Abstract: Flame retardant properties and thermal stability of polystyrene(PS)/montmorillonite(MMT) nanocomposites, PS/layered double hydroxides(LDH), and PS/graphene(GO) were summarized. By introducing additive and reactive flame retardant agents into PS, the flame retardant and thermal stability of the above three nanocomposites were greatly improved. At the end,research and application perspectives of flame retardant polystyrene/layer inorganic nanocomposites were prospected.

Key words: flame retardant, polystyrene, layer inorganic nano-composites, composites