Reference : Foams of polycaprolactone/MWNT nanocomposites for efficient EMI reduction
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/10967
Foams of polycaprolactone/MWNT nanocomposites for efficient EMI reduction
English
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 mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Detrembleur, Christophe mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
2008
Journal of Materials Chemistry
Royal Society Chemistry
18
7
792-796
Yes (verified by ORBi)
International
0959-9428
Cambridge
UK
[en] nanostructured material ; nanocomposite ; carbon nanotube ; green technology ; supercritical carbon dioxide
[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.
Center for Education and Research on Macromolecules (CERM)
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
Researchers
http://hdl.handle.net/2268/10967
10.1039/b709864b
http://www.rsc.org/ej/JM/2008/b709864b.pdf

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