kapillärfilm
Kapillärfilm refers to a thin layer of liquid that is present in the narrow spaces between solid surfaces. This phenomenon is a direct consequence of capillary action, which is the ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity. The forces responsible for capillary action are the adhesive forces between the liquid and the solid surface, and the cohesive forces within the liquid itself.
When a liquid contacts a narrow gap, such as the space between two glass slides or within
The thickness of a kapillärfilm is typically on the order of micrometers or nanometers, depending on the