Aluminum plastic film with low surface friction coefficient and preparation method thereof

The invention discloses an aluminum plastic film with a low surface friction coefficient and a preparation method thereof. The aluminum plastic film comprises a polyolefin film layer, a first adhesive layer, an aluminum foil layer, a second adhesive layer, a polyamide film layer, a third adhesive layer and a polyester film layer which are sequentially compounded from inside to outside. Firstly, the concave-convex surface is manufactured through a physical method, the contact surface area of the aluminum-plastic film and a mold in the shell punching process is reduced, and the friction coefficient of the aluminum-plastic film is reduced; and secondly, the friction coefficient is reduced by a physical method and can be permanently kept, so that the problem that the slipping agent added in the film preparation process and the coating process is easy to lose efficacy is solved. 本发明公开了一种表面摩擦系数低的铝塑膜及其制备方法，包括由内至外依次复合的聚烯烃薄膜层、第一胶黏剂层、铝箔层、第二胶黏剂层、聚酰胺薄膜层、第三胶黏剂层和聚酯薄膜层。本发明首先通过物理方法制得凹凸表面，降低铝塑膜在冲壳过程中与模具接触表面面积，减小其摩擦系数；其次通过物理方法