Modeling of an effect of uniaxial deformation on electrical conductance of polypropylene-based composites filled with agglomerated nanoparticles

Oleg V. Lebedev, A. Trofimov, Sergey G. Abaimov, Alexander N. Ozerin

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    In this work electrically conductive polypropylene-based composites filled with multi-walled carbon nanotubes (MWCNTs) and particles of carbon black (CB) were studied. The composites were manufactured using melt mixing of the mechanical mixture of the filler powder and polymer pellets. The composites electrical conductance was measured while subjected to uniaxial deformation. A numerical modeling approach based on Finite Element Method (FEM) was proposed to predict the conductive system transformation as a response to composite material deformation. This approach considers experimentally observed composite structure and deformational behavior of the MWCNTs or clusters of CB particles taking into account highly agglomerated state of the nanoparticles that was obtained in the tested samples. The numerical predictions of correlation between applied deformation and electrical conductance of the composites were compared against the experimental data and it was concluded, that the proposed numerical methods provide satisfactory estimations.

    Original languageEnglish
    Article number103132
    JournalInternational Journal of Engineering Science
    Volume144
    DOIs
    Publication statusPublished - Nov 2019

    Keywords

    • Electrical properties
    • Finite element method
    • Functional composites
    • Nanoparticles
    • Non-destructive testing

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