A contact angle measuring apparatus has also been available in Building 2501 since 15.07.21.
This is an OCA 15EC from the company DataPhysics Instruments. Equipped with a double syringe module, each for glass and disposable syringes, and a camera with up to 156 frames/s at 1448 x 1066 pixels or 3246 frames/s at 1448 x 60 pixels. This means that even fast processes can be recorded and evaluated.
In addition, the instrument also has an electronically controlled tilting device of up to 100°. The following processes are available for measurements:
- Pendant drop (pendant drop)
- Static contact angle (sessile and captive drop)
- Dynamic contact angle
Evaluation methods are available for the following parameters:
- Contact angle measurement (static and dynamic)
- Surface tension
- Interfacial tension
- Advancing and retreating contact angle
- Calculation of surface energies and their components
- Calculation of wetting envelope
- Calculation of adhesion contact angle diagrams
- Interfacial tension between 2 liquids.
- Measurements on entrapped droplets or gas bubbles.
Contact:
For instructions: Cornelia Lanz
For general questions: Stephan Siroky
