Preparation and microwave-absorbing property of EP/BaFe12O19/PANI composites

doi:10.1016/j.jmmm.2016.12.118

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Preparation and microwave-absorbing property of EP/BaFe12O19/PANI composites
	Feng, Huixia 1,2; Bai, Dezhong 2; Tan, Lin 1,2; Chen, Nali 1,2; Wang, Yueyi 2
刊名	Journal of Magnetism and Magnetic Materials
	2017-07-01
卷号	433 页码:1-7
关键词	Aniline Ferrite In situ combustion Iron compounds Magnetism Pollution Polyaniline Saturation magnetization Sol-gels Absorption characteristics Barium ferrites Electro magnetic pollution Expanded perlite Microwave absorbing properties Self-propagating combustion Situ oxidative polymerization Wave-absorbing property
ISSN号	03048853
DOI	10.1016/j.jmmm.2016.12.118
英文摘要	In this paper, we introduced expanded perlite (EP) into the system of ferrite composites for the first time. By sol-gel self-propagating combustion method, expanded perlite/barium ferrite (EP/BaFe12O19) was prepared, and then ternary composites of expanded perlite/barium ferrite/polyaniline (EP/BaFe12O19/PANI) were obtained by in-situ oxidative polymerization of aniline on EP/BaFe12O19 mixture. Although, as is well known, the values of saturation magnetization (Ms), remnant magnetization (Mr) and coercivity (Hc) of composites are all lower than the pure BaFe12O19 particles owing to the existence of the nonmagnetic EP and PANI, the EP/BaFe12O19/PANI composites exhibit absorption characteristics at the range of 2–18 GHz, the effective absorption bandwidth (less than −4 dB) reached 12.12 GHz and the minimum reflection loss of −5.66 dB at 8.48 GHz with only 2 mm thickness of absorbing layer. So the composites could resist urban electromagnetic pollution, such as wireless network, communication and so on, effectively. © 2017 Elsevier B.V.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	Elsevier B.V., Netherlands
WOS记录号	WOS:000399602700001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150564]
专题	石油化工学院教务处（创新创业学院）
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Feng, Huixia,Bai, Dezhong,Tan, Lin,et al. Preparation and microwave-absorbing property of EP/BaFe12O19/PANI composites[J]. Journal of Magnetism and Magnetic Materials,2017,433:1-7.
APA	Feng, Huixia,Bai, Dezhong,Tan, Lin,Chen, Nali,&Wang, Yueyi.(2017).Preparation and microwave-absorbing property of EP/BaFe12O19/PANI composites.Journal of Magnetism and Magnetic Materials,433,1-7.
MLA	Feng, Huixia,et al."Preparation and microwave-absorbing property of EP/BaFe12O19/PANI composites".Journal of Magnetism and Magnetic Materials 433(2017):1-7.