In the first edition of the Tensiometry Masterclass Series, we will be shifting our perspective, quite literally, with tilting contact angle measurements on the Theta Flow/Flex Optical Tensiometer. Dynamic contact angle measurements through droplet tilting are a great way to assess the efficacy, quality, and history of coatings that have performance properties dependent on their wettability: such as liquid-repellent/phobic surfaces, self-cleaning, anti-microbial, bonding, etc. While this experiment is deceptively simple, there are important considerations for a successful measurement. In this masterclass, we will go through a dynamic contact angle measurement using the tilting cradle, manually rotating the entire optical tensiometer while capturing droplet images as the sample and droplet tilts. We will focus on key parameters in the setup and the automated hardware/software features in OneAttension to enhance the accuracy and reproducibility of this measurement.
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
