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Foam formation by compression/decompression cycle of soft porous media

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posted on 11.06.2021, 10:28 by Phillip JohnsonPhillip Johnson, Mauro Vaccaro, Victor Starov, Anna TrybalaAnna Trybala
A theory of the amount of foam produced by compression/decompression cycles of a soft porous media is developed. The amount of foam produced was found to be dependent on both the amount of surfactant within the media and the minimum separation between the plates of the compression device. The latter is determined by the mechanical properties of the soft media. The theory also shows the importance of the decompression of the media as this is the mechanism of where the air penetrates into the soft porous material. The accumulated air is used during the compression stage for foam formation. The theoretically predicted values of foam mass are found to have good agreement with experimental observations, which validates the theory predictions. The theory also predicts independence of the foam produced in terms of the frequency of compression/decompression cycles, which agrees with our experimental observations.

Funding

This research was supported by MULTIFLOW and CoWet EU grants, PASTA, MAP EVAPORATION European Space and Proctor & Gamble, Brussels.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Published in

Colloids and Interfaces

Volume

4

Issue

3

Publisher

MDPI

Version

VoR (Version of Record)

Rights holder

© The Authors

Publisher statement

This is an Open Access Article. It is published by MDPI under the Creative Commons Attribution 4.0 International Licence (CC BY 4.0). Full details of this licence are available at: https://creativecommons.org/licenses/by/4.0/

Acceptance date

30/07/2020

Publication date

2020-07-31

Copyright date

2020

eISSN

2504-5377

Language

en

Depositor

Deposit date: 11 June 2021

Article number

31

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