Foldable antibacterial transparent hardening layer, antibacterial flexible cover plate and preparation method

The invention relates to a foldable antibacterial transparent hardening layer, which is a film layer formed by curing UV type antibacterial hardening coating material through ultraviolet irradiation,wherein the UV type antibacterial hardening coating material is prepared from the following components in parts by mass: 15-35 parts of polyurethane acrylate prepolymer, 20-50 parts of an active diluent, 10-30 parts of a diluent, 1-5 parts of a photoinitiator, and 2-15 parts of modified silver-loaded silicon dioxide, wherein the reactive diluent is multifunctional acrylate, the diluent is propylene glycol monoacetate, the polyurethane molecular chain of the polyurethane acrylate prepolymer has flexibility and can provide bending performance of the antibacterial transparent hardening layer, andthe acrylic acid molecular chain segments and acrylate in the polyurethane acrylate prepolymer can be quickly cured under the action of UV. According to the invention, the antibacterial transparent hardening layer can slowly