What is contact angle?
Contact angle is described as the interaction between a liguid and a solid. The angle between the surface of the liquid and the contact surface is called the contact angle θ.
With a contact angle being higher than 90°, the solid is not wettable.
In case the contact angle is lower than 90°, we can say the solid is wettable.
When the contact angle is 0°, there is a complete wetting.
How to measure contact angle?
PGX+ contact angle analyser - Pocket Goniometer
The PGX+ Pocket Goniometer, measures contact angle (dynamic and static), surface tension, and surface energy. According to the...
PG Dosing unit for PGX+
The PG Dosing Unit is a standalone pumping device designed to deliver liquid droplets from a disposable...
Testinks - Test Ink Method
These test inks measure the surface tension of polymers. Several inks with different surface tensions are available...