▎ 摘　　要

NOVELTY - Preparation of hydroxy-modified anti-explosive material prepolymer involves mixing nanocarbon raw material and mixed acid, washing, adding aniline and ammonium persulfate, filtering and drying to obtain composite material of the target product hydroxy-modified nanocarbon and polyaniline in a doped state, adding composite material of hydroxy-modified nanocarbon and primary doped polyaniline, N,N-dimethylformamide, acrylic acid and azobisisobutyronitrile, washing and baking to obtain a composite material of the target product carboxy modified nanocarbon and secondary doped polyaniline, heating the polyether diol or polyester diol, dehydrating, cooling, adding polyisocyanate, measuring the isocyanate value and filtering to obtain isocyanate-terminated semi-prepolymer, mixing the prepared isocyanate-terminated semi-prepolymer and functionalized hydroxy-modified nanocarbon and composite material of secondary doped polyaniline, measuring isocyanate value, discharging and filtering. USE - Preparation of hydroxy-modified anti-explosive material prepolymer. ADVANTAGE - The method prevents the defect of poor low-temperature flexibility of the material caused by increasing the content of the hard segment in the resin system to reinforce the material, improves the resistance to gas explosion impact of petrochemical enterprise buildings, and effectively reduces the explosion impact damage of petrochemical enterprise buildings. DETAILED DESCRIPTION - Preparation of hydroxy-modified anti-explosive material prepolymer involves (i) mixing nanocarbon raw material and mixed acid at a mass percentage of 0.1:100, stirring for 6-8 hours at 60 degrees C after uniformly dispersed by ultrasound, washing with deionized water to pH of 1, adding aniline and ammonium persulfate in a molar ratio of 0.8:1, stirring for 2 hours at room temperature, leaving the mixture still for 12 hours, washing with deionized water several times and filtering with suction until the filtrate is neutral, and drying the product at 80 degrees C to obtain composite material of the target product hydroxy-modified nanocarbon and polyaniline in a doped state, (ii) filling the dry flask with nitrogen, adding 0.1 pt. wt. composite material of hydroxy-modified nanocarbon and primary doped polyaniline into the flask, vacuuming and filling with nitrogen again, adding 80-100 pts. wt. N,N-dimethylformamide and ultrasonically dispersing for 2 hours, adding 1 pt. wt. acrylic acid and 1 pt. wt. azobisisobutyronitrile, stirring in 60 degrees C constant temperature water bath for 5 hours, washing with deionized water several times and filtering until neutral, and washing with acetone several times and filtering under vacuum, placing in an oven at 80 degrees C and baking to constant weight to obtain a composite material of the target product carboxy modified nanocarbon and secondary doped polyaniline, (iii) stirring and heating the polyether diol or polyester diol to 100-130 degrees C in an inert environment, and dehydrating under vacuum of (-0.1) MPa for 2-3 hours, releasing the vacuum, cooling to less than 60 degrees C, adding polyisocyanate, and reacting at 80-90 degrees C for 2-4 hours, measuring the isocyanate value and discharging the material and filtering to obtain isocyanate-terminated semi-prepolymer, (iv) mixing the prepared isocyanate-terminated semi-prepolymer and functionalized hydroxy-modified nanocarbon and a composite material of secondary doped polyaniline with each other in an inert environment, ultrasonically dispersing at 50-60 degrees C for 24 hours, measuring isocyanate value, discharging the material and filtering.