Morphology, mierohardness, and electrical properties of composites based on polypropylene, montmorillonite, and polypyrrole

Pandis, C; Logakis, E; Peoglos, V; Pissis, P; Omastova, M; Mravcakova, M; Janke, A; Pionteck, J; Peneva, Y; Minkova, L

dc.contributor.author	Pandis, C	en
dc.contributor.author	Logakis, E	en
dc.contributor.author	Peoglos, V	en
dc.contributor.author	Pissis, P	en
dc.contributor.author	Omastova, M	en
dc.contributor.author	Mravcakova, M	en
dc.contributor.author	Janke, A	en
dc.contributor.author	Pionteck, J	en
dc.contributor.author	Peneva, Y	en
dc.contributor.author	Minkova, L	en
dc.date.accessioned	2014-03-01T01:31:15Z
dc.date.available	2014-03-01T01:31:15Z
dc.date.issued	2009	en
dc.identifier.issn	0887-6266	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19762
dc.subject	AC conductivity	en
dc.subject	Clay	en
dc.subject	Composites	en
dc.subject	Mierohardness	en
dc.subject	Polypropylene	en
dc.subject	Polypyrroles	en
dc.subject.classification	Polymer Science	en
dc.subject.other	AC conductivity	en
dc.subject.other	Charge-transfer mechanisms	en
dc.subject.other	Composites	en
dc.subject.other	Creep rates	en
dc.subject.other	Dielectric relaxation spectroscopies	en
dc.subject.other	Electrical and dielectric properties	en
dc.subject.other	Electrical properties	en
dc.subject.other	Melt mixing	en
dc.subject.other	Mierohardness	en
dc.subject.other	Polypropylene matrices	en
dc.subject.other	Processing methods	en
dc.subject.other	Pure components	en
dc.subject.other	Three dimensions	en
dc.subject.other	Variable range hopping models	en
dc.subject.other	Wide frequency ranges	en
dc.subject.other	Charge transfer	en
dc.subject.other	Clay minerals	en
dc.subject.other	Compression molding	en
dc.subject.other	Electric properties	en
dc.subject.other	Ion exchange	en
dc.subject.other	Metallic matrix composites	en
dc.subject.other	Plastic products	en
dc.subject.other	Polypropylenes	en
dc.subject.other	Polypyrroles	en
dc.subject.other	Scanning electron microscopy	en
dc.subject.other	Silicate minerals	en
dc.subject.other	Sodium	en
dc.subject.other	Thermoplastics	en
dc.subject.other	Transmission electron microscopy	en
dc.subject.other	Dielectric properties of solids	en
dc.title	Morphology, mierohardness, and electrical properties of composites based on polypropylene, montmorillonite, and polypyrrole	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/polb.21646	en
heal.identifier.secondary	http://dx.doi.org/10.1002/polb.21646	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	The morphology, microhardness, and electrical properties of composites consisting of conductive polypyrrole (PPy) dispersed into a nonconductive polypropylene matrix (PP) as pure component or in form of a sodium montmorillonite/PPy (MMT/PPy) composite have been studied. For comparison, also PP/MMT composites were studied. All types of composites were processed by compression molding or by melt mixing followed by compression molding into plates, which were used for characterization. Scanning electron microscopy and transmission electron microscopy was used to examine the morphology of the prepared materials. The investigation of electrical and dielectric properties was done by dielectric relaxation spectroscopy in a wide frequency range and was related to the composite composition and processing method. The analysis of the conductivity as a function of temperature indicated that the charge transfer mechanism could be described by the variable range hopping model in three dimensions. The microhardness of PP/MMT/PPy composites with different content of MMT or PPy was determined and the creep rate has been estimated. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 407-423, 2009	en
heal.publisher	JOHN WILEY & SONS INC	en
heal.journalName	Journal of Polymer Science, Part B: Polymer Physics	en
dc.identifier.doi	10.1002/polb.21646	en
dc.identifier.isi	ISI:000263163000005	en
dc.identifier.volume	47	en
dc.identifier.issue	4	en
dc.identifier.spage	407	en
dc.identifier.epage	423	en