Study of the Influence of Carbon Nanomodifiers on Thermal Stability of the Material of the Top of Firefighter's Protective Clothing

This article examines the effect of carbon nanostructures (astralenes) on the thermal stability of a composite based on aramid fibers with a water-repellent impregnation, used as the upper material for firefighter protective clothing. Differential thermogravimetry and differential thermal analysis were used to study the thermolysis of samples with varying nanoparticle contents (0–0,01 wt%). It was found that the introduction of astralenes at a concentration of 0,001 wt% significantly improves the thermal stability of the composite. Further increases in concentration lead to a decrease in the thermal stability of the composite. The mechanism for increasing the thermal stability of the composite by light modification with astralenes involves the creation of a dense carbonized layer on the surface of the material, which limits oxygen access to the inner layers of the material.