Issue 44, 2024

Bubble dynamics manipulation in polymeric foaming

Abstract

The release of pressure from a high-pressure-stable polymer/gas solution is a common method for creating gas bubbles and forming foam with a typical polyhedral cell structure. We propose a new approach to control the foaming process by pausing the bubble growth at intermediate pressure before reaching ambient pressure. This allows us to control the growth of the bubbles and investigate various physical phenomena involved in polymer foaming, such as Ostwald ripening, bubble interactions, coalescence, and different bubble growth regimes. We conducted these studies in a model system PP/N2 by subjecting the solution to non trivial pressure histories. Our method will have an impact on the study of fundamental phenomena involved in foaming and their application in creating new materials.

Graphical abstract: Bubble dynamics manipulation in polymeric foaming

Supplementary files

Article information

Article type
Paper
Submitted
30 Aug 2024
Accepted
17 Oct 2024
First published
22 Oct 2024
This article is Open Access
Creative Commons BY license

Soft Matter, 2024,20, 8845-8854

Bubble dynamics manipulation in polymeric foaming

L. Miele, A. Abate, K. Taki and E. Di Maio, Soft Matter, 2024, 20, 8845 DOI: 10.1039/D4SM01040J

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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