Thermal Analysis of Cellulose-Containing Textile Materials With Water-Repellent Composition Based on Aminosilane and Chloroparaffin

The influence of a water-repellent composition on the thermal properties of cellulose-containing material has been studied. The main focus is on investigating changes in the thermal behavior of the material caused by the application of a composition based on a mixture of aminosilane and chlorinated paraffin. The use of synchronous thermal analysis, including thermogravimetry (TG), differential thermal analysis (DTA), and differential thermogravimetric analysis (DTG), allows the stages of thermal decomposition of the material to be identified and the influence of the impregnating composition on the stability of the material during heating to be assessed. The results of the experiments show three characteristic temperature ranges with different intensities of mass loss, reflecting the process of moisture evaporation, thermo-oxidative decomposition of cellulose, and the formation of coke residue. The application of a water-repellent composition based on aminosilane and chlorinated paraffin leads to a decrease in mass loss in the early stages of heating, which is associated with the displacement of adsorbed moisture and the formation of spatially cross-linked heat-resistant structures. Chlorinated paraffin additionally acts as a flame retardant, increasing the fire resistance of cellulose-containing materials by forming a protective coke layer, which is confirmed by a shift of temperature peaks towards higher values and an increase in the amount of residue after thermal decomposition.