Acid and alkali resistant UV (ultraviolet) photoinduced peelable fixing glue for PET (polyethylene terephthalate) base film and preparation method of UV photoinduced peelable fixing glue

The invention relates to the technical field of photocuring adhesives, in particular to the field of IPCC09J7, and more particularly relates to an acid and alkali resistant UV photoinduced peelable fixing adhesive for a PET (polyethylene terephthalate) base film and a preparation method of the acid and alkali resistant UV photoinduced peelable fixing adhesive. The UV viscosity-reducing glue comprises a component A and a component B. The component A comprises the following raw materials in percentage by weight: 40-60 wt% of an acrylate polymer, 40-60 wt% of a urethane acrylate oligomer and 1-5 wt% of a photoinitiator. The component B is prepared from the following raw materials in percentage by weight: 20 to 40 percent of isocyanate oligomer and 60 to 80 percent of solvent. When the mass ratio of the acrylate polymer to the urethane acrylate oligomer is 1: (0.7-1.3), the acid and alkali resistance of the UV viscosity-reducing adhesive is effectively improved, the acrylate oligomer with a hydroxyl functional gr