Combined Effects of Nanoparticles and Surfactants upon Foam Stability
| Autor: | Abdulkadir Osman, Mohammad Javad Shojaei, Nima Shokri, Yves Méheust, Paul Grassia |
|---|---|
| Přispěvatelé: | Department of Earth Science and Engineering [Imperial College London], Imperial College London, Géosciences Rennes (GR), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), University of Manchester [Manchester], University of Strathclyde [Glasgow], Hamburg University of Technology (TUHH), University of Manchester, Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
General Chemical Engineering Bubble Nanoparticle 02 engineering and technology Stability (probability) Industrial and Manufacturing Engineering 020401 chemical engineering Pulmonary surfactant Gravitational drainage [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry Surfactant Gaseous diffusion Bubble coalescence 0204 chemical engineering [SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology TP155 Applied Mathematics Cationic polymerization Compatibility (geochemistry) General Chemistry 021001 nanoscience & nanotechnology Diffusional coarsening Chemical engineering 13. Climate action Foam stability 0210 nano-technology [CHIM.OTHE]Chemical Sciences/Other |
| Zdroj: | Chemical Engineering Science Chemical Engineering Science, Elsevier, 2021, 238, pp.116601. ⟨10.1016/j.ces.2021.116601⟩ Chemical Engineering Science, 2021, 238, pp.116601. ⟨10.1016/j.ces.2021.116601⟩ |
| ISSN: | 0009-2509 |
| Popis: | International audience; We investigate effects of surfactants with different charges (anionic, cationic, and non-ionic) on foam stability in the presence of charge-stabilized silica (SiO2) nanoparticles. Toward this aim, a comprehensive series of experiments on a Hele-Shaw cell and a foam column is conducted at bubble and bulk-scale respectively, that is, investigating phenomenologies of foam coarsening separately by gas diffusion and bubble coalescence, and by gravitational drainage. Our results show nanoparticles, despite their ability to position themselves at liquid-gas interfaces and thus limit the resulting surface tension coefficient, do not necessarily have a positive effect on foam stability; the nature and magnitude of this effect depends strongly on the nature of the surfactant, its concentration and the concentration of nanoparticles. In less stable systems, significant coarsening occurs. Both results from bubble-scale and the bulk-scale experiments suggest that compatibility experiments are pre-requisite to foam stability analysis to test the compatibility between surfactants and nanoparticles. |
| Databáze: | OpenAIRE |
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