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Journal of Nanoparticle Research

Erschienen in:

01.01.2013 | Research Paper

Enhanced electromagnetic interference shielding effectiveness of polyaniline functionalized carbon nanotubes filled polystyrene composites

verfasst von: Parveen Saini, Veena Choudhary

Erschienen in: Journal of Nanoparticle Research | Ausgabe 1/2013

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Abstract

Multiwall carbon nanotubes (MWCNTs)/polystyrene composites were fabricated by solution processing route using non-covalently functionalized (polyaniline coated) MWCNTs. These composites exhibit an extremely low percolation threshold (0.12 vol.% MWCNT) along with micro porosity and are found to have potential applications in the areas of electromagnetic interference (EMI) shielding and electrostatic dissipation (ESD) with an ESD time of 0.78 s and shielding effectiveness of −23.3 dB (>99 % attenuation). The EMI shielding was found to be dominated by absorption (−18.7 dB) with a nominal contribution from reflection (−4.6 dB) that can explained in terms of multiple internal reflection phenomenon driven by high conductivity and the porous structure.

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Titel: Enhanced electromagnetic interference shielding effectiveness of polyaniline functionalized carbon nanotubes filled polystyrene composites
verfasst von: Parveen Saini
Veena Choudhary
Publikationsdatum: 01.01.2013
Verlag: Springer Netherlands
Erschienen in: Journal of Nanoparticle Research / Ausgabe 1/2013
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-012-1415-2

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