SELF-REPAIRING TPU PROTECTIVE FILM FOR 3D CURVED SCREEN AND PREPARATION METHOD THEREFOR

摘要

A self-repairing TPU protective film for a 3D curved screen, comprising a release film A, an optical-grade self-repairing coating layer, an optical-grade hard TPU resin film layer, an optical-grade high-viscosity acrylic pressure-sensitive adhesive layer, and a release film B attached from top to bottom. The optical-grade self-repairing coating layer is formed by coating an optical-grade self-repairing coating, and the composition of the optical-grade self-repairing coating comprises 100 parts by weight of a self-repairing resin, 60 to 150 parts by weight of a first solvent, 1 to 10 parts by weight of a slip assistant, and 30 to 100 parts by weight of a first curing agent. The self-repairing TPU protective film for a 3D curved screen has good conformability to a curved screen, has no warping, has a smooth surface, and is foldable and scratch resistant.