New energy power battery protective film and preparation process thereof

The invention belongs to the technical field of membrane materials, and particularly relates to a new energy power battery protective membrane and a preparation process thereof. The technical key points are as follows: the protective film comprises an acrylic pressure-sensitive adhesive layer and a protective film base material layer; the preparation process comprises the following operation steps: S1, preparing the acrylic pressure-sensitive adhesive; s2, coating the protective film base material layer with an acrylic pressure-sensitive adhesive; s3, drying to completely cure the acrylic pressure-sensitive adhesive to obtain a protective film; s4, winding the protective film on the winding core; wherein before the acrylic pressure-sensitive adhesive in the step S2 is coated on the protective film base material layer, the acrylic pressure-sensitive adhesive has a certain curing degree. The protective film provided by the invention has a simple structure, only one protective film substrate layer and one acryli