Wettability
Wettability refers to the ability of a liquid to maintain contact with a solid surface, influenced by the adhesive forces between the liquid and the solid compared to the cohesive forces within the liquid. It is typically measured by the contact angle formed when a droplet of liquid is placed on a surface. A smaller contact angle indicates better wettability, meaning the liquid spreads more easily on the surface.
The concept of wettability is important in various fields, including materials science, coatings, and biotechnology. It affects processes such as painting, adhesion, and fluid flow in porous materials, influencing how liquids interact with different surfaces.