Camera based contact angle measurements are the modern and preferred method for investigating interactions between liquid and solid surfaces.
|Dynamic Contact Angle||
Dynamic contact angle is composed of the advancing and receding contact angles that represent the contact angle hysteresis of a sample surface.
Liquid surface tension and interfacial tension are measured on a camera based contact angle meter through pendant drop method using established Young-Laplace theory.
|Powder Contact Angle||
For fine powders, a surface tensiometer can be adapted for powder contact angle measurements with the appropriate attachments. The measurement of the contact angle is based on the Washburn equation and the application of a high-resolution scale.
|Micro Contact Angle||
A high speed camera and powerful optics combined with unique pico to nano liter droplet dispensing system enables contact angle measurements of micro-sized features or surfaces.
|Surface Free Energy||
Total surface free energy, surface free energy components, work of adhesion and interfacial free energy of solid surfaces can be analyzed through contact angle measurements of a solid surface with probe liquids possessing known surface tension values.