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Radar Absorption Properties of Ni 0.5 Zn 0.5 Fe 2 O 4 /PANI/epoxy Nanocomposites
Author(s) -
Didehban Khadijeh,
Yarahmadi Elham,
NouriAhangarani Farshid,
Mirmohammadi Seyed Amin,
BahriLaleh Naeimeh
Publication year - 2015
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201500136
Subject(s) - polyaniline , nanocomposite , reflection loss , nanocrystalline material , ferrite (magnet) , aniline , polymerization , chemical engineering , in situ polymerization , materials science , composite number , aqueous solution , nanoparticle , chemistry , nuclear chemistry , composite material , polymer , nanotechnology , organic chemistry , engineering
A nitratecitrate gel was prepared from metallic nitrates and citric acid by solgel process and was further used to synthesize Ni 0.5 Zn 0.5 Fe 2 O 4 nanocrystalline powder by auto‐combustion. Then, two novel 15 and 35% (w/w) magnetic Ni 0.5 Zn 0.5 Fe 2 O 4 containing polyaniline nanocomposites, named as PANI‐Ni15 and PANI‐Ni35, respectively, were prepared via in‐situ polymerization of aniline in an aqueous solution containing proper amount of Ni 0.5 Zn 0.5 Fe 2 O 4 magnetic powder. The incorporation of the nanopowders to PANI matrix was confirmed by X‐ray diffraction (XRD), IR and SEM. Synthesized PANI‐NiZn ferrite composite particles were subsequently added to an epoxy resin matrix to produce related nanocomposites. The morphological properties of these nanocomposite materials were investigated by SEM and TEM. The electromagnetic‐absorbing properties were studied by measuring the reflection loss in the frequency range of 8.0 to 12.0 GHz. Results showed the reflection loss of the PANI‐Ni35 composite is higher than pure polyaniline and PANI‐Ni15. The good reflection loss of the nanocomposites suggests their potential applicability as radar absorber.