PTC effect and structure of polymer composites based on polypropylene/co-polyamide blend filled with dispersed iron

Kanapitsas, A; Tsonos, C; Logakis, E; Pandis, C; Pissis, P; Kontou, E; Mamunya, YP; Lebedev, EV; Delides, CG

dc.contributor.author	Kanapitsas, A	en
dc.contributor.author	Tsonos, C	en
dc.contributor.author	Logakis, E	en
dc.contributor.author	Pandis, C	en
dc.contributor.author	Pissis, P	en
dc.contributor.author	Kontou, E	en
dc.contributor.author	Mamunya, YP	en
dc.contributor.author	Lebedev, EV	en
dc.contributor.author	Delides, CG	en
dc.date.accessioned	2014-03-01T02:44:10Z
dc.date.available	2014-03-01T02:44:10Z
dc.date.issued	2006	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/31724
dc.subject	Iron	en
dc.subject	Percolation Threshold	en
dc.subject	Polymer Blend	en
dc.subject	Polypropylene	en
dc.subject	Temperature Dependence	en
dc.subject	Thermal Expansion	en
dc.subject	The Melting Temperature	en
dc.subject.other	Continuous phasis	en
dc.subject.other	Filler contents	en
dc.subject.other	Localisation	en
dc.subject.other	Melting temperatures	en
dc.subject.other	Morphological changes	en
dc.subject.other	Percolation behavior	en
dc.subject.other	Percolation thresholds	en
dc.subject.other	Polyamide blends	en
dc.subject.other	Polymer composite	en
dc.subject.other	Polymer phasis	en
dc.subject.other	PP matrix	en
dc.subject.other	PTC effect	en
dc.subject.other	Temperature dependence	en
dc.subject.other	Fillers	en
dc.subject.other	Microelectronics	en
dc.subject.other	Platinum compounds	en
dc.subject.other	Polymer matrix composites	en
dc.subject.other	Solvents	en
dc.subject.other	Thermal expansion	en
dc.subject.other	Filled polymers	en
dc.title	PTC effect and structure of polymer composites based on polypropylene/co-polyamide blend filled with dispersed iron	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/ICMEL.2006.1650975	en
heal.identifier.secondary	http://dx.doi.org/10.1109/ICMEL.2006.1650975	en
heal.identifier.secondary	1650975	en
heal.publicationDate	2006	en
heal.abstract	The temperature dependence of resistivity, structure and thermal expansion of composites based on polymer blend polypropylene/co-polyamide (PP/CPA) filled with dispersed iron (Fe) has been studied. The dependence of conductivity on filler content shows percolation behavior with the values of the percolation thresholds equal to 5 vol.% for the filled blend PP/CPA-Fe with two steps character of the conductivity curve. The evolution of structure of the composite PP/CPA-Fe demonstrates transition from polymer matrix CPA-Fe with inclusions of PP through co-continuous phases of both CPA-Fe and PP to PP matrix with inclusions of CPA-Fe. Such a structure occurs due to localisation of the filler only in one of the polymer phases, namely in CPA. The PP/CPA-Fe composites demonstrate PTC effect with the presence of a resistivity plateau. In such a system the PTC is caused by the break of the conductive structure of the filler inside the CPA-Fe phase due to the morphological changes in the vicinity of the melting temperature of CPA. © 2006 IEEE.	en
heal.journalName	2006 25th International Conference on Microelectronics, MIEL 2006 - Proceedings	en
dc.identifier.doi	10.1109/ICMEL.2006.1650975	en
dc.identifier.spage	391	en
dc.identifier.epage	394	en