The spreading of a liquid on a solid surface is not only of fundamental interest. It is also relevant in many applications such as coating, printing, and nanotechnology. We study the influence of hydrodynamic boundary conditions (slip vs. no slip) or mechanical deformation of soft surfaces on the dynamics of wetting.
In the case of adaptive surfaces, dynamics of macroscopic wetting can be used to probe time and length scales of the molecular processes involved.
Another common but poorly understood phenomenon we study is charge separation at interfaces due to sliding or bouncing of droplets.
- Charging of interfaces by liquids -> Stefan Weber, Michael Kappl, Hans-Jürgen Butt
- Boundary Slip -> Kaloian Koynov
- Drop adhesion forces -> Rüdiger Berger, Michael Kappl, Doris Vollmer, Hans-Jürgen Butt
- Adaptive wetting -> Hans-Jürgen Butt, Rüdiger Berger, Kaloian Koynov, Werner Steffen, Doris Vollmer