| 46322 |
Creator |
c3baa1aae2495d9fcf383c433b46bfe0 |
| 46322 |
Creator |
ext-56e29f9589fc4023fdef6a4cd65d1b9a |
| 46322 |
Creator |
ext-a0411af75401fde59d6f7f71a05bbfca |
| 46322 |
Date |
2016-06-22 |
| 46322 |
Is Part Of |
repository |
| 46322 |
Is Part Of |
p2051672X |
| 46322 |
abstract |
The adhesion between surfaces can be enhanced significantly by the presence of hydrogen
bonding. Confined water at the nanoscale can display behaviour remarkably different
to bulk water due to the formation of hydrogen bonds between two surfaces. In this
work we investigate the role of confined water on the interaction between hydrophilic
surfaces, specifically the effect of organic contaminants in the aqueous phase, by
measuring the peak adhesive force and the work of adhesion. Atomic force microscope
cantilevers presenting hemispherical silica tips were interacted with planar single
crystals of silica in the presence of dimethylformamide, ethanol, and formamide; solution
compositions in the range 0-100 mol% water were investigated for each molecule. Each
molecule was chosen for its ability to hydrogen bond with water molecules, with increasing
concentrations likely to disrupt the structure of surface-bound water layers. With
the exception of aqueous solutions containing low concentrations of ethanol, all molecules
decreased the ability of confined water to enhance the adhesion between the silica
surfaces in excess of the predicted theoretical adhesion due to van der Waals forces.
The conclusion was that adhesion depends strongly on the formation of a hydrogen-bonding
network within the water layers confined between the silica surfaces. |
| 46322 |
authorList |
authors |
| 46322 |
issue |
3 |
| 46322 |
status |
peerReviewed |
| 46322 |
uri |
http://data.open.ac.uk/oro/document/457495 |
| 46322 |
uri |
http://data.open.ac.uk/oro/document/457529 |
| 46322 |
uri |
http://data.open.ac.uk/oro/document/457530 |
| 46322 |
uri |
http://data.open.ac.uk/oro/document/457531 |
| 46322 |
uri |
http://data.open.ac.uk/oro/document/457532 |
| 46322 |
uri |
http://data.open.ac.uk/oro/document/457533 |
| 46322 |
uri |
http://data.open.ac.uk/oro/document/457796 |
| 46322 |
volume |
4 |
| 46322 |
type |
AcademicArticle |
| 46322 |
type |
Article |
| 46322 |
label |
Bowen, James ; Rossetto, Hebert L. and Kendall, Kevin (2016). Adhesion between
silica surfaces due to hydrogen bonding. Surface Topography: Metrology and Properties,
4(3) 034001. |
| 46322 |
label |
Bowen, James ; Rossetto, Hebert L. and Kendall, Kevin (2016). Adhesion between silica
surfaces due to hydrogen bonding. Surface Topography: Metrology and Properties, 4(3)
034001. |
| 46322 |
Title |
Adhesion between silica surfaces due to hydrogen bonding |
| 46322 |
in dataset |
oro |