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On the structure of dissolving thin liquid films
Author(s) -
Suciu D. G.,
Smigelschi Octavian,
Ruckenstein Eli
Publication year - 1969
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690150511
Subject(s) - dissolution , wetting , surface (topology) , optics , materials science , thin film , absorption (acoustics) , surface force , mechanics , chemistry , composite material , nanotechnology , physics , geometry , mathematics
The structure of thin circular films, formed over a flat water surface during the dissolving (influenced by surface forces) of isobutanol, is examined by performing film thickness and surface velocity measurements. The thicknesses were obtained by light absorption determinations, and the velocities by a stroboscopic method. The film profiles and the dynamic wetting angles obtained differ markedly from those corresponding to a static lens. This is explained by considering the equilibrium between dynamic surface tensions instead of that between static surface tensions.