ORBi: Dominkovics Zita - Effect of clay modification on the mechanism of local deformations in PA6 nanocomposites

Reference : Effect of clay modification on the mechanism of local deformations in PA6 nanocomposites


	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Materials science & engineering Physical, chemical, mathematical & earth Sciences : Chemistry
	To cite this reference:	http://hdl.handle.net/2268/131647

Title :	Effect of clay modification on the mechanism of local deformations in PA6 nanocomposites
Language :	English
Author, co-author :	Dominkovics, Zita [University of Technology and Economics and Institute of Materials Science and Environmental Chemistry, Budapest, Hungary > > > >]
	Naveau, Elodie [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Jérôme, Christine [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Hári, József [University of Technology and Economics and Institute of Materials Science and Environmental Chemistry, Budapest, Hungary > > > >]
	Renner, Károly [University of Technology and Economics and Institute of Materials Science and Environmental Chemistry, Budapest, Hungary > > > >]
	Móczó, János [University of Technology and Economics and Institute of Materials Science and Environmental Chemistry, Budapest, Hungary > > > >]
	Alexandre, Michaël [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Pukánszky, Béla [University of Technology and Economics and Institute of Materials Science and Environmental Chemistry, Budapest, Hungary > > > >]
Publication date :	25-Sep-2012
Journal title :	Macromolecular Materials and Engineering
Publisher :	Wiley
Audience :	International
ISSN :	1438-7492
e-ISSN :	1439-2054
City :	Weinheim
Keywords :	[en] nanostructured materials ; nanocomposite ; clay
Abstract :	[en] PA nanocomposites are prepared from clays organophilized with a phosphonium and an ammonium salt, and sodium montmorillonite is used as reference. The analysis of mechanical and micromechanical properties of the composites reveal that several micromechanical deformation processes occur in the PA/MMT composites. The matrix cavitates at relatively small stress. Processes related to non-exfoliated clay structural units are initiated at larger stresses. Sound is emitted mainly by the fracture of particles, but debonding may also occur. The plastic deformation of the matrix dominates at larger stresses and deformations. The various local deformations are independent of each other and composite properties are not determined by silicate related processes but by the deformation of the matrix.
Research units :	Center for Education and Research on Macromolecules (CERM)
Funders :	The National Scientific Research Fund of Hungary ; The Walloon Region in the frame of the FINECLAY program ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; the János Bolyai Research Scholarship of the Hungarian Academy of Sciences
Name of the research project :	FINECLAY
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/131647
DOI :	10.1002/mame.201200244

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