Welding strip carrier film, preparation method therefore, and application thereof

Abstract

A welding strip carrier film. The raw materials for the welding strip carrier film comprise, in percent by mass, 50-99% of a matrix resin, 0-50% of a tackifying resin, and 0-5% of an additive. The matrix resin is one or more of a polyolefin resin and an elastomer thereof, a polyester resin and an elastomer thereof, polyvinyl butyral, an ethylene-vinyl acetate copolymer, an ethylene-acrylic acid copolymer, an ionic polymer, polyamide, fluororesin, and modifiers thereof. The tackifying resin is one or more of rosin, hydrogenated rosin, a petroleum resin, a hydrogenated petroleum resin, a phenolic resin, and a terpene resin. The carrier film can be manufactured into a single-layer structure, and thus can have a support function while ensuring its bonding performance to a welding strip and a cell; and the carrier film would not be penetrated by a welding strip during lamination.