Influence of particle aspect ratio and ability to aggregate on electrical conductivity of fiber-forming polymer composites

Authors

  • Ekaterina S. Tsobkallo Saint-Petersburg State University of Industrial Technologies and Design
  • Olga A. Moskalyuk Saint-Petersburg State University of Industrial Technologies and Design
  • Vladimir E. Yudin Institute of Macromolecular Compounds of Russian Academy of Sciences https://orcid.org/0000-0002-5517-4767
  • Andrey N. Aleshin Ioffe Institute

DOI:

https://doi.org/10.33910/2687-153X-2020-1-3-99-107

Keywords:

polymer composites, carbon particles, fiber-forming, electrical conductivity, percolation threshold, aspect ratio, aggregate

Abstract

Fiber-forming polymer composites filled with carbon nanoparticles of three types (carbon black is a spherical filler; carbon nanofibers and carbon nanotubes are anisotropic nanoparticles) were produced by melt technology. Electrical conductivity of the fiber-forming polymer composites was measured; a function of the filler concentration and the percolation thresholds were determined. It was found that an increase in the aspect ratio of carbon nanoparticles leads to a decrease in the percolation threshold. The correlation between the axial ratio, stiffness, filler concentration and electrical conductivity of the percolation cluster in fiber-forming polymer composites was analysed.

References

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Published

2020-09-21

Issue

Section

Condensed Matter Physics