A mechanism for fire retardancy realized by a combination of biofillers and ammonium polyphosphate in various polymer systems

Abstract This study focused on realizing fire retardancy for polymer composites by using a cellulosic biofiller and ammonium polyphosphate (APP). The motivation of this was based revealing the mechanism synergetic effect APP determining parameters required achieving V-0 rating in UL94 standard regardless kind system used. As matrix, polypropylene polylactic acid were flammability, burning behavior thermal decomposition investigated through test according to UL-94 standard, cone calorimetric thermogravimetric analysis. result, incorporation high amount cellulose enabled be achieved with only small despite variation optimum loading between matrix polymers. Through analysis, results indicated that decreased dehydration temperature cellulose. Furthermore, promoted generation enough water as nonflammable gas formed char until degradation complete. conditions achieve suggested against incorporating biofillers. validated polyoxymethylene highly flammable polymer.