Stability of a Floating Water Droplet on an Oil Surface
This article presents a new configuration of a water droplet floating on oil surface. The configuration is characterized by an acute contact angle (i.e., θ2 < π/2). In contrast, the previously identified droplet had an obtuse contact angle, which was easily sunk by a small disturbance. By employi...
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| Format: | Journal Article |
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American Chemical Society
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/36120 |
| _version_ | 1848754681442992128 |
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| author | Phan, Chi |
| author_facet | Phan, Chi |
| author_sort | Phan, Chi |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This article presents a new configuration of a water droplet floating on oil surface. The configuration is characterized by an acute contact angle (i.e., θ2 < π/2). In contrast, the previously identified droplet had an obtuse contact angle, which was easily sunk by a small disturbance. By employing a common surfactant, the new configuration was experimentally verified in a mineral oil with a density similar to that of crude oils. The new droplet is kinetically more stable than the previous configuration and can sustain strong disturbances. The results also highlight the significance of dynamic interfacial adsorption on the stability of the floating droplet. |
| first_indexed | 2025-11-14T08:44:16Z |
| format | Journal Article |
| id | curtin-20.500.11937-36120 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:44:16Z |
| publishDate | 2014 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-361202017-09-13T15:17:09Z Stability of a Floating Water Droplet on an Oil Surface Phan, Chi This article presents a new configuration of a water droplet floating on oil surface. The configuration is characterized by an acute contact angle (i.e., θ2 < π/2). In contrast, the previously identified droplet had an obtuse contact angle, which was easily sunk by a small disturbance. By employing a common surfactant, the new configuration was experimentally verified in a mineral oil with a density similar to that of crude oils. The new droplet is kinetically more stable than the previous configuration and can sustain strong disturbances. The results also highlight the significance of dynamic interfacial adsorption on the stability of the floating droplet. 2014 Journal Article http://hdl.handle.net/20.500.11937/36120 10.1021/la403830k American Chemical Society restricted |
| spellingShingle | Phan, Chi Stability of a Floating Water Droplet on an Oil Surface |
| title | Stability of a Floating Water Droplet on an Oil Surface |
| title_full | Stability of a Floating Water Droplet on an Oil Surface |
| title_fullStr | Stability of a Floating Water Droplet on an Oil Surface |
| title_full_unstemmed | Stability of a Floating Water Droplet on an Oil Surface |
| title_short | Stability of a Floating Water Droplet on an Oil Surface |
| title_sort | stability of a floating water droplet on an oil surface |
| url | http://hdl.handle.net/20.500.11937/36120 |