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Chin. Phys. B, 2017, Vol. 26(2): 025207    DOI: 10.1088/1674-1056/26/2/025207

Microwave absorption properties of Ag naowires/carbon black composites

Hai-Long Huang(黄海龙), Hui Xia(夏辉), Zhi-Bo Guo(郭智博), Yu Chen(陈羽), Hong-Jian Li(李宏建)
School of Physics and Electronics, Central South University, Changsha 410083, China
Abstract  The composite that can absorb the high-performance electromagnetic (EM) wave is constructed into a sandwiched structure composed of carbon black (CB)/ethylene-vinyl acetate (EVA) and Ag naowires (AgNWs). The AgNWs sandwiched between two CB/EVA layers are used to improve the absorption properties of composite. The effects of EVA-to-CB weight ratio, concentration and diameter of AgNWs with a thickness of 0.4 mm on microwave absorption are investigated. The results indicate that for an EVA-to-CB weight ratio of 1:3, AgNW concentration of 1.0 mg/100 mL, and average diameter of 56 nm, the reflection loss (RL) of the composite is below -10 dB in a frequency range of 9.3 Ghz-18.0 GHz, with the minimum values of -40.0 dB and -25.6 dB at 13.5 GHz and 15.3 GHz, respectively. A finite element method (FEM) is used for calculating the RL of the composite. The calculated results are in agreement with the experimental data.
Keywords:  microwave absorption      sliver nanowires      finite element method      polymer-based composites  
Received:  25 July 2016      Revised:  21 October 2016      Accepted manuscript online: 
PACS:  52.70.Gw (Radio-frequency and microwave measurements)  
Fund: Project partly supported by the National Natural Science Foundation of China (Grant No. 61275174).
Corresponding Authors:  Hui Xia     E-mail:

Cite this article: 

Hai-Long Huang(黄海龙), Hui Xia(夏辉), Zhi-Bo Guo(郭智博), Yu Chen(陈羽), Hong-Jian Li(李宏建) Microwave absorption properties of Ag naowires/carbon black composites 2017 Chin. Phys. B 26 025207

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