| abstract |
A multi-layer protective backsheet for solar modules, (I) any top layer (layer (i)), (Ii) an insulating layer (layer (ii)), (Iii) a back layer (layer (iii)) in this order, There may or may not be one or more sublayers between each layer, The uppermost layer (i), the insulating layer (ii), and the back layer (iii) contain polyolefin as a main component, and the polyolefin is made of polyethene homo- and copolymer (PE) and polypropene homo- and copolymer (PP). Selected, preferably the insulating layer (ii) has a thickness of at least 210 μm or at least 310 μm. A solar module including a backsheet, a method for manufacturing the backsheet, and a method for manufacturing a solar module including the backsheet are also provided. |