INVESTIGATION OF THE THERMOPHYSICAL AND FIRE-RESISTANT PROPERTIES OF EPOXY POLYMER COMPOSITE COATINGS BASED ON BINARY FILLERS
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This article investigates the thermophysical, thermomechanical, and fire-resistant properties of epoxy polymer composite coatings modified with binary fillers, mineral components, and intumescent flame-retardant additives. A heat-protective composite coating based on VEP-3 epoxy resin was selected as the research object. The thermal stability of the material was evaluated using differential thermogravimetric analysis, mass-loss kinetics, thermomechanical deformation, oxygen index, and smoke generation coefficient. The results showed that the VEP-3 sample exhibited an endothermic effect at 283.57 °C, while the total mass loss within the temperature range of 21.07–801 °C reached 48.285%. The optimal incorporation of flame retardants, vermiculite, carbon nanotubes, and intumescent additives increased the oxygen index from 17–19% to 35–38% and significantly reduced smoke generation. The obtained results confirm the potential of intumescent epoxy composite coatings as effective thermal and fire-protective materials.
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