▎ 摘　　要

NOVELTY - Polymethyl methacrylate (PMMA) waterproof coating comprises component A, component B and component C. The component A includes methyl methacrylate prepolymer resin, methyl methacrylate, amyl acrylate, terpene resin, epoxy resin, polypropylene glycol dimethacrylate, propylene carbonate, polymerization inhibitor, hollow mesoporous silica nanospheres, montmorillonite, graphene, pigments, N,N-dimethyl-p-toluidine, N,N-diethylaniline, cobalt isooctanoate, ultraviolet absorber, and anti-settling auxiliary agent. The component B includes methyl methacrylate prepolymer resin, methyl methacrylate, amyl acrylate, methyl acrylate-perfluoroalkyl ethyl acrylate diblock copolymer, polyethylene glycol dimethacrylate, layered aluminum phosphate, hydrotalcite, multi-walled carbon nanotubes, anti-precipitation additives, and pigments. The component C includes curing agent. USE - The coating is useful for concrete bridges of intercity high-speed railway and urban light rail. DETAILED DESCRIPTION - Polymethyl methacrylate (PMMA) waterproof coating comprises component A, component B and component C in the mass ratio of 95-120:70-85:3-5.8. The component A includes 20-55 pts. wt. methyl methacrylate prepolymer resin, 10-15 pts. wt. methyl methacrylate, 3-13 pts. wt. amyl acrylate, 2-9 pts. wt. terpene resin, 3-11 pts. wt. epoxy resin, 3-11 pts. wt. polypropylene glycol dimethacrylate, 2-5 pts. wt. propylene carbonate, 0.05-0.3 pts. wt. polymerization inhibitor, 2-9 pts. wt. hollow mesoporous silica nanospheres, 4-13 pts. wt. montmorillonite, 5-18 pts. wt. graphene, 2-4 pts. wt. pigments, 0.1-0.55 pts. wt. N,N-dimethyl-p-toluidine, 0.05-0.38 pts. wt. N,N-diethylaniline, 0.05-0.38 pts. wt. cobalt isooctanoate, 0.1-0.7 pts. wt. ultraviolet absorber, and 0.1-1 pts. wt. anti-settling auxiliary agent. The component B includes 20-55 pts. wt. methyl methacrylate prepolymer resin, 10-15 pts. wt. methyl methacrylate, 3-13 pts. wt. amyl acrylate, 1-8 pts. wt. methyl acrylate-perfluoroalkyl ethyl acrylate diblock copolymer, 5-13 pts. wt. polyethylene glycol dimethacrylate, 3-11 pts. wt. layered aluminum phosphate, 5-9 pts. wt. hydrotalcite, 1-6 pts. wt. multi-walled carbon nanotubes, 0.1-1 pts. wt. anti-precipitation additives, and 2-4 pts. wt. pigments. The component C includes curing agent.