▎ 摘　　要

NOVELTY - Acidified carbon nanotubes are added to colloidal graphene oxide to obtain black colloidal dispersion. Metal salt and aluminum salt are successively added to the obtained colloidal dispersion, and refluxed. The resulting suspension is cooled and washed with distilled water and ethanol, and dried to obtain graphene/carbon nanotube/layered double hydroxide composite material. The obtained composite is mixed with polystyrene resin, stirred and extruded with a twin screw extruder to obtain flame retardant polystyrene nano composite material. USE - Manufacture of flame retardant polystyrene nano composite material (claimed). ADVANTAGE - The flame retardant polystyrene nano composite material having excellent flame retardant property and mechanical property is manufactured.