Registration Number
0222U005108,
0122U002645
, R & D reports
Title
Stability studies of femtosecond laser-formed and organically coated super hydrophobic surfaces in UV environment
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Head
Myronyuk Oleksii V., к.т.н.
Registration Date
19-12-2022
Organization
National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"
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The object of study - processes of obtaining and loss of stability of stable water-repellent structures obtained by femtosecond laser ablation.
Purpose - to determine the factors that determine the stability of the organic surface layer on femtosecond laser-textured surfaces with superhydrophobic properties to ultraviolet radiation.
The research methods were scanning electron microscopy (SEM-106 Selmi), energy dispersive spectroscopy (MIRA3 LMU, Tescan), infrared spectroscopy (Nicolet 4700), sitting drop method (Konus Academy + Delta Optical HDCE 5).
Based on the results of the performed studies, LIPSS textures and their combinations with micro texturing were selected as the most effective and stable water-repellent structures. For further research, silicon and organofluorine modifiers were chosen, the use of which allows achieving the values of the angle of wetting of surfaces up to 164° and stability under UV irradiation is 3.5-5 times higher compared to aliphatic modifiers.
An approach to the evaluation of the energy of textured surfaces by analyzing the wetting curves with test liquids with a surface tension range of 18-73 mN/m was developed.
The obtained results are the basis for the second phase of the project, which is planned to assess the feasibility of implementing the results as water-repellent, anti-icing, and anti-corrosion surfaces.
Product Description
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Baklan Denys V.
Vasyliev Georgii S.
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2022-12-19
