Flame retardance of polystyrene modified with a phosphorus-containing inorganic compound

摘要

@@Polystyrene, or so-called poly(l-phenylethene-l,2diyl) in IUPAC, is a commodity plastic manufactured on a very large scale due to its outstanding properties, such as thermal resistance, low density, excellent mechanical durability and convenience of processing and molding. However, its applications are greatly limitied in some areas due to its high flammability and severe melt-dripping during combustion. Due to the high flammability of polystyrenes, including general purpose polystyrene (GPPS), high impact polystyrene (HIPS), expanded polystyrene (EPS) and extruded polystyrene foams (XPS), a lot of work has been done to improve its flame retardance. In the 1960s and 1970s, the introduction of brominated flame retardant solved potential safety problems related to fire hazard of polystyrene.