Evaluation of the flammability and thermal properties of a new flame retardant coating applied on polyester fabric

• Synthesizing a new flame-retardant coating using low cost chemicals.
• Improving the ignition properties of polyester fabric using low cost chemicals.
• Studying the effect of UV/Ozone on the surface of polyester when irradiated for different times.
• Increasing irradiation time will decrease the tensile strength of uncoated samples, while increasing it in the case of coated samples.

The objective of this research was to investigate the effect of non-durable flame retardant (NDFR) coating of samples of polyester fabric untreated and treated with UV/Ozone for different periods. For this purpose, these samples were tested by Fourier transform infrared (FTIR) spectroscopy, thermal analysis tests as thermo-gravimetric analysis (TGA) and differential scanning calorimeter (DSC). The ignition test was applied using limiting oxygen index (LOI), flame chamber (UL/94). Results indicated that both AZ2 (dried at room temperature) and AZ8–12 (dried at 80 °C for 30 min after coating with non-durable fire retardant (NDFR) coating) polyester samples have significantly decreased the rate of burning and increased the limiting oxygen index.