Drop Shape Analyzer

Analyzing phase interactions and transitions at high pressures

The DSA100HP40 performs precise measurements of contact angle as well as surface tension and interfacial tension at pressures of up to 40 bar and temperatures of up to 200 °C. The main focus lies in chemical processes under pressure in which phase interactions and transitions as well as solid-liquid wetting must be investigated and optimized. The DSA100HP40 combines our expertise in the field of optical drop shape analysis and the know-how of our partner EUROTECHNICA in high pressure applications.

Applications

• Development and optimization of melt emulsions

• Optimization of chemical syntheses and separation processes under pressure

• Wetting of catalysts under pressure

Measuring methods

• Contact angle of a drop on a solid surface
• Contact angle using a gas bubble beneath a solid surface in a liquid
• Surface or interfacial tension using the curvature of a drop or bubble at the tip of a needle

Measuring results

• Surface tension of a liquid

• Interfacial tension between two liquids

• Static contact angle

• Contact angle using a bubble in a liquid