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Information × Registration Number 0225U000298, (0124U003761) , R & D reports Title Scientific principles of creating percolation polymer metamaterials with negative dielectric and magnetic permeabilities popup.stage_title Розробка нових та удосконалення існуючих методик одержання нових хімічно модифікованих магнітними металами та їх комплексами нанокарбонових структур Head Liudmyla Y. Matzui, Доктор фізико-математичних наук Registration Date 08-01-2025 Organization Taras Shevchenko National University of Kyiv popup.description1 Establishing the regularities of creating a new type of electromagnetic functional materials - percolation polymer metamaterials based on hybrid fillers from a mixture of carbon nano_, meso_, and micron particles, their structures modified by magnetic metals, magneto-dielectric and magnetic particles, and establishing the mechanisms of formation of negative dielectric and magnetic permeability popup.description2 Solving the problem of obtaining materials with simultaneously negative electrodynamic parameters and high shielding characteristics in a wide range of EM waves is relevant today and belongs to the fundamental aspects of the development of modern science. It is possible only as a result of a comprehensive study of the processes and phenomena that arise during the interaction of EMW with percolation polymer metacomposites (PPM). The aim of the project is to establish the regularities of creating a new type of electromagnetic functional PPM based on hybrid fillers (HF) from a mixture of carbon nanoparticles (CN), their structures modified by magnetic metals, magneto-dielectric particles and to establish the mechanisms of formation of negative dielectric constants (NDC) and magnetic permeability (MP) in them. Our approach to creating PPM consists in: i) using HF in a polymer matrix based on a mixture of FN of different morphology, their structures modified by magnetic metals, magneto-dielectric and magnetic particles; ii) in creating PPM with a segregated structure of a conductive cluster of fillers; iii) in using magnetic nanorods or carbon fibers as a ferromagnetic component of GN, with their specified location in the composite. The main objectives of the project are 1) development and improvement of methods for the synthesis of new GN chemically modified with magnetic metals based on graphene, carbon nanotubes, nanospheres and fibers; 2) development of the physicochemical foundations of the processes of forming hybrid PPM with the simultaneous use of different types of GN; 3) study of the electrical, magnetic microwave characteristics of the created PPM depending on their structural, morphological and phase composition, the nature of the location of GN in the polymer matrix; 4) establishment of mechanisms that determine the formation of VDP and VDM in PPM with GN; 5) development of a scientific concept for creating PPM with VDP and VDM based on carbon-containing GN  Product Description popup.authors Vovchenko Liudmyla L. Zahorodnyi Volodymyr V. Zaiats Dmytro О. Lisniak Vladyslav V. Iryna V. Ovsienko Perets Yuliia S. Shpilka Denys O. Yakovenko Olena S. popup.nrat_date 2025-01-08 Close