Electromagnetic interference (EMI) shielding of ordered mesoporous carbon (OMC)/paraffin composites

Hongjing Wu; Liuding Wang; Jiangdong Zhang; Gao Wei; Shaoli Guo; Zhongyuan Shen

doi:10.1166/jnn.2014.8738

Electromagnetic interference (EMI) shielding of ordered mesoporous carbon (OMC)/paraffin composites

Hongjing Wu, Liuding Wang, Jiangdong Zhang, Gao Wei, Shaoli Guo, Zhongyuan Shen

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The ordered mesoporous carbon (OMC)/paraffin composites were successfully prepared by a facile physical mixing method and an EMI SE of 21-23 dB was achieved at the OMC loading of 5.69 wt.% in the X band. This indicates that the composites are very suitable for an application as effective and lightweight EMI shielding materials. The EMI shielding of the composite shows an absorptiondominant mechanism, i.e., a contribution shift from reflection to absorption is observed with the increase in OMC loading and frequency. This could be explained by the intrinsic properties (electrical conductivity, complex permittivity and potential large defects) and novel structure of the composites.

Original language	English
Pages (from-to)	6016-6021
Number of pages	6
Journal	Journal of Nanoscience and Nanotechnology
Volume	14
Issue number	8
DOIs	https://doi.org/10.1166/jnn.2014.8738
State	Published - Aug 2014

Keywords

Absorption-dominant mechanism
Electromagnetic interference shielding
Ordered mesoporous carbon

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abstract = "The ordered mesoporous carbon (OMC)/paraffin composites were successfully prepared by a facile physical mixing method and an EMI SE of 21-23 dB was achieved at the OMC loading of 5.69 wt.% in the X band. This indicates that the composites are very suitable for an application as effective and lightweight EMI shielding materials. The EMI shielding of the composite shows an absorptiondominant mechanism, i.e., a contribution shift from reflection to absorption is observed with the increase in OMC loading and frequency. This could be explained by the intrinsic properties (electrical conductivity, complex permittivity and potential large defects) and novel structure of the composites.",

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AU - Wu, Hongjing

AU - Wang, Liuding

AU - Zhang, Jiangdong

AU - Wei, Gao

AU - Guo, Shaoli

AU - Shen, Zhongyuan

PY - 2014/8

Y1 - 2014/8

N2 - The ordered mesoporous carbon (OMC)/paraffin composites were successfully prepared by a facile physical mixing method and an EMI SE of 21-23 dB was achieved at the OMC loading of 5.69 wt.% in the X band. This indicates that the composites are very suitable for an application as effective and lightweight EMI shielding materials. The EMI shielding of the composite shows an absorptiondominant mechanism, i.e., a contribution shift from reflection to absorption is observed with the increase in OMC loading and frequency. This could be explained by the intrinsic properties (electrical conductivity, complex permittivity and potential large defects) and novel structure of the composites.

AB - The ordered mesoporous carbon (OMC)/paraffin composites were successfully prepared by a facile physical mixing method and an EMI SE of 21-23 dB was achieved at the OMC loading of 5.69 wt.% in the X band. This indicates that the composites are very suitable for an application as effective and lightweight EMI shielding materials. The EMI shielding of the composite shows an absorptiondominant mechanism, i.e., a contribution shift from reflection to absorption is observed with the increase in OMC loading and frequency. This could be explained by the intrinsic properties (electrical conductivity, complex permittivity and potential large defects) and novel structure of the composites.

KW - Absorption-dominant mechanism

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Electromagnetic interference (EMI) shielding of ordered mesoporous carbon (OMC)/paraffin composites

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Keywords

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