Packaging adhesive film composition, packaging adhesive film and photovoltaic module

Abstract

The invention provides a packaging adhesive film composition, a packaging adhesive film and a photovoltaic module. The packaging adhesive film composition is prepared from the following components in percentage by weight: 50 to 90 percent of matrix resin and 10 to 50 percent of functional resin, the peak melting point of the functional resin is 40-160 DEG C higher than the peak melting point of the matrix resin. The packaging adhesive film composition comprises the matrix resin with the low peak melting point and the functional resin with the high peak melting point, the packaging adhesive film prepared from the packaging adhesive film composition has the excellent heat absorption effect, when the packaging adhesive film composition is applied to the photovoltaic module, when the temperature of the photovoltaic module is increased locally, the heat absorption effect is good, and the service life of the packaging adhesive film is prolonged. And the temperature is just in a phase change area of the functional resin with a relatively high peak melting point, so that the packaging adhesive film can quickly absorb heat, and the probability of generating hot spots on the battery piece is further reduced.