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Principles of Video Contact Angle Analysis, Medicine, Page 17

Principles of Video Contact Angle Analysis

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Advancing and Receding Contact Angles

When the testing surface is tilted,
contact angles at either sides of the drop
differ.
Advancing Contact Angle relates to surface
energy and wettability.
Receding Contact Angle relates to surface
roughness and repellency.



Receding Contact Angle

r a
Advancing Contact Angle




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