Pendant Drop – Measuring surface tension

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Video Transcript for Pendant Drop – Measuring surface tension:

Pendant drop analysis measures the shape of a liquid drop suspended from the end of a tube in the air or a lower-density liquid.

The shape of the hanging drop of liquid is the result of the competing forces of gravity, trying to pull the drop into a pear shape, and surface tension, trying to maintain a sphere. By analysis of the resulting drop shape, surface tension and interfacial tension can be calculated. If you would like to learn more about this technique, please feel welcome to contact us at [email protected]

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We provide a fast-turnaround surface tension testing and wetting analysis service for your samples.

We can provide measurements of surface tension and hydrophobicity or hydrophilicity of a surface or liquid as a function of time and/or temperature. On completion of our testing, you will receive a full written report with graphical and numerical results and explanatory notes.

We are an expert measurement lab and any support you may need from us regarding the relevance, interpretation or application of the results we provide is all included in the initial cost of the testing.

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Centre for idustrial rheology, pendant drop
Rheology Lab