Effect of high-viscosity interphases on drainage between hydrophilic surfaces.
Journal Article
·
· Proposed for publication in Langmuir Journal.
OSTI ID:1003975
Drainage of water from the region between an advancing probe tip and a flat sample is reconsidered under the assumption that the tip and sample surfaces are both coated by a thin water 'interphase' (of width {approx} a few nm) whose viscosity is much higher than the bulk liquid's. A formula derived by solving the Navier-Stokes equations allows one to extract an interphase viscosity of {approx}59 KPa-sec (or {approx}6.6 x 10{sup 7} times the viscosity of bulk water at 25C) from Interfacial Force Microscope measurements with both tip and sample functionalized hydrophilic by OH-terminated tri(ethylene glycol) undecylthiol, self-assambled monolayers.
- Research Organization:
- Sandia National Laboratories
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1003975
- Report Number(s):
- SAND2003-2842J
- Journal Information:
- Proposed for publication in Langmuir Journal., Journal Name: Proposed for publication in Langmuir Journal.
- Country of Publication:
- United States
- Language:
- English
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