This invention relates to the field of
surface engineering technology and discloses a hydrophobic snowproof film with directional air-guiding grooves. The film comprises, from top to bottom, a functional
surface layer, a substrate layer, and a pressure-sensitive
adhesive layer. The functional
surface layer is made of low
surface energy materials such as fluorosilicone-modified
polyurethane, cross-linked and cured. Its surface has a micro-texture structure with an extension direction parallel to the tilt direction of the photovoltaic panel. The
groove width or edge spacing of the micro-texture is 50 micrometers to 2 millimeters, and the depth is 20 micrometers to 1
millimeter. This invention, through the synergistic effect of low chemical
surface energy and directional physical grooves, constructs continuous gas-phase channels at the interface between ice /
snow and the film layer, blocking the anchoring of the ice /
snow interface and eliminating lateral mechanical
interlocking, significantly reducing the shear adhesion of
snow, and causing snow to slide off naturally by gravity. Furthermore, on-site application is extremely convenient.