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Polymer Bulletin
Erschienen in: Polymer Bulletin 2/2012

01.01.2012 | Original Paper

Electromagnetic interference shielding effects of polyaniline-coated multi-wall carbon nanotubes/maghemite nanocomposites

verfasst von: Jumi Yun, Hyung-Il Kim

Erschienen in: Polymer Bulletin | Ausgabe 2/2012

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Abstract

Highly conductive nanocomposites were prepared by in situ polymerization of polyaniline (PANi) and multi-walled carbon nanotubes (MWCNTs) as electromagnetic interference shielding materials. γ-Fe2O3 nanoparticles were also incorporated in the nanocomposites to improve the ferromagnetic properties. SEM and TEM images showed the uniformly coated PANi on the surface of MWCNTs and γ-Fe2O3. XRD peaks also confirmed the presence of MWCNT and γ-Fe2O3 in the nanocomposites. The nanocomposites showed significant improvement in permittivity, permeability, and electromagnetic interference shielding efficiency due to the conductive effect of MWCNTs and the magnetic effect of γ-Fe2O3. The electromagnetic interference shielding efficiency of nanocomposites increased up to 34.1 dB due to the synergetic effect of reflection and absorption of electromagnetic interference by MWCNTs and γ-Fe2O3 additives.
Vorheriger Artikel Supercapacitive properties of polyaniline/hydrous RuO2 composite electrode
Nächster Artikel Modification of surface properties of polypropylene films by blending with poly(ethylene-b-ethylene oxide) and its application

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Metadaten
Titel
Electromagnetic interference shielding effects of polyaniline-coated multi-wall carbon nanotubes/maghemite nanocomposites
verfasst von
Jumi Yun
Hyung-Il Kim
Publikationsdatum
01.01.2012
Verlag
Springer-Verlag
Erschienen in
Polymer Bulletin / Ausgabe 2/2012
Print ISSN: 0170-0839
Elektronische ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-011-0651-4

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