A multilayer film can comprise: a plurality of layers, preferably 4 layers to 128 layers, comprising: a polymer A layer comprising a polycarbonate copolymer and a polymer B layer comprising a semi-crystalline polyester; wherein a differential solubility parameter (ΔδAB) of polymer A towards polymer B (ΔδAB) is greater than or equal to 2.6 MPa1/2; and an interdiffusion region between each polymer A and polymer B. The multilayer film has a dynamic flexure of greater than or equal to 200,000 cycles, as determine by bending 180° on a 10 mm radius cylinder at a rate of 1 hertz. The multilayer film has a total thickness of 40 μm to 70 μm, a transmission at 360 nm to 750 nm of greater than or equal to 89% and a haze of less than or equal to 1%.
多层薄膜可包括:多层,优选 4 层至 128 层,包括:由聚
碳酸酯共聚物组成的聚合物 A 层和由半结晶聚酯组成的聚合物 B 层;其中聚合物 A 对聚合物 B 的溶解度差参数(ΔδAB)大于或等于 2.多层膜的动态弯曲度大于或等于 200,000 次,这是在半径为 10 毫米的圆柱体上以 1 赫兹的速率弯曲 180° 而得出的。多层膜的总厚度为 40 μm 至 70 μm,360 纳米至 750 纳米的透光率大于或等于 89%,雾度小于或等于 1%。