Investigation of Electromagnetic Interference Shielding Effectiveness of Cement-Based Composites Filled with Carbon Materials

Abstract:

The cement-based composite shielding materials filled with carbon materials such as ordinary carbon materials (graphite, coke and carbon black), carbon fiber and nano-carbon materials (carbon nano-tube and nano-carbon black) were prepared. The relationship of conductivity and shielding effectiveness in a frequency range of 100 KHz~1.5 GHz was studied. The electric properties of cement-based composites filled with carbon fiber is better than other carbon materials. With the contents of carbon fiber of 5.vol%, the average shielding effectiveness is about 37 dB and the maximum shielding effectiveness reaches 40 dB.

• Periodical: Advanced Materials Research (Volumes 168-170)
• Pages: 1021-1024
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.168-170.1021
• Online since: December 2010
• Authors: Guo Xuan Xiong, Zhi Bin Zhang, Min Deng, Yu Fen Zhou
• Keywords: Carbon Material, Cement-Based Composite, Shielding Effectiveness

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