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2019•IOP Conference Series Materials Science and EngineeringOpen access

Conductivity of a carbon nanotubes-epoxy resin nanocomposite

Alexandr Blokhin, Igor Zaytsev, A Sukhorukov, Roman A. Stolyarov, A Popov, Igor Nikolaevich Burmistrov, D. E. Kobzev, Viktor S. Yagubov

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Abstract

Abstract Multi-walled carbon nanotubes (CNTs) were used to reduce the electrical resistivity (i.e., increase the conductivity) of industrial epoxy. Samples loaded with 6 wt.% CNTs showed a 9-fold increase in the conductivity. The starting epoxy resin is dielectric. The electrical resistivity data showed a percolation threshold between 0.5 and 2 wt.% CNTs loading. The temperature coefficient of electrical resistivity of the samples containing 2 wt.% in the temperature range from 20 to 60°C was 11.5·10-3 K-1. These results suggested that the conductivity of the CNTs-epoxy composites is improved, without any need for chemical functionalization of the nanotubes.

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Abstract Multi-walled carbon nanotubes (CNTs) were used to reduce the electrical resistivity (i.e., increase the conductivity) of industrial epoxy. Samples loaded with 6 wt.% CNTs showed a 9-fold increase in the conductivity. The starting epoxy resin is dielectric. The electrical resistivity data showed a percolation threshold between 0.5 and 2 wt.% CNTs loading. The temperature coefficient of electrical resistivity of the samples containing 2 wt.% in the temperature range from 20 to 60°C was 11.5·10-3 K-1. These results suggested that the conductivity of the CNTs-epoxy composites is improved, without any need for chemical functionalization of the nanotubes.

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Available abstract

Abstract Multi-walled carbon nanotubes (CNTs) were used to reduce the electrical resistivity (i.e., increase the conductivity) of industrial epoxy. Samples loaded with 6 wt.% CNTs showed a 9-fold increase in the conductivity. The starting epoxy resin is dielectric. The electrical resistivity data showed a percolation threshold between 0.5 and 2 wt.% CNTs loading. The temperature coefficient of electrical resistivity of the samples containing 2 wt.% in the temperature range from 20 to 60°C was 11.5·10-3 K-1. These results suggested that the conductivity of the CNTs-epoxy composites is improved, without any need for chemical functionalization of the nanotubes.

Key concepts: Carbon nanotube, Epoxy, Electrical resistivity and conductivity, Materials science, Nanocomposite, Composite material, Percolation threshold, Conductivity

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