Nanorheology: An investigation of the boundary condition at hydrophobic and hydrophilic interfaces
- 1 September 2002
- journal article
- Published by Springer Nature in The European Physical Journal E
- Vol. 9 (1) , 47-53
- https://doi.org/10.1140/epje/i2001-10112-9
Abstract
It has been shown that the flow of a simple liquid over a solid surface can violate the so-called no-slip boundary condition. We investigate the flow of polar liquids, water and glycerol, on a hydrophilic Pyrex surface and a hydrophobic surface made of a Self-Assembled Monolayer of OTS (octadecyltrichlorosilane) on Pyrex. We use a Dynamic Surface Force Apparatus (DSFA) which allows one to study the flow of a liquid film confined between two surfaces with a nanometer resolution. No-slip boundary conditions are found for both fluids on hydrophilic surfaces only. Significant slip is found on the hydrophobic surfaces, with a typical length of one hundred nanometers.Keywords
All Related Versions
This publication has 0 references indexed in Scilit: