.subject	Percolation Threshold	en
dc.subject	Shell Structure	en
dc.subject	Spatial Distribution	en
dc.subject	Thermal Conductivity	en
dc.subject	Poly Vinyl Chloride	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Copper	en
dc.subject.other	Electric conductivity	en
dc.subject.other	Epoxy resins	en
dc.subject.other	Fillers	en
dc.subject.other	Nickel	en
dc.subject.other	Particle size analysis	en
dc.subject.other	Percolation (solid state)	en
dc.subject.other	Plastics fillers	en
dc.subject.other	Powder metals	en
dc.subject.other	Thermal conductivity	en
dc.subject.other	Conductive phase topology	en
dc.subject.other	Polyvinyl chlorides	en
dc.title	Electrical and thermal conductivity of polymers filled with metal powders	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0014-3057(02)00064-2	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0014-3057(02)00064-2	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	The electrical and thermal conductivity of systems based on epoxy resin (ER) and polyvinyl chloride) (PVC) filled with metal powders have been studied. Copper and nickel powders having different particle shapes were used as fillers. The composite preparation conditions allow the formation of a random distribution of metallic particles in the polymer matrix volume for the systems ER-Cu, ER-Ni. PVC-Cu and to create ordered shell structure in the PVC-Ni system. A model is proposed to describe the shell structure electric conductivity. The percolation theory equation sigma similar to (phi - phi(c))' with t = 2.4-3.2 (exceeding the universal t = 1.7 value) holds true for the systems with dispersed filler random distribution, but not for the PVC-Ni system. The percolation threshold (p, depends on both particle shape and type of spatial distribution (random or ordered). In contrast to the electrical conductivity, the concentration dependence of thermal conductivity shows no jump in the percolation threshold region. For the description of the concentration dependence of the electrical and thermal conductivity, the key parameter is the packing factor F. F takes into account the influence of conductive phase topology and particle shape on the electrical and thermal conductivity. (C) 2002 Elsevier Science Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	European Polymer Journal	en
dc.identifier.doi	10.1016/S0014-3057(02)00064-2	en
dc.identifier.isi	ISI:000176744400021	en
dc.identifier.volume	38	en
dc.identifier.issue	9	en
dc.identifier.spage	1887	en
dc.identifier.epage	1897	en