Article (Scientific journals)
Electromagnetic absorption properties of carbon nanotube nanocomposite foam filling honeycomb waveguide structures
Quiévy, Nicolas; Bollen, Pierre; Thomassin, Jean-Michel et al.
2012In IEEE Transactions on Electromagnetic Compatibility, 24 (1), p. 43-51
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Keywords :
electromagnetic interferences (EMI) shielding material; nanostructured material; nanocomposite; carbon nanotube
Abstract :
[en] Carbon nanotube reinforced polymer foams filling a metallic honeycomb were processed and characterized for the production of hybrid materials with high electromagnetic absorption potential. Electromagnetic modeling and experimental characterization of the hybrids proved that the honeycomb, acting as a hexagonal waveguide, improves the absorption properties in the gigahertz range above the cutoff frequency. The electromagnetic absorption can be tuned by changing the hybrid material properties. The required levels of electrical conductivity are attained owing to the dispersion of low amounts (1–2 wt%) of carbon nanotubes inside the polymermatrix. The combination of the foam and honeycomb architecture contributes to decrease the real part of the relative effective permittivity Re{εr,eff }. Varying the cell shape of the honeycomb changes the frequency range for high absorption. An analytical model for the absorption has been developed, showing good agreement with the experimental results.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry
Materials science & engineering
Author, co-author :
Quiévy, Nicolas;  Université catholique de Louvain (UCL)
Bollen, Pierre;  Université catholique de Louvain (UCL)
Thomassin, Jean-Michel ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Detrembleur, Christophe ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Pardoen, Thomas;  Université catholique de Louvain (UCL)
Bailly, Christian;  Université catholique de Louvain (UCL)
Huynen, Isabelle;  Université catholique de Louvain (UCL)
Language :
English
Title :
Electromagnetic absorption properties of carbon nanotube nanocomposite foam filling honeycomb waveguide structures
Publication date :
February 2012
Journal title :
IEEE Transactions on Electromagnetic Compatibility
ISSN :
0018-9375
eISSN :
1558-187X
Publisher :
IEEE
Volume :
24
Issue :
1
Pages :
43-51
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 24 April 2012

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