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Information × Registration Number 0223U005324, 0123U104189 , R & D reports Title Stability studies of femtosecond laser-formed and organically coated hydrophobic surfaces in UV environment popup.stage_title Head Myroniuk Oleksii V., Registration Date 20-12-2023 Organization National Technscal University of Ukraine "Kiev Polytechnic Institute". popup.description2 Object of study - water-repellent structures obtained by laser ablation. Purpose - to obtain a UV-resistant organic surface layer on femtosecond laser-textured surfaces with superhydrophobic properties. The research methods used were scanning electron microscopy (MIRA3 LMU, Tescan), energy dispersive spectroscopy (INCA X-ACT by Oxford Instruments), and the sitting drop method (Konus Academy + Delta Optical HDCE 5). It is shown that the highest superhydrophobic properties on the surface of metals are achieved for LIPSS textures on the tops of the microtexture. It is demonstrated that superhydrophobicity on these surfaces is achieved both under the condition of spontaneous hydrophobization in atmospheric conditions and as a result of chemical treatment. The stability of the modifier layers and the ability of the surfaces to repel liquids under UV irradiation significantly increase when switching to chemical modification. The main criteria for the formation of an organic modifier layer that is resistant to UV radiation on surfaces textured with a femtosecond laser are formulated. These are obtaining the most effective textures created by combining the microscale level and nanoscale LIPSS, using chemical modifiers in solution on fresh hydrophilized surfaces, and choosing an organic layer of siloxane type. Product Description popup.authors Bilousova Anna Baklan Denys V. Vasyliev Heorhii S. popup.nrat_date 2023-12-20 Close