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Microwave Electromagnetic Property of La(NO3)3-Doped Multiwalled Carbon Nanotube/Polyvinyl Chloride Composites

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Abstract

Using La(NO3)3-doped multiwalled carbon nanotubes (MWCNTs-La(NO3)3) as the absorber and polyvinyl chloride (PVC) as the matrix, the electromagnetic and absorbing properties of MWCNT-La(NO3)3/PVC composites were studied. The complex permittivity of MWCNT-La(NO3)3/PVC composites decreased slightly with increasing frequency. The reflection loss minimum declined with increasing thickness and shifted to lower frequency region in the frequency region of 2–18 GHz, and the microwave absorbing property increased, compared to MWCNT/PVC composite. The reflection loss minimum (−32.57 dB, 3.52 GHz) of MWCNT-La(NO3)3/PVC composite with 8 mm thickness was the lowest. It is feasible to develop microwave absorbing composites with strong absorption and wide band properties utilizing rare earth-modified MWCNTs as the absorber.

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Acknowledgments

This research work was financially supported by the Natural Science Foundation for Young Scientists of Jiangxi Province, China (No. 20114BAB216024).

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Authors and Affiliations

  1. College of Science, Jiujiang University, Jiujiang, 332005, China

    Cuiling Hou & Jianning Wei

  2. School of Mechanical and Materials Engineering, Jiujiang University, Jiujiang, 332005, China

    Shihua Song

  3. Department of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an, 710072, China

    Tiehu Li

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  1. Cuiling Hou
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  2. Shihua Song
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  4. Tiehu Li
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Correspondence to Cuiling Hou.

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Hou, C., Song, S., Wei, J. et al. Microwave Electromagnetic Property of La(NO3)3-Doped Multiwalled Carbon Nanotube/Polyvinyl Chloride Composites. J Supercond Nov Magn 28, 2077–2082 (2015). https://doi.org/10.1007/s10948-015-3010-0

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  • DOI: https://doi.org/10.1007/s10948-015-3010-0

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