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dc.contributor.author | Faba, Simón | es_ES |
dc.contributor.author | Arrieta, Marina P. | es_ES |
dc.contributor.author | Agüero, Ángel | es_ES |
dc.contributor.author | Torres, Alejandra | es_ES |
dc.contributor.author | Romero, Julio | es_ES |
dc.contributor.author | Rojas, Adrián | es_ES |
dc.contributor.author | Galotto, María José | es_ES |
dc.date.accessioned | 2024-06-04T18:08:32Z | |
dc.date.available | 2024-06-04T18:08:32Z | |
dc.date.issued | 2022-10 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/204702 | |
dc.description.abstract | [EN] This article proposes a foaming method using supercritical carbon dioxide (scCO(2)) to obtain compostable bionanocomposite foams based on PLA and organoclay (C30B) where this bionanocomposite was fabricated by a previous hot melt extrusion step. Neat PLA films and PLA/C30B films (1, 2, and 3 wt.%) were obtained by using a melt extrusion process followed by a film forming process obtaining films with thicknesses between 500 and 600 mu m. Films were further processed into foams in a high-pressure cell with scCO(2) under constant conditions of pressure (25 MPa) and temperature (130 degrees C) for 30 min. Bionanocomposite PLA foams evidenced a closed cell and uniform cell structure; however, neat PLA presented a poor cell structure and thick cell walls. The thermal stability was significantly enhanced in the bionanocomposite foam samples by the good dispersion of nanoclays due to scCO(2), as demonstrated by X-ray diffraction analysis. The bionanocomposite foams showed improved overall mechanical performance due to well-dispersed nanoclays promoting increased interfacial adhesion with the polymeric matrix. The water uptake behavior of bionanocomposite foams showed that they practically did not absorb water during the first week of immersion in water. Finally, PLA foams were disintegrated under standard composting conditions at higher rates than PLA films, showing their sustainable character. Thus, PLA bionanocomposite foams obtained by batch supercritical foaming seem to be a sustainable option to replace non-biodegradable expanded polystyrene, and they represent a promising alternative to be considered in applications such as food packaging and other products. | es_ES |
dc.description.sponsorship | This research was funded by the National Commission for Scientific and Technological Research (ANID) through the Project Fondecyt Regular 12011301 and by the Spanish Ministry of Science and Innovation (MICINN) through the PID-AEI project (grant number PID2021-123753NAC32) funded by MCIN/AEI/10.13039/501100011033 and by ERDF "A way of making Europe" by the "European Union". Ph.D. student Simon Faba gratefully acknowledges ANID for its financial support from the National Doctoral Scholarship with the grant number 21200851 as well as with the research mobility fellow (number 75210123). Ph.D. Angel Aguero acknowledges the Margarita Salas postdoctoral grant from the Ministerio de Universidades, Spain, funded by the European Union-Next Generation EU. | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | MDPI AG | es_ES |
dc.relation.ispartof | Polymers | es_ES |
dc.rights | Reconocimiento (by) | es_ES |
dc.subject | PLA | es_ES |
dc.subject | Foaming | es_ES |
dc.subject | Food packaging | es_ES |
dc.subject | Nanocomposites | es_ES |
dc.subject | Organoclay | es_ES |
dc.title | Processing Compostable PLA/Organoclay Bionanocomposite Foams by Supercritical CO2 Foaming for Sustainable Food Packaging | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.3390/polym14204394 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-123753NA-C32/ES/ESTUDIO DE LA OBTENCION DE REFUERZOS ACTIVOS PARA BIOPOLIMEROS EN LA ECONOMIA CIRCULAR/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/FONDECYT// 12011301/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/ANID//21200851/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/ANID//75210123/ | es_ES |
dc.rights.accessRights | Abierto | es_ES |
dc.description.bibliographicCitation | Faba, S.; Arrieta, MP.; Agüero, Á.; Torres, A.; Romero, J.; Rojas, A.; Galotto, MJ. (2022). Processing Compostable PLA/Organoclay Bionanocomposite Foams by Supercritical CO2 Foaming for Sustainable Food Packaging. Polymers. 14(20). https://doi.org/10.3390/polym14204394 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.3390/polym14204394 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 14 | es_ES |
dc.description.issue | 20 | es_ES |
dc.identifier.eissn | 2073-4360 | es_ES |
dc.identifier.pmid | 36297972 | es_ES |
dc.identifier.pmcid | PMC9612032 | es_ES |
dc.relation.pasarela | S\482879 | es_ES |
dc.contributor.funder | European Commission | es_ES |
dc.contributor.funder | Ministerio de Universidades | es_ES |
dc.contributor.funder | Agencia Estatal de Investigación | es_ES |
dc.contributor.funder | European Regional Development Fund | es_ES |
dc.contributor.funder | Agencia Nacional de Investigación y Desarrollo de Chile | es_ES |
dc.contributor.funder | Fondo Nacional de Desarrollo Científico y Tecnológico, Chile | es_ES |