High electromagnetic shielding effectiveness of polyaniline-polyurethane composites in the microwave band

Issue title: Special Volume: Proceedings of the eleventh International Symposium on Applied Electromagnetics and Mechanics ISEM-Versailles ISEM 03

Article type: Research Article

Authors: Wojkiewicz, J.L.^{a; *} | Fauveaux, S.^a | Redon, N.^a | Miane, J.L.^b

Affiliations: [a] LPCCEM, Department Metrology, 941, rue Charles Bourseul, Ecole des Mines, BP 838 59508 Douai, France | [b] PIOM, Avenue Pey Berland, ENSCPB, UMR 5501 CNRS, 33607 Pessac, France

Correspondence: [*] Corresponding author. Tel.: +33 (0) 3 27 71 23 33; Fax: +33 (0) 3 27 71 29 19; E-mail: [email protected]

Abstract: Electromagnetic shielding effectiveness properties of polyaniline – polyurethane nanocomposites at microwave frequencies were studied. The conducting blends showed a very low percolation threshold and their electronic properties can be tuned easily with the mass fraction of polyaniline in the blends or through chemical process. Measurements on composite materials were performed in the 8.2 to 18 GHz band using two sets of waveguides. Shielding effectiveness from 30 to 90 dB were found for mono and three layer samples with a very light weight and good mechanical properties.

Keywords: electromagnetic shielding effectiveness, nanocomposite, polyaniline, microwave

DOI: 10.3233/JAE-2004-563

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 19, no. 1-4, pp. 203-206, 2004