Barz, Jakob PhilippJakob PhilippBarzUmlauf, GeorgGeorgUmlauf2023-06-262023-06-262022https://publica.fraunhofer.de/handle/publica/44471910.1002/vipr.2022007872-s2.0-85137339123In the innovation field “Functional Surfaces and Materials” at the Fraunhofer IGB, research is being carried out to tailor the surface properties of PU foils and other materials via roll-to-roll processes. The goal is to save considerable costs by applying a unique and resource-saving structures and coatings to self-adhesive, transparent and erosion-resistant PU foils to equip various technical devices with water and ice repellency. We are now able to obtain such surfaces in two separate roll-to-roll processes using low-pressure plasma (pressure p < 100 Pa) in combination with a microstructuring process. Through structure and coating, the contact area and adhesion are minimized. Compared to an untreated reference surface, we are able to increase water contact angles from 76° to 157°. The structuring and coating of polymer foils make it therefore possible to open up new fields of application at lower cost than direct treatment of the various technical surfaces.ennote