Explanation

It refers to a kind of organic polymer film with ester bond in molecular structure. According to different chemical structures, polyester films can include polyethylene terephthalate (PET), polyethylene naphthalate (PEN) and other varieties, which are usually prepared by polymerization of diacid and glycol monomer. polyester films is usually made by biaxial stretching process, which has the characteristics of high strength, good transparency, non-toxic, good barrier and excellent electrical insulation performance. It is widely used as packaging materials, electronic capacitor insulation materials and information recording materials. In recent years, electrical grade polyester films and polyester films for display devices have received extensive attention. As a high-end product of polyester films components, electrical grade polyester films is widely used in electrical insulation, circuit printing, solar photovoltaic and other industries, while polyester films for display devices is mainly used as the substrate materials of flexible display devices.

Classification