| abstract |
The invention relates to a packaging film for flexible solar cells, which sequentially comprises a substrate, a barrier layer, an adhesive layer, an adhesion-promoting layer, and a fluorine-containing polymer layer. A layer of adhesion-promoting layer is arranged between the fluorine-containing polymer layer and the bonding layer, and the adhesion-promoting layer is mainly composed of organosilicon compound A containing ultraviolet absorbing groups and organosilicon-modified acrylic polymer B, so The weight ratio of component A to component B is 1:99-50:50, and the obtained packaging film for flexible solar cells has excellent gas barrier properties, moisture and heat aging resistance, thermal shock resistance, and ultraviolet radiation resistance. |