Structure and dielectric properties of a thermoplastic blend containing dispersed metal

Zois, H; Mamunya, YP; Apekis, L

dc.contributor.author	Zois, H	en
dc.contributor.author	Mamunya, YP	en
dc.contributor.author	Apekis, L	en
dc.date.accessioned	2014-03-01T02:42:20Z
dc.date.available	2014-03-01T02:42:20Z
dc.date.issued	2003	en
dc.identifier.issn	1022-1360	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30955
dc.subject	Composite materials	en
dc.subject	Dielectric properties	en
dc.subject	Morphology	en
dc.subject	Percolation	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Composite materials	en
dc.subject.other	Dielectric relaxation	en
dc.subject.other	Inclusions	en
dc.subject.other	Microstructure	en
dc.subject.other	Optical microscopy	en
dc.subject.other	Thermoplastics	en
dc.subject.other	Percolation threshold value	en
dc.subject.other	Polymer blends	en
dc.subject.other	filler	en
dc.subject.other	iron	en
dc.subject.other	metal	en
dc.subject.other	polyethylene	en
dc.subject.other	polymer	en
dc.subject.other	polyoxymethylene	en
dc.subject.other	unclassified drug	en
dc.subject.other	conference paper	en
dc.subject.other	dielectric constant	en
dc.subject.other	dielectric relaxation spectroscopy	en
dc.subject.other	electric activity	en
dc.subject.other	measurement	en
dc.subject.other	microscopy	en
dc.subject.other	model	en
dc.subject.other	morphology	en
dc.subject.other	spectroscopy	en
dc.subject.other	structure analysis	en
dc.title	Structure and dielectric properties of a thermoplastic blend containing dispersed metal	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1002/masy.200350839	en
heal.identifier.secondary	http://dx.doi.org/10.1002/masy.200350839	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	In the present work broadband dielectric relaxation spectroscopy measurements were employed to investigate the dielectric properties of polymer composites. A polyethylene/polyoxymethylene (PE/POM) thermoplastic blend was used as a matrix, while the inclusions were iron (Fe) particles. For comparison, the two pure polymers- PE and POM- were used as a matrix, too. In the PE/ POM-Fe composites, the polymer matrix is two-phase and the filler particles are localized only in the POM phase, resulting in an ordered distribution of the dispersed filler particles within the blend. In PE-Fe and POM-Fe composites, the filler spatial distribution is random. The behaviour of all the composites studied is described in terms of the percolation theory. The PE/POM-Fe composites, based on the PE/POM blend, demonstrate different electrical behaviour compared to that of POM-Fe and PE-Fe systems. The percolation threshold value of the PE/POM-Fe composites was found much lower than that of the other two systems. The results were related to the microstructure of the composites. A schematic model for the morphology of the composites studied has been proposed. This model explains the peculiar behaviour of the PE/POM-Fe composites by taking into account the ordered distribution of the filler particles in a binary polymer matrix. Optical microscopy photographs confirm this model.	en
heal.publisher	WILEY-V C H VERLAG GMBH	en
heal.journalName	Macromolecular Symposia	en
dc.identifier.doi	10.1002/masy.200350839	en
dc.identifier.isi	ISI:000185554500040	en
dc.identifier.volume	198	en
dc.identifier.spage	461	en
dc.identifier.epage	472	en