▎ 摘　　要

NOVELTY - Radiation-resistant impact resistant polycarbonate sheet comprises 120-130 pts. wt. polycarbonate, 10-12 pts. wt. graphene nano-fibers, 3-5 pts. wt. 1,4-cyclohexane dicarboxylic acid dialkyl ester, 10-14 pts. wt. butylene terephthalate, 8-10 pts. wt. tetrafluoroethylene-hexafluoropropylene copolymer, 5-7 pts. wt. dihydroxyaluminum stearate, 10-12 pts. wt. acrylonitrile-styrene-acrylic acid ester copolymer, 6-8 pts. wt. oxidized paraffin wax, 5-7 pts. wt. triisodecyl trimellitate, 6-8 pts. wt. villus powder, 2-4 pts. wt. dipentaerythritol hexaacrylate and 3-5 pts. wt. lead sulfide. USE - Radiation-resistant impact resistant polycarbonate sheet for protecting window. ADVANTAGE - The radiation-resistant impact resistant polycarbonate sheet is abrasion resistant, and has high toughness, high chemical stability and high impact strength. DETAILED DESCRIPTION - Radiation-resistant impact resistant polycarbonate sheet comprises 120-130 pts. wt. polycarbonate, 10-12 pts. wt. graphene nano-fibers, 3-5 pts. wt. 1,4-cyclohexane dicarboxylic acid dialkyl ester, 10-14 pts. wt. butylene terephthalate, 8-10 pts. wt. tetrafluoroethylene-hexafluoropropylene copolymer, 5-7 pts. wt. dihydroxyaluminum stearate, 10-12 pts. wt. acrylonitrile-styrene-acrylic acid ester copolymer, 6-8 pts. wt. oxidized paraffin wax, 5-7 pts. wt. triisodecyl trimellitate, 6-8 pts. wt. villus powder, 2-4 pts. wt. dipentaerythritol hexaacrylate, 3-5 pts. wt. lead sulfide, 4-6 pts. wt. lanthanum oxalate, 6-7 pts. wt. magnesia whisker, 3-4 pts. wt. triethylene diamine, 16-20 pts. wt. nano-barium carbonate, 6-8 pts. wt. aramid short fibers, 7-9 pts. wt. silicon carbide chip and 5-8 pts. wt. lead stearate. An INDEPENDENT CLAIM is included for a method for preparing radiation-resistant impact resistant polycarbonate sheet, which involves: (A) mixing polycarbonate and graphene nano-fibers at 110-120 degrees C for 2-3 hours; (B) mixing 1,4-cyclohexane dicarboxylic acid dialkyl ester, villus powder and magnesia whisker in high speed mixer and then incubating at 50-60?OC; (C) mixing butylene terephthalate, tetrafluoroethylene-hexafluoropropylene copolymer, dihydroxyaluminum stearate, acrylonitrile-styrene-acrylate copolymer, oxidized paraffin wax and triisodecyl trimellitate and adding in open mill; (D) boiling mixture at 90-100 degrees C for 5-8 minutes; (E) mixing obtained mixture and cooling to less than or equal to 50 degrees C for 8-10 minutes; (F) mixing with triethylenediamine, barium carbonate, aramid short fiber, silicon carbide and lead stearate; (G) adding mixture to mixing machine and extruding mixture in twin-screw extruder; and (H) cooling to obtain the polycarbonate sheet, where temperature of the extruder is 270-285 degrees C, rotational speed of screw is 40-50 revolutions per minute and pressure is 12-14MPa.