New halogen-free fire retardant for engineering plastic applications

A comparative study of the fire-retardant efficiency of three commercial aryl phosphates-triphenyl phosphate (TPP), resorcinol bis(diphenyl phosphate) (RDP) and bisphenol A bis(diphenyl phosphate) (BDP)-in PC/ABS blends was carried out. The thermal and hydrolytic stability of the fire-retardant resins, as well as their physical properties, was also studied. The use of RDP and BDP is preferred over TPP because of superior properties, whereas BDP shows better fire-retardant efficiency, hydrolytic stability, and thermal stability than RDP.