Electromagnetic shielding of polymer–matrix composites with metallic nanoparticles

To improve electromagnetic (EM) shielding and especially absorption of carbon fibre reinforced polymer–matrix composites for aircraft applications in high frequencies, the inclusion of metallic nanoparticles of iron, cobalt, nickel and iron oxide as a filler with low volume fraction is analyzed as w...

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Veröffentlicht in:	Composites. Part B, Engineering Engineering, 2011-09, Vol.42 (6), p.1420-1426
Hauptverfasser:	Jalali, M., Dauterstedt, S., Michaud, A., Wuthrich, R.
Format:	Artikel
Sprache:	eng
Schlagworte:	A. Carbon fibre A. Nano-structures A. Polymer–matrix composites absorption aircraft Aircraft components Applied sciences carbon Carbon fiber reinforced plastics cobalt Composites E. Thermosetting resin Electromagnetic shielding Exact sciences and technology Forms of application and semi-finished materials Inclusions Iron iron oxides Nanoparticles Nanostructure nickel Polymer industry, paints, wood Polymer matrix composites polymer nanocomposites Shielding Technology of polymers
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Beschreibung
Zusammenfassung:	To improve electromagnetic (EM) shielding and especially absorption of carbon fibre reinforced polymer–matrix composites for aircraft applications in high frequencies, the inclusion of metallic nanoparticles of iron, cobalt, nickel and iron oxide as a filler with low volume fraction is analyzed as well as the influence of different particle sizes. It is found that iron nanoparticles of 50 nm are able to improve total shielding effectiveness of a carbon fibre/polymer nanocomposite up to 15 dB in the considered 8.2–12.4 GHz ranging band. At the same time EM shielding behaviour is superiorly constant and the absorption part of shielding is increased.
ISSN:	1359-8368 1879-1069
DOI:	10.1016/j.compositesb.2011.05.018