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Information × Registration Number 0224U000711, 0123U102257 , R & D reports Title Creation of carbon nanocomposites with improved thermophysical characteristics popup.stage_title Head Vinnikov Mykola A., Кандидат фізико-математичних наук Registration Date 11-01-2024 Organization B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine popup.description2 This work was devoted to the experimental study of the temperature dependence of heat capacity and thermal conductivity of acrylonitrile-butadiene-styrene (ABS) polymer and its composite with thermally reduced graphene oxide (TRGO), as well as an epoxy resin composite with an admixture, with the aim of developing carbon nanocomposites with improved thermophysical characteristics - high thermal conductivity and controlled heat capacity. The synthesis of graphene-polymer matrix composites based on ABS thermoplastic polymer with TRGO admixture concentration of 0.5% by weight, as well as epoxy resin with reduced graphene oxide admixture concentration of 10% by weight, was performed. A significant effect of the TRGO admixture on the heat capacity of ABS-TRGO nanocomposites was revealed. The addition of 0.5% TRGO changed the final heat capacity of the composite. It was found that the addition of 0.5% by weight of TRGO at low temperatures significantly increases the heat capacity of the composite compared to the original ABS. A significant effect of TRGO admixture on thermal conductivity of ABS-TRGO nanocomposites and epoxy resin with TRGO admixture was revealed. The addition of TRGO increased the thermal conductivity of the indicated polymers by about 1.5 times in the entire temperature range. It is shown, that even a small (0.5% by weight) addition of TRGO admixture to the composition of polymers significantly affects their heat capacity and thermal conductivity. Increasing the TRGO impurity concentration to 10% by mass did not significantly increase the thermal conductivity of the composite compared to the addition of 0.5% by mass. Thus: i) the synthesis of graphene-polymer matrix composites with different concentrations of reduced graphene oxide admixture was performed. ii) the influence of the composition, structure and number of functional groups of graphene nanocomposites on the thermophysical characteristics of the composites was established. Product Description popup.authors popup.nrat_date 2024-01-11 Close