Fundamentals of water repellency revealed at VTT
Principal Scientist of VTT Technical Research Centre of Finland, Dr. Lasse Makkonen has explained the frictional mechanism that resists the motion of drops on inclined surfaces and when affected by wind drag, and developed a theory by which sliding of drops off surfaces of different materials can be predicted. This makes it possible to systematically develop hydrophobic surfaces by modifying their base material and roughness. Sliding of drops off surfaces affects the water repellency of clothing, visibility through wind screens in rain, and many industrial processes. Hence, wettability