Correlation of Contact Angle Hysteresis and Hydrodynamic Lubrication

The strength of molecular adhesion at the lubricant–solid interface plays a key role in determining the load-carrying and film forming capacity of a lubricated system of meso- or microscale. If the liquid molecules gain higher energies than the potential energy barrier for adhesion, slip occurs at the interface. The contact angle of a liquid on a solid surface is related to the intermolecular attractive force. Some studies demonstrated the...