ORBi: Thomassin Jean-Michel - Foams of polycaprolactone/MWNT nanocomposites for efficient EMI reduction

Reference : Foams of polycaprolactone/MWNT nanocomposites for efficient EMI reduction


	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/2268/10967

Title :	Foams of polycaprolactone/MWNT nanocomposites for efficient EMI reduction
Language :	English
Author, co-author :	Thomassin, Jean-Michel [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Pagnoulle, Christophe [Physiol SA, Liège, Belgium > > > >]
	Bednarz, Lukasz [The Catholic University of Louvain (UCL) > > Microwave Laboratory > >]
	Huynen, Isabelle [The Catholic University of Louvain (UCL) > > Microwave Laboratory > >]
	Jérôme, Robert [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Detrembleur, Christophe [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Publication date :	2008
Journal title :	Journal of Materials Chemistry
Publisher :	Royal Society Chemistry
Volume :	18
Issue/season :	7
Pages :	792-796
Audience :	International
ISSN :	0959-9428
City :	Cambridge
Country :	UK
Keywords :	[en] nanostructured material ; nanocomposite ; carbon nanotube ; green technology ; supercritical carbon dioxide
Abstract :	[en] Nanocomposites of polycaprolactone (PCL) filled with multi-walled carbon nanotubes (MWNTs) were foamed by supercritical CO2 in order to prepare materials with reduced electromagnetic interference (EMI). Two mixing techniques were used, i.e., melt blending and co-precipitation. Shielding efficiency as high as 60 to 80 dB together with a low reflectivity was observed at a very low vol% of MWNTs (0.25 vol%). The reflectivity of the nanocomposites was advantageously decreased upon foaming. The uniformity of the open-cell structure was assessed by scanning electron microscopy. These foamed PCL/MWNT nanocomposites are very promising EMI shielding materials because their performances result from absorption at low filler content and not from reflection at relatively high filler content as was previously the case.
Research units :	Center for Education and Research on Macromolecules (CERM)
Funders :	The ‘‘Région Wallonne’’ in the frame of the ‘‘Nanotechnologies’’ program ENABLE ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/10967
DOI :	10.1039/b709864b
Other URL :	http://www.rsc.org/ej/JM/2008/b709864b.pdf

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