Polymer material for outdoor use with self-healing surface properties after scratching or wear damage

摘要

The present invention relates to surface treatment for composite molded bodies from polymeric materials and their use in solar devices. The solar device can be a solar reflector for concentrating solar radiation, a flexible photovoltaic composite film, or a CPV (Concentrated Photovoltaic) lens for concentrating solar radiation. Surface treatment is a self-healing coating based on a crosslinkable fluoropolymer, for example PFEVE (polyfluoroethylene alkyl vinyl ether). This coating exhibits good optical properties, can be used for a very long time, especially in solar applications, when used outdoors, exhibits self-cleaning properties, and in particular this coating is self-cleaning with respect to mechanical damage such as scratches. Shows repairability.