Syvolozhskyi O. Electrodynamic characteristics of polymer composites with a hybrid filler

Українська версія

Thesis for the degree of Doctor of Philosophy (PhD)

State registration number

0823U101512

Applicant for

Specialization

  • 104 - Фізика та астрономія

11-12-2023

Specialized Academic Board

2731

Taras Shevchenko National University of Kyiv

Essay

At the dissertation research, the study of segregated polymer composites based on ultrahigh molecular weight polyethylene with a hybrid filler - graphite nanoparticles decorated with Ni80Fe20 and Fe3O4 nanoparticles is presented. The influence of the type and content of carbon filler and carbon filler modified with magnetic particles in the composite on the features of percolation cluster formation in a material with a segregated structure was studied. The use of a hybrid filler in absorbent composite materials of the polymer/nanocarbon type (graphite nanoplatelets decorated with Ni80Fe20 and Fe3O4 nanoparticles) allows to effectively increase the absorption coefficient of microwave radiation due to the effective complementarity of dielectric and magnetic losses. By varying the type and morphology, the content of fillers in the polymer matrix of segregated composites, materials with specified absorption characteristics are developed: the position, width and depth of the absorption band of electromagnetic radiation (EMB) in the frequency range of 26-60 GHz. The work discusses the issues of reducing the percolation threshold of polymer composites due to segregation, which are relevant for modern science, as well as the issue of achieving the given electrodynamic parameters, especially with the help of easy, economical and effective processing techniques. This is important for the production of modern materials for electronics and may open new opportunities for the practical application of composites with graphene materials.

Research papers

The Structural Studies of Phase Transitions in the Graphite Intercalation Compounds with Iodine Chloride and Bromine, I.V. Ovsiienko, T.A. Len, O.I. Prokopov, M.O. Borovoy, L.Yu. Matzui, O.A. Syvolozhskyi, Journal of Nanoand Electronic Physics, Volume 11, No 4, 04002(6pp) (2019). https://doi.org/10.21272/jnep.11(4).04002

Infrared spectroscopy of ultraviolet irradiated carbon nanotubes, I. Ovsiienko, T. Len, L. Matzui,O. Syvolozhskyi, D. Shpylka, D. Naumova, Ukrainian Journal of Physiscs, Volume 65, № 4, 336-341, (2020)https://doi.org/10.15407/ujpe65.4.336

Effect of magnetic fillers and their orientation on the electrodynamic properties of BaFe12-xGaxO19 (x=0.1-1.2)–epoxy composites with carbon nanotubes within GHz range O.S. Yakovenko, L.Yu. Matzui, L.L. Vovchenko, V.V. Oliynyk, A.V. Trukhanov, S.V. Trukhanov, M.O. Borovoy, P.O. Tesel’ko, V.L. Launets, O.A. Syvolozhskyi, K.A. Astapovich (2020) https://doi.org/10.1007/s13204-020-01477-w

Percolation characteristics of multi-polymer composites with different ratios of nanocarbon fillers , Yu. S. Perets,O. A. Lazarenko, O. A. Sivoloshsky, L. L. Vovchenko &L. Yu. Matzui (2020) https://doi.org/10.1080/15421406.2020.1732544

Graphite Nanoplatelets Modified with Bimetallic Ni–Fe Particles for Catalysis Purposes, A. G. Dyachenko, O. V. Ishchenko, L. Yu. Matzui, V. E. Diyuk, A. V. Vakalyuk, A. V. Yatsymyrskyi, O. A. Syvolozhskyi, O. S. Yakovenko, and O. V. Mischanchuk, Metallofiz. Noveishie Tekhnol., 42, No. 8: 1055— 1063, (2020) https://doi.org/10.15407/mfint.42.08.1055

Electric properties of Ni-C and Co-C core–shell nanoparticles in polymer matrix O. S. Yakovenko, L.Yu. Matzui, L. L. Vovchenko, V. M. Bogatyrov, M. V. Galaburda, A. V. Bodnaruk, V. M. Kalita, O. A. Syvolozhskyi, V.V. Vilchinskyi, Molecular Crystals and Liquid Crystals, 718:1, 132-141, (2021) https://doi.org/10.1080/15421406.2020.1861530

Electrical and electromagnetic interference shielding properties of GNP-NiFe hybrid composite with segregate structure of conductive networks, L. Yu. Matzui, O. A. Syvolozhskyi, L. L. Vovchenko, O. S. Yakovenko, O. A. Lazarenko, T. A. Len, O. V. Ischenko, A. G. Dyachenko, A. V. Vakaliuk, V. V. Oliynyk, and V. V. Zagorodnii, Journal of Applied Physics 131, 055110 (2022) https://doi.org/10.1063/5.0071157

Epoxy composites filled with graphite nanoplatelets modified by FeNi nanoparticles: Structure and microwave properties, O. S. Yakovenko, L. Yu. Matzui, O. A. Syvolozhskyi, L. L. Vovchenko, O. A. Lazarenko, O. V. Ischenko, A. G.Dyachenko, A. V. Vakaliuk, V. V. Oliynyk, V. V. Zagorodnii, A. V. Bodnaruk, V. M. Kalita, M. O. Borovoy, Materials Science and Engineering: B, Volume 283, 115776, ISSN 0921-5107, (2022) https://doi.org/10.1016/j.mseb.2022.115776

Electrical and shielding properties of epoxy composites with Ni–C and Co–C core-shell nanoparticles, L.L. Vovchenko, L.Yu Matzui, O.S. Yakovenko, O.V. Lozitsky, T.A. Len, V.V. Oliynyk, M.V. Galaburda, M.O. Borovoy, O.A. Syvolozhskyi, Physica E: Low-dimensional Systems and Nanostructures, Volume 144, 115463, ISSN 1386-9477, (2022) https://doi.org/10.1016/j.physe.2022.115463

Structure and magnetic properties of MWCNTs decorated by NiFe, CoFe, NiCo nanoparticles / L.Yu. Matzui, L.L. Vovchenko, O.A. Syvolozhskyi, O.S. Yakovenko, M.O. Borovoy, O.O. Gomon, A.G. Dyachenko, O.V. Ischenko, A.V. Vakaliuk, A.V. Bodnaruk & V.M. Kalita, Molecular Crystals and Liquid Crystals, (2022) https://doi.org/10.1080/15421406.2022.2091275

Magnetoresistance of Graphite Nanoplatelets Simultaniously Modified with Nickel and Iron. D. Shpylka, I. Ovsiienko, T. Len, O. Syvolozhskyi, L. Matzui, I. Mirzoiev, T. Tsaregradskaya, G. Saenko. Proceedings of the 2022 IEEE 12th International Conference "Nanomaterials: Applications and Properties", NAP 2022, 2022, Krakow, 11 September 2022, through 16 September 2022, Code 184251. https://doi.org/10.1109/NAP55339.2022.9934152

Microwave Properties of GNP-Polymer Composites with a Segregated Conductive Network O.A. Syvolozhskyi, O.A. Lazarenko, L.Yu. Matzui, et al., J. Nano- Electron. Phys. 14 No 5, 05002 (2022) https://doi.org/10.21272/jnep.14(5).05002 1

Magnetoresistance of graphite nanoplatelets with different structure. I. Ovsiienko, T. A. Len, O. A. Syvolozhskyi, L. Yu. Matzui, I. G. Mirzoiev, V. V. Andrievskii, E. Yu. Beliayev; Low Temperature Physics, 47 (10): 928–937. (2021) https://doi.org/10.1063/10.0006066

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