electromagnetic interferences (EMI) shielding material
Abstract :
[en] A multifunctional hybrid material class in the form of a sandwich panel has been developed towards the com- bined optimization of mechanical and electromagnetic absorption performance. The faces of the panel are made of glass fibre reinforced epoxy composites and the core is made of carbon nanotube reinforced polymer foam filling a metallic honeycomb. The different processing strategies and options tested to fabricate the core material are described aswell as the associated scientific and technological issues. The most efficient processing route is by foaming the nanocomposite with a chemical foaming agent directly inside the honeycomb. This route offers a good surface finish and the operation can be achieved in one step. But, in order to produce large panels with a semi-continuous process, thermo-mechanical insertion of the foamed nanocomposite with supercritical CO2 can be more suitable. The characterization of the electromagnetic absorption of the panels produced by dif- ferent routes shows that the performance is not much sensitive to processing defects making possible upscaling to mass production.
Research Center/Unit :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry Materials science & engineering
Author, co-author :
Bollen, Pierre; Université catholique de Louvain (UCL), Research Center in Architectured and Composite Materials (ARCOMAT)
Quievy, Nicolas; Université catholique de Louvain (UCL), Research Center in Architectured and Composite Materials (ARCOMAT)
Detrembleur, Christophe ; University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Thomassin, Jean-Michel ; University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Monnereau, Laure; University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Bailly, Christian; Université catholique de Louvain (UCL), Research Center in Architectured and Composite Materials (ARCOMAT), Institute of Condensed Matter and Nanosciences
Huynen, Isabelle; Université catholique de Louvain (UCL), Research Center in Architectured and Composite Materials (ARCOMAT), nstitute of Information and Communication Technologies, Electronics and Applied Mathematics
Pardoen, Thomas; Université catholique de Louvain (UCL), Research Center in Architectured and Composite Materials (ARCOMAT), Institute of Mechanics, Materials, and Civil Engineering
Language :
English
Title :
Processing of a new class of multifunctional hybrid for electromagnetic absorption based on a foam filled honeycomb
Publication date :
05 January 2016
Journal title :
Materials and Design
ISSN :
0261-3069
Publisher :
Elsevier Science, Oxford, United Kingdom
Volume :
89
Pages :
323-334
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture F.R.S.-FNRS - Fonds de la Recherche Scientifique The Walloon Region in the frame of the Winnomat II "Multimasec" project
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