▎ 摘　　要

NOVELTY - Preparation of thermal insulation material involves placing outer material obtained using graphene composite metal system, intermediate material formed using phenylpropynic acid and polyurea formaldehyde, and inner material formed using polystyrene, polyphenylene sulfide and nano-porous nickel oxide in a mold and hot-pressing. USE - Preparation of thermal insulation material (claimed). ADVANTAGE - The method efficiently provides thermal insulation material having excellent corrosion resistance. DETAILED DESCRIPTION - Preparation of thermal insulation material involves adding graphene oxide into N,N-dimethyl dodecylamine, stirring at 100 degrees C for 1 hour, adding diphenoxyphosphine and strontium titanate, stirring for 0.5 hour, adding hexachloroiridium ammonium,, stirring for 10 minutes, cooling naturally, obtaining graphene composite metal system, dry-milling polyester resin, graphene composite metal system, naphthol phenolic resin, tributyl phosphate and titanium dioxide whisker, adding to extruder, extruding at 190 degrees C, obtaining particles, preparing outer layer material by film making machine, adding fullerene derivative to cyanate ester, reacting at 100 degrees C for 40 minutes, adding dicarboxyphthalimide, reacting, adding tetraglycidyldiaminomethylene, stirring at 110 degrees C for 2 hours, adding phenylpropynic acid and polyurea formaldehyde, continuously stirring for 10 minutes, pouring into a mold, obtaining intermediate layer of natural cooling material, dry-grinding polystyrene, polyphenylene sulfide and nano-porous nickel oxide, adding 3,5-dimethylpyrazole, silicone phenolic resin and polyvinyl alcohol into extruder, extruding at 185 degrees C, obtaining particles, preparing inner layer material by film making machine, placing outer material, intermediate material and inner material in a mold and hot-pressing.