Polymer Supercritical CO<sub>2</sub> Foaming under Peculiar Conditions: Laser and Ultrasound Implementation
The two-step batch foaming process of solid-state assisted by supercritical CO<sub>2</sub> 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...
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MDPI AG
2023-04-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/8/1968 |
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| author | Jennifer Andrea Villamil Jiménez Margaux Haurat Rayan Berriche Fabien Baillon Martial Sauceau Mattéo Chaussat Jean-Marc Tallon Andrzej Kusiak Michel Dumon |
| author_facet | Jennifer Andrea Villamil Jiménez Margaux Haurat Rayan Berriche Fabien Baillon Martial Sauceau Mattéo Chaussat Jean-Marc Tallon Andrzej Kusiak Michel Dumon |
| author_sort | Jennifer Andrea Villamil Jiménez |
| collection | DOAJ |
| description | The two-step batch foaming process of solid-state assisted by supercritical CO<sub>2</sub> 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<sub>2</sub> 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. |
| first_indexed | 2024-03-11T04:36:32Z |
| format | Article |
| id | doaj.art-b8947ff37316480c8eff4ed6db966318 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-11T04:36:32Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-b8947ff37316480c8eff4ed6db9663182023-11-17T21:03:07ZengMDPI AGPolymers2073-43602023-04-01158196810.3390/polym15081968Polymer Supercritical CO<sub>2</sub> Foaming under Peculiar Conditions: Laser and Ultrasound ImplementationJennifer Andrea Villamil Jiménez0Margaux Haurat1Rayan Berriche2Fabien Baillon3Martial Sauceau4Mattéo Chaussat5Jean-Marc Tallon6Andrzej Kusiak7Michel Dumon8Centre RAPSODEE, UMR CNRS 5302, IMT Mines Albi, Université de Toulouse, F-81013 Albi, FranceLaboratoire de Chimie des Polymères Organiques (LCPO), UMR 5629, Bordeaux INP/ENSCBP, University Bordeaux, CNRS, F-33607 Pessac, FranceLaboratoire de Chimie des Polymères Organiques (LCPO), UMR 5629, Bordeaux INP/ENSCBP, University Bordeaux, CNRS, F-33607 Pessac, FranceCentre RAPSODEE, UMR CNRS 5302, IMT Mines Albi, Université de Toulouse, F-81013 Albi, FranceCentre RAPSODEE, UMR CNRS 5302, IMT Mines Albi, Université de Toulouse, F-81013 Albi, FranceI2M Laboratory, UMR 5295, Bordeaux INP, University Bordeaux, CNRS, F-33400 Talence, FranceDépartement Science et Génie des Matériaux -SGM, IUT Institut Universitaire de Technologie, Université de Bordeaux, F-33170 Gradignan, FranceI2M Laboratory, UMR 5295, Bordeaux INP, University Bordeaux, CNRS, F-33400 Talence, FranceLaboratoire de Chimie des Polymères Organiques (LCPO), UMR 5629, Bordeaux INP/ENSCBP, University Bordeaux, CNRS, F-33607 Pessac, FranceThe two-step batch foaming process of solid-state assisted by supercritical CO<sub>2</sub> 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<sub>2</sub> 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.https://www.mdpi.com/2073-4360/15/8/1968polymerPMMAfoamingsc-CO<sub>2</sub>laserultrasound |
| spellingShingle | Jennifer Andrea Villamil Jiménez Margaux Haurat Rayan Berriche Fabien Baillon Martial Sauceau Mattéo Chaussat Jean-Marc Tallon Andrzej Kusiak Michel Dumon Polymer Supercritical CO<sub>2</sub> Foaming under Peculiar Conditions: Laser and Ultrasound Implementation Polymers polymer PMMA foaming sc-CO<sub>2</sub> laser ultrasound |
| title | Polymer Supercritical CO<sub>2</sub> Foaming under Peculiar Conditions: Laser and Ultrasound Implementation |
| title_full | Polymer Supercritical CO<sub>2</sub> Foaming under Peculiar Conditions: Laser and Ultrasound Implementation |
| title_fullStr | Polymer Supercritical CO<sub>2</sub> Foaming under Peculiar Conditions: Laser and Ultrasound Implementation |
| title_full_unstemmed | Polymer Supercritical CO<sub>2</sub> Foaming under Peculiar Conditions: Laser and Ultrasound Implementation |
| title_short | Polymer Supercritical CO<sub>2</sub> Foaming under Peculiar Conditions: Laser and Ultrasound Implementation |
| title_sort | polymer supercritical co sub 2 sub foaming under peculiar conditions laser and ultrasound implementation |
| topic | polymer PMMA foaming sc-CO<sub>2</sub> laser ultrasound |
| url | https://www.mdpi.com/2073-4360/15/8/1968 |
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