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- Title
Structure and Microwave Absorption Properties of Polyaniline/Zn Ferrite Composites.
- Authors
Xing, Honglong; Liu, Ye; Liu, Zhenfeng; Wang, Huan; Jia, Hanxiao
- Abstract
Polyaniline (PANI)/Zn ferrite composites were fabricated by simple two-step method. The crystal phase, particle size, morphology, thermal stability and conductivity were characterized. Electromagnetic parameters of PANI/Zn ferrite composites were measured at room temperature in the frequency of 2–18 GHz. The prepared composite had an amorphous fluffy structure, Zn ferrite nanoparticles with diameters ranging from 20 nm to 30 nm are encapsulated in PANI or on PANI surface, and the thermal stability of the composite is poor. But Zn ferrite content plays a key role in influencing this structure and regulating microwave attenuation capability. The PANI/Zn ferrite composites showed an enhanced microwave absorption performance in Ku band at thin coating thickness which corresponds to RL value below − 1 0 dB and the minimum reflection loss (RL) is − 5 4. 4 dB at 17.6 GHz with the coating thickness of 1.4 mm. Polyaniline/Zn ferrite composites were fabricated by simple two-step method. The prepared composite had an amorphous fluffy structure. Zn ferrite nanoparticles with diameters range from 20 to 30 nm are encapsulated in PANI or on PANI surface. Zn ferrite content plays a key role in influencing this structure and regulating microwave attenuation capability. The polyaniline/Zn ferrite composites showed an enhanced microwave absorption performance in Ku band at thin coating thickness.
- Subjects
POLYANILINES; THERMAL stability; THERMAL properties; FERRITE filters; AMORPHOUS alloys
- Publication
NANO, 2018, Vol 13, Issue 9, pN.PAG
- ISSN
1793-2920
- Publication type
Article
- DOI
10.1142/S1793292018501059