Preparation method and application of metro leaking stoppage adhesive composition

The invention discloses a preparation method and application of a metro leaking stoppage adhesive composition, and belongs to the technical field of organic polymer materials and products. The invention discloses a two-component metro leaking stoppage adhesive composition, which is characterized in that a component A is an epoxy and polyurethane mixed system, and a component B is a composite epoxy curing agent. On one hand, an environment-friendly CO2-based raw material is adopted to replace a non-renewable petroleum-based raw material, a method for synthesizing a polyurethane prepolymer is adopted to synthesize a reactive additive-amino-terminated polyurethane, and the additive contains a carbamate group and a ureido group, so that a cross-linked network of epoxy resin can be improved, and the epoxy resin can be reinforced and toughened; and meanwhile, high light transmission of the epoxy resin is ensured. On the other hand, the composite epoxy curing agent is adopted, so that the bonding capacity of the plu