Resin composition, multi-layered film and photovoltaic module including the same

摘要

A resin composition, a multi-layered film, a backsheet for photovoltaic modules, a method thereof, and a photovoltaic module are provided. The multi-layered film including a coating layer including a fluorine-based polymer has an excellent durability and weather resistance, and also exhibits high interfacial adhesive strength to a substrate since the multi-layered film is formed by coating a cured product of the resin composition including the fluorine-based polymer, an acrylic polymer including a thermosetting functional group, and a heat-curing agent on the substrate. In addition, drying can be performed at a low temperature during the manufacture of the multi-layered film so that the manufacturing costs can be decreased, productivity can be increased, and the deterioration of the product due to heat modification, heat shock, and the like, can be prevented. The multi-layered film can be effectively used as a backsheet for various photovoltaic modules.

主权项

1. A resin composition, comprising:
a fluorine-based polymer; an acrylic polymer including at least one of a thermosetting functional group selected from the group consisting of a carboxyl group, an amide group, an amino group, an epoxy group, an isocyanate group, a cyano group, an acid anhydride group, a mercapto group, a silanol group, an alkoxysilane group, and an oxazoline group; and a heat-curing agent, wherein the degree of crystallinity of the fluorine-based polymer is 55% or less, and wherein an equivalent weight of the thermosetting functional group of the acrylic polymer is at least 800 to less than 40,000 in the resin composition.