▎ 摘　　要

NOVELTY - Radiation-proof modified material comprises 15-20 pts. wt. lead powder, 80-90 pts. wt. polytetrafluoroethylene, 10-15 pts. wt. carbon fiber, 5-10 pts. wt. steel fiber, 5-10 pts. wt. fluorine rubber powder, 5-10 pts. wt. methacrylic acid, 1-3 pts. wt. graphene oxide, 5-10 pts. wt. silicon dioxide, 15-20 pts. wt. silane coupling agent KH550, 5-10 pts. wt. propylene glycol, 30-40 pts. wt. 95% ethanol, acetic acid, 5-10 pts. wt. polyisocyanate JQ-1, 15-20 pts. wt. dimethylformamide, 10-15 pts. wt. 4-dimethylaminopyridine, 15-20 pts. wt. dicyclohexylcarbodiimide and 90-100 pts. wt. water. USE - Radiation-proof modified material. ADVANTAGE - The radiation-proof modified material has high bonding strength, and is utilized for preparing radiation-resistant shelter and nuclear power plant building. DETAILED DESCRIPTION - Radiation-proof modified material comprises 15-20 pts. wt. lead powder, 80-90 pts. wt. polytetrafluoroethylene, 10-15 pts. wt. carbon fiber, 5-10 pts. wt. steel fiber, 5-10 pts. wt. fluorine rubber powder, 5-10 pts. wt. methacrylic acid, 1-3 pts. wt. graphene oxide, 5-10 pts. wt. silicon dioxide, 15-20 pts. wt. silane coupling agent KH550, 5-10 pts. wt. propylene glycol, 30-40 pts. wt. 95% ethanol, acetic acid, 5-10 pts. wt. polyisocyanate JQ-1, 15-20 pts. wt. dimethylformamide, 10-15 pts. wt. 4-dimethylaminopyridine, 15-20 pts. wt. dicyclohexylcarbodiimide and 90-100 pts. wt. water. The length of carbon fiber is 75-150 mu m, and steel fiber is 50-150 mu m. The particle size of fluorine rubber powder is 80-200 meshes. An INDEPENDENT CLAIM is included for a method for producing radiation-proof modified material, which involves: (A) mixing carbon fiber with 95% ethanol solvent; (B) subjecting obtained mixture ultrasonic dispersion; (C) adjusting pH of the obtained mixture to 4-5 by adding acetic acid; (D) adding obtained mixture with 10-15 parts silane coupling agent KH550 with stirring for 8-15 hours; (E) washing obtained mixture with deionized water, and then drying under vacuum to obtain dried mixture; (F) oxidizing graphene oxide to graphene peroxide in 95% ethanol solvent by glow discharge plasma technology; (G) adding oxidized mixture with dimethylformamide; (H) sonicating obtained mixture for 2-3 hours; (I) adding sonicated mixture with 4-dimethylaminopyridine, dicyclohexylcarbodiimide and dried mixture with stirring for 18-36 hours at room temperature; (J) washing obtained mixture with deionized water; (K) drying washed mixture under vacuum; (L) mixing dried mixture with polyisocyanate JQ-1 with mechanical stirring for 1-3 hours; (M) adding obtained mixture with polytetrafluoroethylene in high-speed mixer; (N) molding and sintering obtained mixture at 360-390 degrees C under air atmosphere to obtain mixture having 150-200mm diameter and 3-4mm thickness; (O) immersing mixture in coating solution for 4-8 minutes; (P) drying obtained mixture in oven at 80-100 degrees C; and (Q) sintering obtained mixture in muffle furnace at 120-200 degrees C for 10-30 minutes to obtain radiation-proof modified material.