Abstract: FeSiCr/polyaniline composites were prepared by magnetic controlled in-situ polymerization,which was modified by γ-aminopropyltriethoxysilane (KH550), aniline as monomer, ammonium persulfate as oxidant and hydrochloric acid as dopant. The microstructure and absorbing property of the composites were characterized and analyzed by XRD, SEM, FTIR and vector network analyzer. The results show that polyaniline prepared under magnetic field has high crystallinity and micro-orientation, and the modified flake FeSiCr has good interfacial bonding ability, so that PANI can be well coated on its surface. In the range of 2.6—5.85 GHz, the effective absorption band of FeSiCr/PANI composites moves to high frequency with the increases of An content. When the magnetic field is 92 mT, the minimum reflectivity of FeSiCr/PANI composite by magnetically controlled in-situ polymerization can reach -15.9 dB at 4.81 GHz, and the frequency band with reflectivity less than -10 dB is 3.77—5.69 GHz.
金丹, 王欢, 杜雨果. 磁控原位聚合铁硅铬/聚苯胺复合材料吸波性能研究[J]. 材料导报, 2020, 34(24): 24150-24154.
JIN Dan, WANG Huan, DU Yuguo. Study on Absorbing Properties of Magnetically Controlled In-situ Polymerized FeSiCr/Polyaniline Composites. Materials Reports, 2020, 34(24): 24150-24154.
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2020, Vol. 34 
