Abstract
Measurements of contact angle for water, glycerol, formamide, diiodomethane and bromoform on the surface of fluorite covered with a film of sodium dodecyl sulfate (SDS) were made. From these results the Lifshitz—van der Waals and the acid—base components of the surface free energy of fluorite covered with an SDS film were calculated. The electron-acceptor and the electron-donor parts of the acid—base component were also evaluated. On the basis of the measurements and the calculations carried out, a minimum wettability of fluorite and a minimum contribution of the acid—base intermolecular interaction to the surface free energy of fluorite were found when the fluorite surface was covered with an SDS monolayer. At higher SDS concentrations, a bilayer film can be formed on the fluorite surface, increasing the electron-donor proportion of the acid—base component of the surface free energy.
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.
