Preparation and microwave absorption properties of polyaniline/Mn0.8Zn0.2Fe2O4 nanocomposite in 2–18 GHz

The polyaniline/Mn 0.8 Zn 0.2 Fe 2 O 4 (PANI/MZF) nanocomposite was prepared by an in situ polymerization method. The samples were characterized by Fourier transform infrared spectrometer, X-ray diffraction, scanning electron microscope and vibrating sample magnetometer. The complex permittivity and...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2014, Vol.25 (1), p.76-81
Main Authors: Li, Ding Guo, Chen, Cong, Rao, Wei, Lu, Wen Hua, Xiong, Yong Hong
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Materials Science
Optical and Electronic Materials
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Summary:The polyaniline/Mn 0.8 Zn 0.2 Fe 2 O 4 (PANI/MZF) nanocomposite was prepared by an in situ polymerization method. The samples were characterized by Fourier transform infrared spectrometer, X-ray diffraction, scanning electron microscope and vibrating sample magnetometer. The complex permittivity and complex permeability for the nanocomposites were measured by wave-guide method with vector network analyzer in 2.0–18.0 GHz. The reflection losses ( R L ) of the nanocomposites were investigated according to the wave transmission theory. The results showed the maximum reflection loss of the PANI/MZF nanocomposite was about −20.6 dB at 14.4 GHz with a bandwidth of 5.6 GHz. In conclusion, a wider absorption frequency range could be obtained by adding polyaniline contain in the MZF ferrite. The PANI/MZF nanocomposite is a good microwave shielding and absorbing materials at higher frequency.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-013-1551-1