Abstract: The magnetic composites of cenosphere/barium ferrite were prepared by a sol-gel auto-combustion method.Then,the electromagnetic composite materials of cenosphere/barium ferrite/polyaniline were successfully synthesized using in-situ doping polymerization deposition technique.The morphology,structure,electromagnetic and microwave absorption properties of composite powders were characterized by scanning electron microscope (SEM),fourier transform infrared spectroscopy (FT-IR),X-ray diffraction (XRD),vibrating sample magnetometer (VSM) and vector network analyzer (VAN).The results showed that the composites had characteristic diffraction peaks of polyaniline and barium ferrite,and the cenospheres surfaces were covered with coral-like coating.In addition,the magnetic properties decreased with increasing the amount of polyaniline,while the microwave absorption properties were enhanced.The maximum microwave reflection loss reached -42.94dB at 16.4GHz with a sample thickness of 1.2mm.
庞建峰, 李琴, 翟建平, 邱全, 谢兴勇, 马喜君. 漂珠/钡铁氧体/聚苯胺复合材料的电磁性能及吸波机理研究[J]. 化工新型材料, 2018, 46(12): 76-80.
Pang Jianfeng, Li Qin, Zhai Jianping, Qiu Quan, Xie Xingyong, Ma Xijun. Electromagnetism and microwave-absorption of cenosphere/barium ferrite/polyaniline. New Chemical Materials, 2018, 46(12): 76-80.
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