Electromagnetic Interference Reflectivity of Nanostructured Manganese Ferrite Reinforced Polypyrrole Composites

被引：6
作者：
Chakraborty, Himel [1 ]
Chabri, Sumit [2 ]
Bhowmik, Nandagopal [2 ]
机构：
[1] Bengal Engn & Sci Univ, Sch Mat Sci & Engn, Howrah 711103, W Bengal, India
[2] Bengal Engn & Sci Univ, Dept Met & Mat Engn, Howrah 711103, W Bengal, India
来源：
TRANSACTIONS ON ELECTRICAL AND ELECTRONIC MATERIALS | 2013年 / 14卷 / 06期
关键词：
Nanocomposite; Magnetic materials; EMI shielding;
D O I：
10.4313/TEEM.2013.14.6.295
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nano-size manganese ferrite reinforced conductive polypyrrole composites reveal a core-shell structure by in situ polymerization, in the presence of dodecyl benzene sulfonic acid as the surfactant and dopant, and iron chloride as the oxidant. The structure and magnetic properties of manganese ferrite nano-fillers were measured, by using X-ray diffraction and vibrating sample magnetometer. The morphology, microstructure, and conductivity of the composite were characterized by transmission electron microscopy, Fourier transform infrared spectroscopy, and four-wire technique. The microwave-absorbing properties of composites reinforcement dispersed in resin coating with the coating thickness of 1.2 nm were investigated, by using vector network analyzers, in the frequency range of 81 similar to 2 GHz. A reflection loss of -8 dB was observed at 10.5 GHz.
引用
收藏
页码：295 / 298
页数：4
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