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Carbon Coils-Polyurethane Composites for the Shielding Materials of Electromagnetic Interference

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Abstract:

The carbon coils (d-CCs) having the diverse geometries were deposited on Al2O3 substrate by continuous injection of SF6 in C2H2 source gas under the thermal chemical vapor deposition system. d-CCs with polyurethane (PU) composites (d-CCs@PU) were fabricated by dispersing d-CCs in PU solvent with dimethylformamide (DMF) additive. The electromagnetic wave shielding properties of d-CCs@PU composites were investigated in the frequency range of 0.25-1.5 GHz. The shielding effectiveness (SE) of d-CCs@PU composites were measured and discussed according to the weight percent of d-CCs in CCs@PU composites and the thickness of d-CCs@PU composites layers. Based on these results, we discussed the shielding properties of d-CCs@PU composites and the main mechanism of the SE in this work.

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Periodical:

Advances in Science and Technology (Volume 95)

Pages:

50-55

DOI:

https://doi.org/10.4028/www.scientific.net/AST.95.50

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Online since:

October 2014

Authors:

Gi Hwan Kang, Sung Hoon Kim*

Keywords:

Carbon Coils, Electromagnetic Waves (EMW), Shielding Effectiveness, Shielding Mechanism, Thermal Chemical Vapor Deposition

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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