Abstract
The kinetics of dewetting (a decrease in contact angles and wetted surface area) during the evaporation of drops of cetyltrimethylammonium bromide (CTAB) solutions from paraffin and Teflon surfaces was studied in a wide concentration range. Three different stages of this process were found: (1) a monotonic decrease in the contact angle at a “fixed” position of the three-phase contact line, (2) contraction of the wetted surface area (the drop base) at a constant contact angle, and (3) simultaneous contraction of the drop base and a decrease in the contact angle. The CTAB distribution over a solid surface after the drop evaporation was studied by autoradiography. Depending on the surfactant concentration and the nature of a hydrophobic substrate, dewetting occurs by two mechanisms: slipping and “carpet rolling.”
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.
