In the second edition of our Tensiometry Masterclass Series, we will characterize real surface wettability with roughness corrected contact angle measurements on the Theta Flow/Flex Optical Tensiometer. For real surfaces, surface roughness enhances surface wetting behavior and can significantly affect the measured contact angle. The contact angle of a surface, independent of the effect of surface roughness can be determined through roughness correction. In this masterclass, we will go through a roughness corrected contact angle measurement using the 3D topography module, measuring the material surface roughness right at the location of the contact angle drop. We will focus on the software set up and operation of the automated measurement in OneAttension as well as data analysis of the roughness corrected contact angle.
View the Entire Masterclass Series:
- Going Full-Tilt: Dynamic Contact Angle Measurements with a Tilting Cradle
- Measuring Roughness Corrected Contact Angle: Combined Contact Angle and Surface Roughness Measurements with 3D Topography
- It’s a Small World: Contact Angles at the Picoliter Scale
- Dynamic Contact Angle Measurements with a Tilting Stage
- Get Hooked: Interfacial Tenson & Captive Bubble Measurements with a Hooked Needle
- Dilatational Interfacial Rheology with the Pulsating Drop Module
