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Depending on the type of nanoparticles introduced into polymeric materials in low concentrations, nanocomposites acquire special chemical, electrophysical, thermal and tribological properties, which opens up wide possibilities for their use in electronic engineering technology. However, with an increase in the volume fraction of the dispersed phase above a certain value, sharp changes in the physicochemical properties of the material occur. The observed phenomenon can be explained by the rearrangement of the nanocomposite structure due to the processes of agglomeration of dispersed phase particles, or of a nanocomposite structure formation in the form of a continuous network. In this work, a theoretical assessment is performed of the critical value of the dispersed phase volume fraction in the nanocomposite, at which the specified structural rearrangement begins, depending on the size of the particles of this phase. The thicknesses of monomolecular layers of various polymer matrices are estimated using calculation methods based on ideas about the possible shapes of polymer molecules on the surface of the solid phase. Based on the calculation results, graphs of the dependence of the critical value of the volume fraction of the dispersed phase of the nanocomposite on the size of its particles for matrices based on polyimide and epoxy resins were constructed. It has been demonstrated that calculated dependence for the thickness of oligomer layer around dispersed phase particle equal to 200 nm found good agreement with experimental record.
  • Key words: nanocomposite, polymer, redistribution layers, microassembly, internal assembly of crystals
  • Published in: ELECTRONICS MATERIALS
  • Bibliography link: Borisov А. G., Vertyanov D. V., Ilyasheva E. V., Osipenkova N. G., Timoshenkov S. P. Features of the properties of polymer composites based on a nanosized dispersed phase. Izv. vuzov. Elektronika = Proc. Univ. Electronics. 2025;30(5):566–574. (In Russ.). https://doi.org/10.24151/1561-5405-2025-30-5-566-574.
  • Financial source: the work has been supported by the Russian Science Foundation (project 23-29-00964).
Alexander G. Borisov
National Research University of Electronic Technology (Russia, 124498, Moscow, Zelenograd, Shokin sq., 1)
Denis V. Vertyanov
National Research University of Electronic Technology (Russia, 124498, Moscow, Zelenograd, Shokin sq., 1)
Ekaterina V. Ilyasheva
National Research University of Electronic Technology (Russia, 124498, Moscow, Zelenograd, Shokin sq., 1)
Natalia G. Osipenkova
National Research University of Electronic Technology (Russia, 124498, Moscow, Zelenograd, Shokin sq., 1)
Sergey P. Timoshenkov
National Research University of Electronic Technology (Russia, 124498, Moscow, Zelenograd, Shokin sq., 1)

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