Abstract
The effect of temperature on the rupture of foam bilayers is studied experimentally. The foam bilayers are microscopic horizontal Newton black foam films of radius 0.25 mm in contact with an aqueous solution of surfactant. The dependence of the mean time for rupture of the bilayers on the concentration of surfactant (sodium dodecyl sulfate, NaDoS) dissolved in the solution, in the presence of 0.5 mol dm −3 NaCl, is obtained at 10, 22 and 30°C. The following thermodynamic parameters: size of the nucleus hole, nucleation work and equilibrium surfactant concentration are determined for the above temperatures according to the theory of rupture of foam bilayers by hole nucleation. Values of 3.1·10 −11 J m −1 for the specific edge free energy of bilayer circular hole and 6.7·10 −20 J for the binding energy of NaDoS molecule in the foam bilayer are calculated.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
