Single-Layer and Double-Layer Microwave Absorbers Based on Graphene Nanosheets/Epoxy Resin Composite

被引：22
|
作者：
Min, Dandan [1 ]
Zhou, Wancheng [1 ]
Qing, Yuchang [1 ]
Luo, Fa [1 ]
Zhu, Dongmei [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China
来源：
NANO | 2017年 / 12卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Graphene nanosheets; microwave absorption; double-layer absorber; ELECTROMAGNETIC-WAVE ABSORPTION; CARBONYL IRON; PERFORMANCE; NANOWIRES; OXIDE; THICKNESS; GRAPHITE; BAND;
D O I：
10.1142/S1793292017500898
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Graphene nanosheets/epoxy resin (GN/EP) composites with enhanced microwave absorption properties were prepared. The influence of GNs content on the electromagnetic and microwave-absorbing properties of single-layer GN/EP composites was investigated in the frequency range of 2-18 GHz. A novel double-layer microwave absorber by combining absorbers with different contents of graphene was designed to achieve absorbers with wide absorption band and optimal microwave absorption. The calculated microwave absorption properties indicated that broader absorption band was obtained by the double-layer GN/EP composites. Reflection loss (RL) values below -5 dB can be obtained in the frequency range of 4.4-18 GHz by the double-layer GN/EP composites at thickness of 3.9 mm.
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页数：8
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