Processing Compostable PLA/Organoclay Bionanocomposite Foams by Supercritical CO2 Foaming for Sustainable Food Packaging

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dc.contributor.authorFaba, Simónes_ES
dc.contributor.authorArrieta, Marina P.es_ES
dc.contributor.authorAgüero, Ángeles_ES
dc.contributor.authorTorres, Alejandraes_ES
dc.contributor.authorRomero, Julioes_ES
dc.contributor.authorRojas, Adriánes_ES
dc.contributor.authorGalotto, María Josées_ES
dc.contributor.funderEuropean Commissiones_ES
dc.contributor.funderMinisterio de Universidadeses_ES
dc.contributor.funderAgencia Estatal de Investigaciónes_ES
dc.contributor.funderEuropean Regional Development Fundes_ES
dc.contributor.funderAgencia Nacional de Investigación y Desarrollo de Chilees_ES
dc.contributor.funderFondo Nacional de Desarrollo Científico y Tecnológico, Chilees_ES
dc.date.accessioned2024-06-04T18:08:32Z
dc.date.available2024-06-04T18:08:32Z
dc.date.issued2022-10es_ES
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.en_EN
dc.description.accrualMethodSes_ES
dc.description.bibliographicCitationFaba, 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/polym14204394es_ES
dc.description.issue20es_ES
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dc.description.sponsorshipThis 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.description.volume14es_ES
dc.identifier.doi10.3390/polym14204394es_ES
dc.identifier.eissn2073-4360es_ES
dc.identifier.pmcidPMC9612032es_ES
dc.identifier.pmid36297972es_ES
dc.identifier.urihttps://riunet.upv.es/handle/10251/204702
dc.languageIngléses_ES
dc.publisherMDPI AGes_ES
dc.relation.ispartofPolymerses_ES
dc.relation.pasarelaS\482879es_ES
dc.relation.projectIDinfo: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.projectIDinfo:eu-repo/grantAgreement/FONDECYT// 12011301/es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/ANID//21200851/es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/ANID//75210123/es_ES
dc.relation.publisherversionhttps://doi.org/10.3390/polym14204394es_ES
dc.rightsReconocimiento (by)es_ES
dc.rights.accessRightsAbiertoes_ES
dc.subjectPLAes_ES
dc.subjectFoaminges_ES
dc.subjectFood packaginges_ES
dc.subjectNanocompositeses_ES
dc.subjectOrganoclayes_ES
dc.titleProcessing Compostable PLA/Organoclay Bionanocomposite Foams by Supercritical CO2 Foaming for Sustainable Food Packaginges_ES
dc.typeArtículoes_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dspace.entity.typePublication
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