On the bubble-surfactant interaction

Stepišnik Perdih, Tadej (author), Širok, Brane (author), Dular, Matevž (author)

Surfactants play an important role in numerous chemical applications. Their effects on dispersion systems, as emulsions and colloids, are vastly studied. Yet, the dissolution (kinetics) of surfactants themselves has not received much scientific attention, despite the high implications for industrial applications. Nevertheless one can acknowledge the rapid growth of new technologies which are being considered to enhance various chemical processes, one being cavitatio-the rapid growth and collapse of vapor bubbles, which results in the formation of shockwaves, streaming, free radicals, high local temperatures etc. In this paper, we investigate the influence of cavitation on the dissolution rate of Sodium Dodecyl Benzene Sulfonate. Using a high-speed camera, we determined the physics of the dissolution process. We have shown that the presence of cavitation greatly enhances the dissolution rate of surfactant in water through a process comparable to cavitation erosion. Finally, based on our findings, we also present the newly developed cavitation reactor, which could be potentially used for enhancing the process of washing powder dissolution in home appliances.

• Language: English
• Keywords: cavitation, surfactant, SDBS, dissolution, high-speed camera, ultrasound, bubbles
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Author Accepted Manuscript
• Year: 2017
• Number of pages: Str. 198-204
• Numbering: Vol. 121
• PID: 20.500.12556/RUL-126415
• UDC: 532.528(045)
• ISSN on article: 0255-2701
• DOI: 10.1016/j.cep.2017.08.016
• COBISS.SI-ID: 15670555

Copyright

Zapis Sherpa Romeo za revijo Chemical Engineering and Processing: Process Intensification https://v2.sherpa.ac.uk/id/publication/16066 : licenca za recenzirani rokopis (Accepted Version) je CC BY-NC-ND 4.0. (Datum opombe: 15. 3. 2023)

• Publication date in RUL: 21.04.2021

Record is a part of a journal

• Title: Chemical engineering & processing: process intensification
• Shortened title: Chem. eng. process.
• Publisher: Elsevier
• ISSN: 0255-2701
• COBISS.SI-ID: 5825287

Licences

• License: CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
• Link: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Description: The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.

Secondary language

• Language: Slovenian
• Keywords: kavitacija, surfaktant, SDBS, raztapljanje, ultrazvok, mehurčki