Non-uniformly distributed co-extrusion adhesive film and photovoltaic module

• Main Authors: QIN YONG, LI MIN, SUN XIAOGUANG
• Format: Patent
• Language: Chinese; English
• Published: 06.01.2023
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; POLISHES; SEMICONDUCTOR DEVICES; USE OF MATERIALS AS ADHESIVES

The utility model relates to the technical field of adhesive films, in particular to a non-uniformly-distributed co-extrusion adhesive film and a photovoltaic module, the non-uniformly-distributed co-extrusion adhesive film comprises an inner film layer and a coating layer, the sum of the thicknesses of the inner film layer and the coating layer is a fixed value, and on the premise that the sum of the thicknesses of the inner film layer and the coating layer is the fixed value, the thickness of the inner film layer is larger than that of the coating layer. And the thickness of the coating layer and the thickness of the inner film layer are complementary. According to the non-uniform distribution co-extrusion adhesive film, in the adhesive film melt extrusion process, the material of the coating layer and the material of the inner film layer are both fluid and can freely flow, and the non-uniform distribution co-extrusion adhesive film can be formed by adjusting a distributor and a flow channel of co-extrusion