preparation of phosphorous flame retardant polystyrene nanocomposites with falmmability and thermal stability properties

Polystyrene nanocomposites with organomodified montmorillonite (cloisite 15A) and phosphorus flame retardant (triphenyl phosphate) were prepared by melt extrusion in a twin screw extruder. The exfoliation and dispersion of particles were evaluated by X-ray diffraction and energy dispersive X-ray analysis. Thermal stability of flame retardant samples enhanced in presence of clay nanoparticles and antioxidant in thermogravimetric analysis. Flammability properties were investigated by limiting oxygen index and UL-94 burning test. The results showed that the good performance in phosphorus composite containing 5% wt. of triphenyl phosphate upon the high values in LOI test.

کلیدواژه ها:

polystyrene-nanocomposites-clay-triphenyl phosphate-flame retardant