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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 15: Poster I
CPP 15.40: Poster
Monday, March 18, 2024, 18:00–20:00, Poster C
Friction Measurements of Single Pinning Defects Using Droplet Probe Microscopy — •Diego Cortes1, Michael Kappl1, Hans-Jürgen Butt1, and Tomas Corrales2 — 1Max Plank Institute, Mainz, Germany — 2Universidad Tecnica Federico Santa Maria, Valparaiso, Chile
Friction of drops sliding over solid surfaces depends on several effects. By scaling down the size of drops, dissipation at the contact line becomes more and more dominant and can be isolated from other dissipation processes. Here, we measure the energy dissipation of pico liter drops sliding over hydrophobic surfaces using Atomic Force Microscopy. This novel technique allow us to test the wetting behavior of hydrophobic material on sub-micrometer scale.
Keywords: Wetting; Interfaces; Capillarity; AFM; Fluidics