Surface Science Blog | Surface Free Energy

> 3 min

Surface free energy with Acid-Base method

One of the commonly used surface free energy theories is called Acid - base or Van Oss-Chaudhury-Good method according to its inventors.

Surface Free Energy

~ 4 min

What is surface free energy?

Surface free energy can be considered as the surface tension of a solid. Surface free energy is calculated through the contact angle measurements. By knowing the surface free energy of the solid, one can predict the behavior of any liquid on the surface.

Surface Free Energy

> 5 min

OWRK method – Owens, Wendt, Rabel and Kaelble model

OWRK is one of the most used surface free energy theories. It divides the interfacial interactions into two parts; polar and dispersive.

Surface Free Energy

> 2 min

Surface free energy measurements in practice

Surface free energy can be calculated through contact angle measurements. Automated instruments are available.

Surface Free Energy

~ 3 min

Which surface free energy method should be used?

You might find it confusing when seeing all the different methods for surface free energy calculations. As surface free energy can give you more information on your surface compared to the contact angle measurements alone, it is time well spent to study the different theories more in detailed.