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Hybrid polyaniline/nanomagnetic particles composites: High performance materials for EMI shielding
Author(s) -
Kamchi Noureddine El,
Belaabed Belkacem,
Wojkiewicz JeanLuc,
Lamouri Saad,
Lasri Tuami
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.38036
Subject(s) - materials science , reflection loss , polyaniline , composite material , electromagnetic shielding , epoxy , composite number , sulfonic acid , conductivity , conductive polymer , doping , nanocomposite , hybrid material , permittivity , polymer , dielectric , polymer chemistry , optoelectronics , nanotechnology , polymerization , chemistry
In this work, two types of hybrid composite materials were elaborated. The first based on polyaniline (PANI) doped Camphor Sulfonic acid (CSA), Carbon‐Coated Cobalt (CCo), and FeNi nanoparticles dispersed in polyurethane. A value of 10 4 S/m of conductivity and a 90 dB of shielding effectiveness in multilayer structure were obtained over the 8–18 GHz frequency band. The second type, based on PANI doped para‐toluene sulfonic acid (PTSA), dispersed in epoxy resin with FeNi nanoparticles. A thick material with moderate conductivity and high attenuation of electromagnetic waves was obtained. It was found that a PANI‐PTSA/FeNi/epoxy resin composite with thicknesses of 9.7 and 6.5 mm had, respectively, reflection loss values of −22 dB at 9.52 GHz, and −20.7 dB at 14.7 GHz. The electromagnetic properties of the elaborated structure hybrid materials can be optimized to increase the electromagnetic reflection–absorption properties. Thus, the obtained structure can be used in shielding and radar absorbing materials applications. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013