Preparation and microwave absorption properties of polyaniline/Mn0.8Zn0.2Fe2O4 nanocomposite in 2–18 GHz
| Autor: | Wen Hua Lu, Cong Chen, Wei Rao, Ding Guo Li, Yong Hong Xiong |
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| Rok vydání: | 2013 |
| Předmět: |
Permittivity
Materials science Nanocomposite Scanning electron microscope Reflection loss Analytical chemistry Infrared spectroscopy Condensed Matter Physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Polyaniline Ferrite (magnet) Electrical and Electronic Engineering In situ polymerization |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 25:76-81 |
| ISSN: | 1573-482X 0957-4522 |
| DOI: | 10.1007/s10854-013-1551-1 |
| Popis: | The polyaniline/Mn0.8Zn0.2Fe2O4(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. |
| Databáze: | OpenAIRE |
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