▎ 摘　　要

NOVELTY - A modified polystyrene foam thermal insulation material comprises polycarbonate particles, polystyrene foam particles, dioctyl phthalate, copper naphthenate, expanded perlite, limestone, graphene and gelatin. The thermal insulation material is prepared by pulverizing polycarbonate particles, polystyrene foam particles, dioctyl phthalate and graphene, adding mixture (A) to anhydrous ethanol, ultrasonically dispersing, transferring mixture to three-neck flask, stirring adding mixture (B), copper naphthenate, expanded perlite, limestone and gelatin to reaction kettle and reacting. USE - Modified polystyrene foam thermal insulation material (claimed). ADVANTAGE - The modified polystyrene foam thermal insulation material has excellent heat resistance, pressure resistance and impermeability, long service life and low thermal conductivity, and can be prepared in a rapid and simple manner. DETAILED DESCRIPTION - A modified polystyrene foam thermal insulation material comprises 4-12 pts. wt. polycarbonate particles, 15-55 pts. wt. polystyrene foam particles, 1-2 pts. wt. dioctyl phthalate, 2-8 pts. wt. copper naphthenate, 5-15 pts. wt. expanded perlite, 4-10 pts. wt. limestone, 8-22 pts. wt. graphene and 2-8 pts. wt. gelatin. The thermal insulation material is prepared by (a) pulverizing polycarbonate particles, polystyrene foam particles, dioctyl phthalate and graphene using a pulverizer to obtain mixture (A), (b) adding the mixture (A) to anhydrous ethanol, ultrasonically dispersing for 20 minutes, transferring the mixture to a three-neck flask and stirring the mixture in a water bath environment at temperature of 70-105 degrees C and stirring rate of 260-400 rpm for 2-4 hours to obtain mixture (B), and (c) adding the mixture (B), copper naphthenate, expanded perlite, limestone and gelatin to a reaction kettle and reacting at 200-450 degrees C for 4-8 hours to obtain product.