Two-step micro cellular foaming of amorphous polymers in supercritical CO2
| dc.rights.license | open | |
| hal.structure.identifier | Laboratoire de Chimie des Polymères Organiques [LCPO] | |
| dc.contributor.author | REGLERO RUIZ, José Antonio | |
| hal.structure.identifier | IUT, Dept Sci & Genie Mat [Univ Bordeaux] | |
| dc.contributor.author | TALLON, Jean-Marc | |
| hal.structure.identifier | IUT, Dept Sci & Genie Mat [Univ Bordeaux] | |
| dc.contributor.author | PEDROS, Matthieu | |
| hal.structure.identifier | Laboratoire de Chimie des Polymères Organiques [LCPO] | |
| hal.structure.identifier | Team 1 LCPO : Polymerization Catalyses & Engineering | |
| dc.contributor.author | DUMON, Michel | |
| dc.date.accessioned | 2020 | |
| dc.date.available | 2020 | |
| dc.date.issued | 2011 | |
| dc.identifier.issn | 0896-8446 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/20343 | |
| dc.description.abstractEn | Microcellular foaming of amorphous rigid polymers, polymethylmethacrylate (PMMA) and polystyrene (PS) was studied in supercritical CO2 (ScCO2) in the presence of several types of additives, such as triblock ( styrene-co-butadiene-co-methylmethactylate, SBM and methylmethacrylate-co-butylacrylate-co-methylmethacrylate, MAM) terpolymers. This work is focused in the two-step foaming process, in which the sample is previously saturated under ScCO2 being expanded in a second step out of the CO2 vessel (e.g. in a hot oil bath) where foaming is initiated by the change of temperature near or above the glass transition temperature of the glass/polymer glassy system. Samples were saturated under high pressures of CO2 (300 bar), at room temperature, for 16 h, followed by a quenching at a high depressurization rate (150 bar/min). In the last step, foaming was carried out at different temperatures (from 80 degrees C to 140 degrees C) and different foaming times (from 10 s to 120s). It was found that cellular structures were controlled selecting either the additive type or the foaming conditions. Cell sizes are ranging from 0.3 mu m to 300 mu m, and densities from 0.50 g/cm(3) to 1 g/cm(3) depending on the polymers considered. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Nanostructured | |
| dc.subject.en | Supercritical carbon dioxide | |
| dc.subject.en | Microcellular foaming | |
| dc.subject.en | Amorphous polymers | |
| dc.subject.en | Additives | |
| dc.title.en | Two-step micro cellular foaming of amorphous polymers in supercritical CO2 | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.supflu.2011.01.011 | |
| dc.subject.hal | Chimie/Polymères | |
| bordeaux.journal | Journal of Supercritical Fluids | |
| bordeaux.page | 87-94 | |
| bordeaux.volume | 57 | |
| bordeaux.hal.laboratories | Laboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629 | * |
| bordeaux.issue | 1 | |
| bordeaux.institution | Bordeaux INP | |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00956648 | |
| hal.version | 1 | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00956648v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Supercritical%20Fluids&rft.date=2011&rft.volume=57&rft.issue=1&rft.spage=87-94&rft.epage=87-94&rft.eissn=0896-8446&rft.issn=0896-8446&rft.au=REGLERO%20RUIZ,%20Jos%C3%A9%20Antonio&TALLON,%20Jean-Marc&PEDROS,%20Matthieu&DUMON,%20Michel&rft.genre=article |
Fichier(s) constituant ce document
| Fichiers | Taille | Format | Vue |
|---|---|---|---|
|
Il n'y a pas de fichiers associés à ce document. |
|||