Registration Number
0225U000428,
(0124U002139)
, R & D reports
Title
The newest carbon-polymer composite materials with improved electromagnetic absorption characteristics
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Розробка методів та синтез 1D, 2D та 3D НВЧ на основі вітчизняної сировини; Створення полімерних композитів з різним вмістом та характером розподілу 1D, 2D та 3D НВЧ в полімерній матриці.
Head
Matsui Liudmyla Yu., Доктор фізико-математичних наук
Rud Oleksandr D., Доктор фізико-математичних наук
Registration Date
11-01-2025
Organization
Department for special training National academy of science of Ukraine at Kiev University
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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.
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The influence of carbon nanospheres (CNS) on the electromagnetic properties of composite materials was investigated. CNS were produced by high-frequency electrical discharge treatment of propane-butane mixture in the ratio of 0.5:0.5. The structural characteristics of the synthesized materials were investigated through high-resolution electron microscopy and X-ray diffraction analysis. It was revealed that individual particles, measuring 20-40 nm in size, assemble into agglomerates exhibiting a predominantly spherical morphology. Each particle is composed of multilayered, partially closed graphene shells with structural defects. It was found that the synthesized material has graphite-like type of short-range atomic order. It was shown that addition of 10-20 wt.% of CNS into epoxy matrix results in increase of dielectric permittivity and shielding properties of composites in frequency range 26-40 GHz.
Product Description
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Vovchenko Liudmyla L.
Kirian Inna M.
Kvita Oleksandr H.
Lakhnik Andrii M.
Moiseienko Yurii Yu.
Naumenko Antonina Р.
Shpylka Denys O.
Yakovenko Olena S.
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2025-01-11
