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How antifoams act: a microgravity study
Antifoams are widely used to control or to avoid foam production. In order to work, antifoam particles need to break foam films efficiently, which many antifoams do very well. However, once they have broken a film, to continue to be effective they need to be transported to the next film. We show, fo...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5515500/ https://www.ncbi.nlm.nih.gov/pubmed/28725710 http://dx.doi.org/10.1038/npjmgrav.2015.4 |
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author | Yazhgur, Pavel Langevin, Dominique Caps, Hervé Klein, Vincent Rio, Emmanuelle Salonen, Anniina |
author_facet | Yazhgur, Pavel Langevin, Dominique Caps, Hervé Klein, Vincent Rio, Emmanuelle Salonen, Anniina |
author_sort | Yazhgur, Pavel |
collection | PubMed |
description | Antifoams are widely used to control or to avoid foam production. In order to work, antifoam particles need to break foam films efficiently, which many antifoams do very well. However, once they have broken a film, to continue to be effective they need to be transported to the next film. We show, for the first time, that buoyancy has an important part in the transport of the antifoam particles. In microgravity, where buoyancy and gravitational drainage are strongly slowed down, diffusion leads to poor antifoam performance. The foam is stable for the duration of the experiment, whereas on Earth the foam starts to disappear immediately. Indeed, microgravity renders highly efficient antifoam practically useless. |
format | Online Article Text |
id | pubmed-5515500 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-55155002017-07-19 How antifoams act: a microgravity study Yazhgur, Pavel Langevin, Dominique Caps, Hervé Klein, Vincent Rio, Emmanuelle Salonen, Anniina NPJ Microgravity Brief Communication Antifoams are widely used to control or to avoid foam production. In order to work, antifoam particles need to break foam films efficiently, which many antifoams do very well. However, once they have broken a film, to continue to be effective they need to be transported to the next film. We show, for the first time, that buoyancy has an important part in the transport of the antifoam particles. In microgravity, where buoyancy and gravitational drainage are strongly slowed down, diffusion leads to poor antifoam performance. The foam is stable for the duration of the experiment, whereas on Earth the foam starts to disappear immediately. Indeed, microgravity renders highly efficient antifoam practically useless. Nature Publishing Group 2015-05-27 /pmc/articles/PMC5515500/ /pubmed/28725710 http://dx.doi.org/10.1038/npjmgrav.2015.4 Text en Copyright © 2015 Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Brief Communication Yazhgur, Pavel Langevin, Dominique Caps, Hervé Klein, Vincent Rio, Emmanuelle Salonen, Anniina How antifoams act: a microgravity study |
title | How antifoams act: a microgravity study |
title_full | How antifoams act: a microgravity study |
title_fullStr | How antifoams act: a microgravity study |
title_full_unstemmed | How antifoams act: a microgravity study |
title_short | How antifoams act: a microgravity study |
title_sort | how antifoams act: a microgravity study |
topic | Brief Communication |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5515500/ https://www.ncbi.nlm.nih.gov/pubmed/28725710 http://dx.doi.org/10.1038/npjmgrav.2015.4 |
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