Optical tensiometry is the best choice when liquid-solid interactions and/or solid properties (such as surface free energy) are
measured on samples that are not homogeneous and regular in size and shape. The main benefits are following: Small liquid volume demanded (only some microliters) Solid substrate can be asymmetrical (e.g. rubber glove mould) Both sides of the sample don’t need to be similar (coating and surface modification characterization) Contact angle mapping over the surface enables heterogeneity and cleanliness characterization Roughness correction possible e.g. by using 3D Topography module
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