Nikolai Kubochkin M.Sc.

Benetzung elastischer Oberflächen


work +49 6151 16-22276
fax +49 6151 16-22262

Work L2|06 215
Peter-Grünberg-Str. 10
64287 Darmstadt

Since 2019 Researcher at the Institute for Technical Thermodynamics, TU Darmstadt
2016-2019 Junior Research Fellow, Russia, University of Tyumen, Photonics and Microfluidics Laboratory
2015-2017 M.Sc. in Applied Physics, Russia, University of Tyumen, Physical-Technical Institute
2011-2015 B.Sc. in Theoretical Physics, Russia, University of Tyumen, Physical-Technical Institute

In a manifold of branches of industry such as ink-jet printing, painting and coating technologies, cosmetic production and others, wetting dynamics plays a crucial role. In the last years, soft wetting, that is wetting phenomena occurring on soft surfaces, has gained increasing attention, since a number of surfaces created by nature as well as surfaces used in industry are deformable (for instance, human hair and biological tissues, elastic membranes and soft polymer gels, micro- and nanofibers). Therefore, understanding of soft wetting is imperative for ability to predict behavior of such surfaces and tune it to reach better efficiency of application. The omnipresence of these processes may give the semblance of their simplicity. However, they can barely be fully explained without a concept of surface forces acting in the close vicinity of the three-phase contact line.

In the frame of this project, we develop a models to describe the wetting dynamics of a droplet after deposition onto elastic surfaces, both smooth and structured (particularly, permeable). The models are based on the numerical solution of the long-wave theory equation coupled with the solution of the elasticity problem for the substrate. The action of surface forces is described using the disjoining pressure concept which allows to set the equilibrium contact angle of the droplet and the thickness of the adsorbed layer.

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