BACKSHEET FOR SOLAR BATTERY AND PREPARATION METHOD THEREOF

摘要

PURPOSE: A backsheet for a solar battery is provided to reduce the manufacturing costs by manufacturing at low temperature. CONSTITUTION: A solar battery backsheet comprises a base material layer, an adhesive layer having a urethane based adhesive, and a fluoride group coating layer including the fluoro vinylidene group polymer. The base material layer is metal substrate or a resin layer of polyester system. The urethane-based adhesive is a polyurethane adhesive including one of diisocyanate, diisocyanate biuret and isocyanurate. The thickness of the bonding layer is 0.1 - 20μm. The degree of crystallinity of the fluoro vinylidene group polymer is 10 - 70%.