FLAME RETARDANCY OF COTTON FABRIC: EFFECT OF COATING OF POLYMERIC FILM CONTAINING PHOSPHORUS BY ADMICELLAR POLYMERIZATION

The vinyl phosphonic acid a phosphorus-based monomer has been polymerized on the cotton fabric with the aid of a cationic surfactant and 2, 2/ -azobis(2-methypropionamidine) dihydrochloride (AIBA) an initiator with the aim to improve flame retardancy of fabric for the fire safety. The thermal and burning behaviour of treated fabric are studied using thermogravimetry (TG) and limiting oxygen index flammability test (LOI), respectively. This treatment alters the path of degradation of treated cotton fabric sample (CF-PVPA-3) having 1.2% phosphorus, which increased the carbonaceous residue up to 28.2% at 600°C in an inert atmosphere at the expense of flammable products. The LOI value of 28.5 % of treated cotton fabric indicates the attainment of flame retardant property