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Information × Registration Number 0225U000428, (0124U002139) , R & D reports Title The newest carbon-polymer composite materials with improved electromagnetic absorption characteristics popup.stage_title 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 наукRud 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 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 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 popup.authors Vovchenko Liudmyla L. Kirian Inna M. Kvita Oleksandr H. Lakhnik Andrii M. Moiseienko Yurii Yu. Naumenko Antonina Р. Shpylka Denys O. Yakovenko Olena S. popup.nrat_date 2025-01-11 Close