Novel debromination method for flame-retardant high impact polystyrene (HIPS-Br) by ammonia treatment
Abstract
Debromination of flame-retardant brominated high impact polystyrene (HIPS-Br) was performed at 450 °C by ammonia treatment. All inorganic and most organic Br compounds were successfully removed and converted to inorganic NH4Br powder, which allows easy bromine recovery. The liquid degradation products are rich in benzene derivatives and can be used as feedstock or fuel.