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Polymer Supercritical CO(2) Foaming under Peculiar Conditions: Laser and Ultrasound Implementation

The two-step batch foaming process of solid-state assisted by supercritical CO(2) is a versatile technique for the foaming of polymers. In this work, it was assisted by an out-of-autoclave technology: either using lasers or ultrasound (US). Laser-aided foaming was only tested in the preliminary expe...

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Autores principales: Villamil Jiménez, Jennifer Andrea, Haurat, Margaux, Berriche, Rayan, Baillon, Fabien, Sauceau, Martial, Chaussat, Mattéo, Tallon, Jean-Marc, Kusiak, Andrzej, Dumon, Michel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10143122/
https://www.ncbi.nlm.nih.gov/pubmed/37112115
http://dx.doi.org/10.3390/polym15081968
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author Villamil Jiménez, Jennifer Andrea
Haurat, Margaux
Berriche, Rayan
Baillon, Fabien
Sauceau, Martial
Chaussat, Mattéo
Tallon, Jean-Marc
Kusiak, Andrzej
Dumon, Michel
author_facet Villamil Jiménez, Jennifer Andrea
Haurat, Margaux
Berriche, Rayan
Baillon, Fabien
Sauceau, Martial
Chaussat, Mattéo
Tallon, Jean-Marc
Kusiak, Andrzej
Dumon, Michel
author_sort Villamil Jiménez, Jennifer Andrea
collection PubMed
description The two-step batch foaming process of solid-state assisted by supercritical CO(2) is a versatile technique for the foaming of polymers. In this work, it was assisted by an out-of-autoclave technology: either using lasers or ultrasound (US). Laser-aided foaming was only tested in the preliminary experiments; most of the work involved US. Foaming was carried out on bulk thick samples (PMMA). The effect of ultrasound on the cellular morphology was a function of the foaming temperature. Thanks to US, cell size was slightly decreased, cell density was increased, and interestingly, thermal conductivity was shown to decrease. The effect on the porosity was more remarkable at high temperatures. Both techniques provided micro porosity. This first investigation of these two potential methods for the assistance of supercritical CO(2) batch foaming opens the door to new investigations. The different properties of the ultrasound method and its effects will be studied in an upcoming publication.
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spelling pubmed-101431222023-04-29 Polymer Supercritical CO(2) Foaming under Peculiar Conditions: Laser and Ultrasound Implementation Villamil Jiménez, Jennifer Andrea Haurat, Margaux Berriche, Rayan Baillon, Fabien Sauceau, Martial Chaussat, Mattéo Tallon, Jean-Marc Kusiak, Andrzej Dumon, Michel Polymers (Basel) Article The two-step batch foaming process of solid-state assisted by supercritical CO(2) is a versatile technique for the foaming of polymers. In this work, it was assisted by an out-of-autoclave technology: either using lasers or ultrasound (US). Laser-aided foaming was only tested in the preliminary experiments; most of the work involved US. Foaming was carried out on bulk thick samples (PMMA). The effect of ultrasound on the cellular morphology was a function of the foaming temperature. Thanks to US, cell size was slightly decreased, cell density was increased, and interestingly, thermal conductivity was shown to decrease. The effect on the porosity was more remarkable at high temperatures. Both techniques provided micro porosity. This first investigation of these two potential methods for the assistance of supercritical CO(2) batch foaming opens the door to new investigations. The different properties of the ultrasound method and its effects will be studied in an upcoming publication. MDPI 2023-04-21 /pmc/articles/PMC10143122/ /pubmed/37112115 http://dx.doi.org/10.3390/polym15081968 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Villamil Jiménez, Jennifer Andrea
Haurat, Margaux
Berriche, Rayan
Baillon, Fabien
Sauceau, Martial
Chaussat, Mattéo
Tallon, Jean-Marc
Kusiak, Andrzej
Dumon, Michel
Polymer Supercritical CO(2) Foaming under Peculiar Conditions: Laser and Ultrasound Implementation
title Polymer Supercritical CO(2) Foaming under Peculiar Conditions: Laser and Ultrasound Implementation
title_full Polymer Supercritical CO(2) Foaming under Peculiar Conditions: Laser and Ultrasound Implementation
title_fullStr Polymer Supercritical CO(2) Foaming under Peculiar Conditions: Laser and Ultrasound Implementation
title_full_unstemmed Polymer Supercritical CO(2) Foaming under Peculiar Conditions: Laser and Ultrasound Implementation
title_short Polymer Supercritical CO(2) Foaming under Peculiar Conditions: Laser and Ultrasound Implementation
title_sort polymer supercritical co(2) foaming under peculiar conditions: laser and ultrasound implementation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10143122/
https://www.ncbi.nlm.nih.gov/pubmed/37112115
http://dx.doi.org/10.3390/polym15081968
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