EFFECT OF CARBON NANOTUBES ON THE ELECTRICAL PROPERTIES OF THE POLYMERIC COMPOSITES

Sergey Gango; Konstantin Gusev; Evgeniy Ilin; Mikhail Predtechensky; Vladimir Solovyev; Sergey Trifonov

EFFECT OF CARBON NANOTUBES ON THE ELECTRICAL PROPERTIES OF THE POLYMERIC COMPOSITES

Sergey Gango, Konstantin Gusev, Evgeniy Ilin, Mikhail Predtechensky, Vladimir Solovyev, Sergey Trifonov

Last modified: 15.04.2019

Abstract

Experimental study of single-wall carbon nabotubes (CNT) effect on the electrical properties of polymeric composite materials based on epoxy matrix has been carried out. Direct-current (DC) as well as alternating-current (AC) electrical conductivity of nanocomposites with different CNT concentrations have been investigated in the temperature interval from 293 K to 373 K. Measurements of Seebeck coefficient confirm n-type conductivity of composite with CNTs. Percolation threshold of the composite material under study has been estimated. It has been found that addition of single-wall CNT at low concentration causes hysteresis of current-voltage characteristics and the temperature dependences of electrical conductivity as well as its anisotropy in the samples under study. No noticeable frequency dependence of the AC electrical conductivity has been found in the frequency range from 100 Hz to 300 kHz.

Keywords

polymeric composites; carbon nanotubes; electrical conductivity

References

[1] C. P. Poole, Jr., F. J. Owens, Introduction to nanotechnology. Wiley-Interscience, 2003.

[2] Yiu-Wing Mai and Zhong-Zhen Yu, Eds., Polymer nanocomposites. Cambridge, England: Woodhead Publishing Limited, 2006.

[3] C. Leopold, T. Augustin, T. Schwebler, J. Lehnann, W. V. Liebig, B. Fiedler, “Influence of carbon nanoparticle modification on the mechanical and electrical properties of epoxy in small volumes”, Journal of Colloid and Interface Science, vol. 506, pp. 620–632, 2017.

[4] A. A. Moosa, A. Ramazani, M. N. Ibrahim, “Effects of carbon-nanotubes on the mechanical and electrical properties of epoxy nanocomposites”, International Journal of Current Engineering and Technology, vol. 5, pp. 3253–3258, 2015.

[5] A. V. Eletskii, A. A. Knizhnik, B. V. Potapkin, J. M. Kenny, “Electrical characteristics of carbon nanotube doped composites”, Uspekhi Fizicheskikh Nauk, vol. 185, pp. 225–270, 2015.

[6] K. Gusev, V. Gerbreders, A. Ogurcovs, V. Solovyev, “Structure and mechanical properties of polymeric composites with carbon nanotubes”, Environment. Technology. Resources: Proceedings of the 12th International Scientific and Practical Conference, Rezekne, Latvia, vol. …, pp. …-..., 2019.

[7] S. E. Gango, V. N. Markov, V. G. Solov’ev, “A cell for measuring the thermal electromotive force of microscopic samples by a pulse method”, Instruments and Experimental Techniques, vol. 41, pp. 858–859, 1998.

[8] T. Blythe, D. Bloor, Electrical properties of polymers. Cambridge, England: University Press, 2005.

ENVIRONMENT. TECHNOLOGY. RESOURCES 16th International Scientific and Practical Conference. June 19-20, 2025, Rezekne Academy of Technologies, Rezekne, Latvia