Abstract
The formation of the Newton Black Film (NBF) in single vertical soap films with varied electrolyte concentrations was studied. A ‘slow’ and a ‘rapid’ regime for NBF formation could be identified. These results were interpreted in terms of a modified Scheludko–Vrij model. In analogy with the DLVO theory for coagulation kinetics, we consider the effect of the disjoining pressure on the spontaneous growth of thickness fluctuations in thin films. The repulsion between the film surfaces and the elasticity of the films have a damping effect on these fluctuations. The formation of the NBF by a spontaneously growing fluctuation explains why surfactants stabilise foams and can make them persistent.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
