Research on Microwave Absorbing Properties of Multi-Walled Carbon Nanotubes-Reinforced Cement-Based Composites

Abstract:

The microwave absorbing properties of multi-walled carbon nanotubes-reinforced cement-based composites (MWCNTs/CC) in the range of 2–18 GHz were investigated in this paper. MWCNTs with the addition of 0.08% by mass of cement were incorporated to cement mortar. It is shown that MWCNTs which act as microwave absorber reinforce the microwave absorbing properties of MWCNTs/CC. Two absorbing peaks of MWCNTs/CC appear in the range of 4–8 GHz, one lies in 4.9 GHz with the reflectivity of -29.1 dB and the other lies in 6.8 GHz with the reflectivity of - 19.2 dB, indicating that the absorbing properties of the composites are improved greatly.

• Periodical: Advanced Materials Research (Volume 629)
• Pages: 261-265
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.629.261
• Online since: December 2012
• Authors: Bao Min Wang, Zhi Qiang Guo, Yu Han, Yuan Zhang, Hai Nan Ma
• Keywords: Cement-Based Composite, Microwave Absorbing Properties, Multi-Walled Carbon Nanotube (MWCNT)

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