Unusual Dielectric Loss Properties of Carbon Nanotube—Polyvinylidene Fluoride Composites in Low Frequency Region (100 Hz < f < 1 MHz)

Yi Zhen; Juan Arredondo; Guang-Lin Zhao

doi:10.4236/ojopm.2013.34016

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Open Journal of Organic Polymer Material... > Vol.3 No.4, October 2013

Unusual Dielectric Loss Properties of Carbon Nanotube—Polyvinylidene Fluoride Composites in Low Frequency Region (100 Hz < f < 1 MHz) ()

Yi Zhen, Juan Arredondo, Guang-Lin Zhao

Department of Physics, Southern University and A&M College, Baton Rouge, USA.

DOI: 10.4236/ojopm.2013.34016 PDF HTML XML 4,596 Downloads 7,129 Views Citations

Abstract

Systematic investigations on the dielectric properties of multi-walled carbon nanotubes (MWNTs)-polyvinylidene fluoride (PVDF) composites with a wide MWNT concentration range (2 - 9 wt%) have been carried out. It is revealed that the dielectric constant is increased by the addition of an appropriate amount of MWNTs at room temperature. However, when the concentration of MWNTs in the composites reaches above 5 wt%, negative dielectric constants and large dielectric loss in the composites are observed in the low frequency range. The ferroelectric CNT-PVDF polymer composites containing more than 5 wt% MWNTs have a strong dielectric absorption, which has the potential for acoustic applications.

Keywords

Polymer Composites; Carbon Nanotube; Dielectric Properties

Share and Cite:

Y. Zhen, J. Arredondo and G. Zhao, "Unusual Dielectric Loss Properties of Carbon Nanotube—Polyvinylidene Fluoride Composites in Low Frequency Region (100 Hz < f < 1 MHz)," Open Journal of Organic Polymer Materials, Vol. 3 No. 4, 2013, pp. 99-103. doi: 10.4236/ojopm.2013.34016.

Conflicts of Interest

The authors declare no conflicts of interest.

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