Abstract
We used a surface forces apparatus (SFA) to investigate the drainage of thin films of undecanol from a pore consisting of two atomically smooth mica sheets. Time-resolved images of the contact area during drainage show an initial elastohydrodynamic deformation of the substrates. In the late stage, the expulsion of a molecularly thin layer of alcohol is imaged in two dimensions. We analyze the dynamics of the expulsion process and discuss the physical mechanisms in terms of a model that includes the hydrodynamic flow in the two-dimensional liquid layer and the elastic properties of the substrates. We also discuss the optical resolution required to observe layering transitions in two dimensions and present a new design of a SFA optimized for these purposes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More 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.