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Rupture of Wetting Films Formed by Bubbles at a Quartz Surface in Cationic Surfactant Solutions
Author(s) -
Wiertel-Pochopien Agata,
Zawala Jan
Publication year - 2019
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201900003
Subject(s) - wetting , cationic polymerization , pulmonary surfactant , bubble , adsorption , quartz , chemical engineering , kinetics , solid surface , materials science , layer (electronics) , chemistry , phase (matter) , chemical physics , nanotechnology , composite material , polymer chemistry , organic chemistry , mechanics , physics , quantum mechanics , engineering
Experimental studies were performed on the kinetics of the three‐phase contact formation and bubble attachment to a quartz surface in solutions of a cationic surfactant of various concentrations. By tuning the distance between the single‐bubble formation point and the quartz surface immersed in the solution, the influence of the state of the dynamic adsorption layer over a rising bubble on the mechanism of rupture of a wetting film formed was elucidated. Based on the unique methodology, allowing precise control over the initial degree of adsorption coverage at the detaching bubble, new evidence was found confirming the electrostatic character of the wetting film rupture in cationic surfactant solutions of low concentrations.