Contact angle measurement and drop contour analysis
Wettability analysis, determination of contact angles and surface tension of liquids and solids
| investigation method | Contact angle measurement and drop contour analysis |
| Device type and equipment | OCA 25 with electronic direct dosing system (DataPhysics) |
| functional principle | Video-based measurement and display of the static and dynamic contact angle on flat, convex and concave surfaces. Analysis of the surface free energy and its components (e.g. disperse, polar and hydrogen bonding or acid/base fractions) according to nine different theories. Analysis of the surface and interfacial tension and their polar and disperse fractions based on the shape of pendant drops. |
| Typical applications | plastics, varnishes and paints, quality control |
| measurement technology | Determining the contact angle, surface energy, surface/interfacial tension |
| Norms and standards | DIN 55660-2 |
| Requirements for sample | 220 mm (L) x 70 mm (B) |
Examples of applications for contact angle measurement
Contact angle measurement for aluminum surfaces
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Contact angle measurement for polymer analysis
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You can find an overview of further methods in the field of polymer analysis in our encyclopedia – polymer analysis.