Core-Shell Structural Barium Ferrite/Polypyrrole Nanocomposites with Enhanced Microwave Absorption Properties

被引：3
|
作者：
Sun, Kai [1 ]
Li, Gang [1 ]
Lei, Yan-Hua [1 ]
Wu, Xin-Feng [1 ]
Zhang, Wei-Guo [2 ]
Fan, Guo-Hua [3 ]
Cheng, Chuan-Bing [4 ]
Fan, Run-Hua [1 ]
机构：
[1] Shanghai Maritime Univ, Coll Ocean Sci & Engn, Shanghai 201306, Peoples R China
[2] Shanghai Maritime Univ, Shanghai Offshore Engn Res Inst, Shanghai 201306, Peoples R China
[3] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China
[4] Qilu Univ Technol, Shandong Acad Sci, Sch Mat Sci & Engn, Jinan 250353, Peoples R China
来源：
JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS | 2020年 / 15卷 / 11期
关键词：
Microwave Absorption; Conductive Polymers; Core-Shell Structure; Dielectric Loss; Magnetic Loss; TUNABLE NEGATIVE PERMITTIVITY; COMPOSITES; METACOMPOSITES; PERFORMANCE; BEHAVIOR;
D O I：
10.1166/jno.2020.2856
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, core-shell structural barium ferrite/polypyrrole (BF/PPy) nanocomposites were prepared by a facile in-situ chemical oxidative polymerization method, and their electromagnetic properties were systematically studied. It was demonstrated that the nanocomposites with 15 mol% BF possessed the best electromagnetic wave absorption performance, and a reflection loss of -57.13 dB was achieved at 3.98 mm. Further study revealed that the optimized impedance matching and large attenuation constant were conducive to a good absorption performance. Meanwhile, the combined action of dielectric loss and magnetic loss was responsible for the electromagnetic wave attenuation. This study provides a supplementary approach to microwave absorption materials with a desirable absorption performance.
引用
收藏
页码：1312 / 1320
页数：9
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