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Tailoring the Properties of Thermo-Compressed Polylactide Films for Food Packaging Applications by Individual and Combined Additions of Lactic Acid Oligomer and Halloysite Nanotubes

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Tailoring the Properties of Thermo-Compressed Polylactide Films for Food Packaging Applications by Individual and Combined Additions of Lactic Acid Oligomer and Halloysite Nanotubes

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dc.contributor.author Rojas-Lema, Sandra es_ES
dc.contributor.author Quiles-Carrillo, Luis es_ES
dc.contributor.author Garcia-Garcia, Daniel es_ES
dc.contributor.author Melendez-Rodriguez, Beatriz es_ES
dc.contributor.author Balart, Rafael es_ES
dc.contributor.author Torres-Giner, S. es_ES
dc.date.accessioned 2024-04-12T18:04:36Z
dc.date.available 2024-04-12T18:04:36Z
dc.date.issued 2020-04-02 es_ES
dc.identifier.uri http://hdl.handle.net/10251/203461
dc.description.abstract [EN] In this work, films of polylactide (PLA) prepared by extrusion and thermo-compression were plasticized with oligomer of lactic acid (OLA) at contents of 5, 10, and 20 wt%. The PLA sample containing 20 wt% of OLA was also reinforced with 3, 6, and 9 parts per hundred resin (phr) of halloysite nanotubes (HNTs) to increase the mechanical strength and thermal stability of the films. Prior to melt mixing, ultrasound-assisted dispersion of the nanoclays in OLA was carried out at 100 ºC to promote the HNTs dispersion in PLA and the resultant films were characterized with the aim to ascertain their potential in food packaging. It was observed that either the individual addition of OLA or combined with 3 phr of HNTs did not significantly affect the optical properties of the PLA films, whereas higher nanoclay contents reduced lightness and induced certain green and blue tonalities. The addition of 20 wt% of OLA increased ductility of the PLA film by nearly 75% and also decreased the glass transition temperature (Tg) by over 18 ºC. The incorporation of 3 phr of HNTs into the OLA-containing PLA films delayed thermal degradation by 7 ºC and additionally reduced the permeabilities to water and limonene vapors by approximately 8% and 47%, respectively. Interestingly, the highest barrier performance was attained for the unfilled PLA film plasticized with 10 wt% of OLA, which was attributed to a crystallinity increase and an effect of ¿antiplasticization¿. However, loadings of 6 and 9 phr of HNTs resulted in the formation of small aggregates that impaired the performance of the blend films. The here-attained results demonstrates that the properties of ternary systems of PLA/OLA/HNTs can be tuned when the plasticizer and nanofiller contents are carefully chosen and the resultant nanocomposite films can be proposed as a bio-sourced alternative for compostable packaging applications. es_ES
dc.description.sponsorship This research work was funded by the Spanish Ministry of Science and Innovation (MICI) project numbers RTI2018-097249-B-C21 and MAT2017-84909-C2-2-R. S.R.-L is a recipient of a Santiago Grisolia grant from Generalitat Valenciana (GVA) (GRISOLIAP/2019/132). L.Q.-C. wants to thank GVA for his FPI grant (ACIF/2016/182) and the Spanish Ministry of Education, Culture, and Sports (MECD) for his FPU grant (FPU15/03812), while D.G.-G. also acknowledges GVA for his postdoctoral contract (APOSTD/2019/201). B.M.-R. and S.T.-G. acknowledge MICIU for her FPI grant (BES-2016-077972) and his Juan de la Cierva¿Incorporación contract (IJCI-2016-29675), respectively. es_ES
dc.language Inglés es_ES
dc.publisher MDPI AG es_ES
dc.relation.ispartof Molecules es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject PLA es_ES
dc.subject OLA es_ES
dc.subject HNTs es_ES
dc.subject Ultrasound-assisted dispersion es_ES
dc.subject Nanocomposites es_ES
dc.subject Food packaging es_ES
dc.subject.classification CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA es_ES
dc.title Tailoring the Properties of Thermo-Compressed Polylactide Films for Food Packaging Applications by Individual and Combined Additions of Lactic Acid Oligomer and Halloysite Nanotubes es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3390/molecules25081976 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-84909-C2-2-R/ES/PROCESADO Y OPTIMIZACION DE MATERIALES AVANZADOS DERIVADOS DE ESTRUCTURAS PROTEICAS Y COMPONENTES LIGNOCELULOSICOS/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-097249-B-C21/ES/ENVASE ACTIVO MULTICAPA TERMOCONFORMABLE DE ALTA BARRERA BASADO EN BIOECONOMIA CIRCULAR/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/Agencia Estatal de Investigación//IJCI-2016-29675//AYUDA CONTRATO JUAN DE LA CIERVA-INCORPORACION-TORRES GINER/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GVA//APOSTD%2F2019%2F201//CONTRATO POSTDOCTORAL GVA-GARCIA GARCIA. PROYECTO: VALORIZACION DE SUBPRODUCTOS OBTENIDOS A PARTIR DE RESIDUOS AGROFORESTALES/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GVA//GRISOLIAP%2F2019%2F132//AYUDA SANTIAGO GRISOLIA PROYECTO DESARROLLO DE MEZCLAS DE BIOPOLIMEROS/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GVA//ACIF%2F2016%2F182//AYUDA CONSELLERIA PARA LA CONTRATACION DE PERSONAL INVESTIGADOR EN FORMACION DE CARACTER PREDOCTORAL-QUILES CARRILLO (DESARROLLO DE MEZCLAS DE BIOPOLIMEROS PARA INCORPORACION DE PRINCIPIOS ACTIVOS MEDIANTE TECNICAS DE ELECTROSPINNING)/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MECD//FPU15%2F03812//FPU15/03812/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MCIU//BES-2016-077972/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Politécnica Superior de Alcoy - Escola Politècnica Superior d'Alcoi es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario de Ingeniería de Alimentos para el Desarrollo - Institut Universitari d'Enginyeria d'Aliments per al Desenvolupament es_ES
dc.description.bibliographicCitation Rojas-Lema, S.; Quiles-Carrillo, L.; Garcia-Garcia, D.; Melendez-Rodriguez, B.; Balart, R.; Torres-Giner, S. (2020). Tailoring the Properties of Thermo-Compressed Polylactide Films for Food Packaging Applications by Individual and Combined Additions of Lactic Acid Oligomer and Halloysite Nanotubes. Molecules. 25(8). https://doi.org/10.3390/molecules25081976 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.3390/molecules25081976 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 25 es_ES
dc.description.issue 8 es_ES
dc.identifier.eissn 1420-3049 es_ES
dc.identifier.pmid 32340300 es_ES
dc.identifier.pmcid PMC7221984 es_ES
dc.relation.pasarela S\408383 es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder Agencia Estatal de Investigación es_ES
dc.contributor.funder Ministerio de Educación, Cultura y Deporte es_ES
dc.contributor.funder Ministerio de Ciencia, Innovación y Universidades es_ES


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