Nanoroughness impact on liquid-liquid displacement
The influence of surface nanoroughness on the static and dynamic behavior of a solid-water-dodecane contact line is investigated. Surface roughness is found to affect the substrate static and dynamic wettability for root-mean-square roughnesses below 7 nm. The kinetics of liquid-liquid displacement...
| Main Authors: | , , , |
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| Format: | Journal Article |
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American Chemical Society
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/54620 |
| _version_ | 1848759418409189376 |
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| author | Ramiasa, M. Ralston, J. Fetzer, R. Sedev, Rossen |
| author_facet | Ramiasa, M. Ralston, J. Fetzer, R. Sedev, Rossen |
| author_sort | Ramiasa, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The influence of surface nanoroughness on the static and dynamic behavior of a solid-water-dodecane contact line is investigated. Surface roughness is found to affect the substrate static and dynamic wettability for root-mean-square roughnesses below 7 nm. The kinetics of liquid-liquid displacement is slowed down drastically by the nanoroughness. Nevertheless, contact line motion is found to be governed by a thermally activated process. This process is not based on a pure molecular adsorption-desorption mechanism. Instead, two different nanoscale local displacements mechanisms occurring in the vicinity of the contact line may account for the thermally activated dynamics: we suggest that both molecular adsorption-desorption processes and contact line pinning on nanodefects play significant roles in controlling water displacement by dodecane on surfaces which are rough at the nanoscale. |
| first_indexed | 2025-11-14T09:59:34Z |
| format | Journal Article |
| id | curtin-20.500.11937-54620 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:59:34Z |
| publishDate | 2012 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-546202017-11-02T23:57:58Z Nanoroughness impact on liquid-liquid displacement Ramiasa, M. Ralston, J. Fetzer, R. Sedev, Rossen The influence of surface nanoroughness on the static and dynamic behavior of a solid-water-dodecane contact line is investigated. Surface roughness is found to affect the substrate static and dynamic wettability for root-mean-square roughnesses below 7 nm. The kinetics of liquid-liquid displacement is slowed down drastically by the nanoroughness. Nevertheless, contact line motion is found to be governed by a thermally activated process. This process is not based on a pure molecular adsorption-desorption mechanism. Instead, two different nanoscale local displacements mechanisms occurring in the vicinity of the contact line may account for the thermally activated dynamics: we suggest that both molecular adsorption-desorption processes and contact line pinning on nanodefects play significant roles in controlling water displacement by dodecane on surfaces which are rough at the nanoscale. 2012 Journal Article http://hdl.handle.net/20.500.11937/54620 10.1021/jp2120274 American Chemical Society restricted |
| spellingShingle | Ramiasa, M. Ralston, J. Fetzer, R. Sedev, Rossen Nanoroughness impact on liquid-liquid displacement |
| title | Nanoroughness impact on liquid-liquid displacement |
| title_full | Nanoroughness impact on liquid-liquid displacement |
| title_fullStr | Nanoroughness impact on liquid-liquid displacement |
| title_full_unstemmed | Nanoroughness impact on liquid-liquid displacement |
| title_short | Nanoroughness impact on liquid-liquid displacement |
| title_sort | nanoroughness impact on liquid-liquid displacement |
| url | http://hdl.handle.net/20.500.11937/54620 |