Simple, Accurate Method for Contact Angle Measurement

The wetting behavior of a liquid on a solid surface is a phenomenon of significant practical importance. The angle of liquid-to-solid contact is important in areas such as adhesion, adsorption, lubrication, catalysis, solid-liquid reaction kinetics, heat transfer, electrical conduction, and microfluidic devices. The angle of contact is one way to measure and assess the phenomenon of liquid wetting of a solid surface.