Research of crack initiation and propagation under loading for providing impact resilience of protective coating

O. O. Sapronov, A. V. Buketov, P. O. Maruschak, S. V. Panin, M. V. Brailo, S. V. Yakushchenko, A. V. Sapronova, O. V. Leshchenko, A. Menou

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Abstract

The analysis of destruction process under the impact loading of developed epoxy composites with different content of carbon nanotubes is carried out. Introduction of nanoparticles into the epoxy binder at the optimal content of q = 0.010 pts·wt. allows 3 times increase of impact resilience relative to the epoxy matrix. The loading value at the moment of material destruction, the value of critical strain and the crack propagation rate in time to the materials destruction on the impact testing machine RKP-300 for high-speed loading are established. By the method of optical and electron microscopy it is established that the uniformity of particles distribution of carbon nanotubes influences the morphology of nanocomposites, and hence the properties of the formed materials.

Original languageEnglish
Pages (from-to)114-120
Number of pages7
JournalFunctional Materials
Volume26
Issue number1
DOIs
Publication statusPublished - 1 Jan 2019

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Keywords

  • Carbon nanotubes
  • Crack propagation
  • Fracture surface
  • Impact resilience

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Sapronov, O. O., Buketov, A. V., Maruschak, P. O., Panin, S. V., Brailo, M. V., Yakushchenko, S. V., Sapronova, A. V., Leshchenko, O. V., & Menou, A. (2019). Research of crack initiation and propagation under loading for providing impact resilience of protective coating. Functional Materials, 26(1), 114-120. https://doi.org/10.15407/FM26.01.114