Registration Number
0226U000710,
(0124U002139)
, R & D reports
Title
The newest carbon-polymer composite materials with improved electromagnetic absorption characteristics
popup.stage_title
Дослідження структурного стану розроблених вуглецьполімерних композитів. Встановлення кореляції між енергочасовими та хімічними параметрами синтезу ВНЧ, їх будовою, електричними, електродинамічними та мікрохвильовими властивостями вуглець-полімерних композитів.
Head
Matsui Liudmyla Yu., Доктор фізико-математичних наук
Rud Oleksandr D., Доктор фізико-математичних наук
Registration Date
14-01-2026
Organization
Department for special training National academy of science of Ukraine at Kiev University
popup.description1
The development of the physical foundations of the creation of carbon-polymer composite materials with controlled electrodynamic characteristics based on the establishment of general patterns in the correlation between the type of carbon filler and the electromagnetic response in order to create effective absorbers of microwave radiation, determining the features of the effect of chemical modification on the surface of carbon nanoparticles on the interphase interaction of the filler polymer.
popup.description2
The morphology and structural state of natural graphite crushed by the method of mechanical activation in vortex mill were investigated. According to the results of microstructural analysis, it was found that individual graphite particles have a characteristic lamellar (scale-like) morphology and are characterized by an irregular shape. The average particle size is approximately 100-200 µm, with a thickness of 2-5 µm. This structure results in a high specific surface area and pronounced anisotropy of electrophysical properties, which is a critical prerequisite for effective interaction with electromagnetic radiation. Polymer composites with the addition of natural graphite were developed and their microwave shielding properties were studied. The microwave permittivity and permeability as well as shielding characteristics such as transition SET, shielding efficiency SET, reflection SER and absorption SEA were investigated in the frequency range 26-40 GHz. It was shown that the increase of graphite content promotes the enhancement of electromagnetic shielding due to both reflection SER and absorption SEA although the electromagnetic reflection index R is much higher compared with absorption index A. It was shown the possibility to manipulate the electrical conductivity, permittivity and permeability of polymer-filled composites by changing the content and spatial distribution of fillers in the composite that is important for the development of high-quality shielding/absorptive materials in the microwave range. Furthermore, microstructural heterogeneity contributes to the formation of gradient or multilayer materials with tunable electrophysical properties, opening new opportunities for engineering composites with adaptive EMR interaction characteristics.
Product Description
popup.authors
Yakovenko Olena S.
Liudmyla L. Vovchenko
Lakhnyk Andrii M.
Antonina Naumenko
Inna M. Kirian
Kvita Oleksandr H.
Shpylka Denys O.
Moiseienko Yurii Yu.
popup.nrat_date
2026-01-14
