Drop Shape Analyzer

The versatile manual instrument for changing contact angle tasks

In its Basic version, the DSA30 Drop Shape Analyzer specializes in the accurate wetting measurement by means of the static contact angle. With fast and simple exchange of solid samples and dosing liquids, the instrument assists you in ensuring the effectiveness of cleaning procedures or the quality of coating and wetting processes. Optional accessories for wetting measurements at higher temperatures and manifold upgrade options enhance the spectrum of the instrument.

Applications

• Analyzing the wettability of plastics, glass, ceramics, wood, paper, or metal

• Analyzing the effectiveness of hydrophobic coatings and other coatings

• Analyzing surface cleanliness

• Wetting analysis at controlled temperature

Measuring methods

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  Contact angle of a drop on a solid surface

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  Contact angle using a gas bubble beneath a solid surface in a liquid

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  Surface tension using the curvature of a perfectly symmetrical drop on a circular sample pedestal

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  Roll-off behavior and advancing/receding contact angle of a drop on a tilted surface

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  Contact angle at an immersed, cylindrical sample, usually a fiber

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  Measuring the recently receded contact angle to characterize dewetting behavior

Measuring results

• Static contact angle

• Contact angle using a bubble in a liquid

• Temperature