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Contact Angle Measurement System

Measures how a liquid drop sits on a surface to assess wettability.

Overview

A drop of liquid is placed on the sample and imaged in profile. The angle between the drop and the surface is measured to describe how well the liquid wets the surface.

Applications

  • Wettability of coatings and treated surfaces
  • Surface cleanliness and adhesion studies
  • Surface and interfacial tension by the pendant drop method

Technical Specifications

Measuring methods
Sessile drop (static and dynamic) for contact angle; pendant drop for surface and interfacial tension
Measuring range
0.1° to 180°
Resolution
0.1°
Accuracy
0.3°
Maximum sample size (W × D × H)
160 × 100 × 10 mm
Camera
10 MP

Specifications are as stated in the instrument documentation.

Digital microscope used for contact angle imaging

Category

Surface & Corrosion

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