Methodology for High Accuracy Contact Angle Measurement†
作者： A. Kalantarian , R. David , A. W. Neumann
DOI: 10.1021/LA902016J
关键词: Fluoropolymer 、 Contact angle 、 Drop (liquid) 、 Rotational symmetry 、 Chemistry 、 Subpixel rendering 、 Solid substrate 、 Capillary action 、 Image processing 、 Optics 、 Spectroscopy 、 Electrochemistry 、 General Materials Science 、 Surfaces and Interfaces 、 Condensed matter physics
摘要: A new version of axisymmetric drop shape analysis (ADSA) called ADSA-NA (ADSA-no apex) was developed for measuring interfacial properties configurations without an apex. facilitates contact angle measurements on drops with a capillary protruding into the drop. Thus much simpler experimental setup, not involving formation complete from below through hole in test surface, may be used. The angles long-chained alkanes commercial fluoropolymer, Teflon AF 1600, were measured using method. numerical scheme incorporated image processing to improve location points liquid meniscus solid substrate subpixel resolution. images acquired experiments also analyzed by different technique theoretical fitting analysis-axisymmetric interfaces (TIFA-AI). results compared literature values obtained means standard ADSA sessile ape...
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