Performance of Cotton Fabrics Coated with DOPO-HQ and Zr-based Metal-Organic Frameworks When Exposed to Fire

Abstract

The article deals with the study of the performance of cotton fabrics coated with DOPO-HQ and Zr-based Metal-Organic Frameworks when exposed to fire. Cotton fibers are inherently flammable and exhibit low thermal stability, significant efforts have been made to develop additives or coatings that can improve the properties of cotton when exposed to fire and high temperatures FTIR spectroscopy was used to analyze the chemical structure of the cotton fabrics both before and after the coating, while scanning electron microscopy was used to examine the surface morphology of the cotton and its combustion residues. In our experiments, we used flammability tests and thermogravimetric methods to understand the burning behavior of the coated fibers, as well as their thermal stability. The cotton fabrics coated with DOPO- HQ and Zr MOFs exhibited shorter combustion times, had better thermal degradation properties, promoted the creation of heat-insulating layers and exhibited improved smoke suppression behavior. The eco-friendly development of fire protection for cotton fabrics could substantially reduce fire hazards and extend evacuation time.