Tuning polylactic acid performance using green citrate plasticizers of varying chain lengths

Autores
Lazaro Hdez, Carlos; Stefani, Pablo Marcelo; Fenollar, Octavio; Garcia Sanoguera, David; Boronat, Teodomiro; Ivorra Martinez, Juan
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The addition of these plasticizers increases the chain mobility of PLA, enhancing its deformability while reducing both tensile strength and elastic modulus. Mechanical testing identified TEC at 20 wt% as the most effective formulation, achieving an elongation of 307 % and a reduction in tensile strength from 70.6 MPa (PLA) to 25.2 MPa. Formulations containing 10 wt% exhibited anti-plasticization effects, with a slight reduction in elongation from 3.4 % to 3.2 %. Thermal and thermomechanical analyses corroborated the plasticizing effect, demonstrating a decrease in glass transition temperature from 59.6 °C to 19.3 °C, which indicates sufficient chain mobility to attain a rubber-like state at room temperature. Enhanced mobility also promoted crystallization by modifying nucleation behavior, altering crystal growth dimensionality, and reducing the activation energy required. Shape memory characterization revealed a rapid initial recovery in plasticized samples; however, total recovery diminished at higher plasticizer contents near 20 %, while lower concentrations exhibited recovery rates close to 90 %. Due to their low molecular weight of the plasticizers, migration is anticipated, resulting in measurable weight loss when exposed to food simulants. This migration phenomenon is associated with an increase in free volume, which also contributes to the improved ductile properties observed in plasticized PLA.
Fil: Lazaro Hdez, Carlos. Universidad Politécnica de Valencia; España
Fil: Stefani, Pablo Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Fenollar, Octavio. Universidad Politécnica de Valencia; España
Fil: Garcia Sanoguera, David. Universidad Politécnica de Valencia; España
Fil: Boronat, Teodomiro. Universidad Politécnica de Valencia; España
Fil: Ivorra Martinez, Juan. Universidad Politécnica de Valencia; España
Materia
PLA
Plasticizers
Citrates
Ductility
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/282043
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Tuning polylactic acid performance using green citrate plasticizers of varying chain lengthsLazaro Hdez, CarlosStefani, Pablo MarceloFenollar, OctavioGarcia Sanoguera, DavidBoronat, TeodomiroIvorra Martinez, JuanPLAPlasticizersCitratesDuctilityhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The addition of these plasticizers increases the chain mobility of PLA, enhancing its deformability while reducing both tensile strength and elastic modulus. Mechanical testing identified TEC at 20 wt% as the most effective formulation, achieving an elongation of 307 % and a reduction in tensile strength from 70.6 MPa (PLA) to 25.2 MPa. Formulations containing 10 wt% exhibited anti-plasticization effects, with a slight reduction in elongation from 3.4 % to 3.2 %. Thermal and thermomechanical analyses corroborated the plasticizing effect, demonstrating a decrease in glass transition temperature from 59.6 °C to 19.3 °C, which indicates sufficient chain mobility to attain a rubber-like state at room temperature. Enhanced mobility also promoted crystallization by modifying nucleation behavior, altering crystal growth dimensionality, and reducing the activation energy required. Shape memory characterization revealed a rapid initial recovery in plasticized samples; however, total recovery diminished at higher plasticizer contents near 20 %, while lower concentrations exhibited recovery rates close to 90 %. Due to their low molecular weight of the plasticizers, migration is anticipated, resulting in measurable weight loss when exposed to food simulants. This migration phenomenon is associated with an increase in free volume, which also contributes to the improved ductile properties observed in plasticized PLA.Fil: Lazaro Hdez, Carlos. Universidad Politécnica de Valencia; EspañaFil: Stefani, Pablo Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Fenollar, Octavio. Universidad Politécnica de Valencia; EspañaFil: Garcia Sanoguera, David. Universidad Politécnica de Valencia; EspañaFil: Boronat, Teodomiro. Universidad Politécnica de Valencia; EspañaFil: Ivorra Martinez, Juan. Universidad Politécnica de Valencia; EspañaElsevier Science2025-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/282043Lazaro Hdez, Carlos; Stefani, Pablo Marcelo; Fenollar, Octavio; Garcia Sanoguera, David; Boronat, Teodomiro; et al.; Tuning polylactic acid performance using green citrate plasticizers of varying chain lengths; Elsevier Science; International Journal of Biological Macromolecules; 313; 6-2025; 1-140141-8130CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0141813025048044info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijbiomac.2025.144252info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-03-31T15:12:57Zoai:ri.conicet.gov.ar:11336/282043instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-03-31 15:12:58.069CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Tuning polylactic acid performance using green citrate plasticizers of varying chain lengths
title Tuning polylactic acid performance using green citrate plasticizers of varying chain lengths
spellingShingle Tuning polylactic acid performance using green citrate plasticizers of varying chain lengths
Lazaro Hdez, Carlos
PLA
Plasticizers
Citrates
Ductility
title_short Tuning polylactic acid performance using green citrate plasticizers of varying chain lengths
title_full Tuning polylactic acid performance using green citrate plasticizers of varying chain lengths
title_fullStr Tuning polylactic acid performance using green citrate plasticizers of varying chain lengths
title_full_unstemmed Tuning polylactic acid performance using green citrate plasticizers of varying chain lengths
title_sort Tuning polylactic acid performance using green citrate plasticizers of varying chain lengths
dc.creator.none.fl_str_mv Lazaro Hdez, Carlos
Stefani, Pablo Marcelo
Fenollar, Octavio
Garcia Sanoguera, David
Boronat, Teodomiro
Ivorra Martinez, Juan
author Lazaro Hdez, Carlos
author_facet Lazaro Hdez, Carlos
Stefani, Pablo Marcelo
Fenollar, Octavio
Garcia Sanoguera, David
Boronat, Teodomiro
Ivorra Martinez, Juan
author_role author
author2 Stefani, Pablo Marcelo
Fenollar, Octavio
Garcia Sanoguera, David
Boronat, Teodomiro
Ivorra Martinez, Juan
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv PLA
Plasticizers
Citrates
Ductility
topic PLA
Plasticizers
Citrates
Ductility
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The addition of these plasticizers increases the chain mobility of PLA, enhancing its deformability while reducing both tensile strength and elastic modulus. Mechanical testing identified TEC at 20 wt% as the most effective formulation, achieving an elongation of 307 % and a reduction in tensile strength from 70.6 MPa (PLA) to 25.2 MPa. Formulations containing 10 wt% exhibited anti-plasticization effects, with a slight reduction in elongation from 3.4 % to 3.2 %. Thermal and thermomechanical analyses corroborated the plasticizing effect, demonstrating a decrease in glass transition temperature from 59.6 °C to 19.3 °C, which indicates sufficient chain mobility to attain a rubber-like state at room temperature. Enhanced mobility also promoted crystallization by modifying nucleation behavior, altering crystal growth dimensionality, and reducing the activation energy required. Shape memory characterization revealed a rapid initial recovery in plasticized samples; however, total recovery diminished at higher plasticizer contents near 20 %, while lower concentrations exhibited recovery rates close to 90 %. Due to their low molecular weight of the plasticizers, migration is anticipated, resulting in measurable weight loss when exposed to food simulants. This migration phenomenon is associated with an increase in free volume, which also contributes to the improved ductile properties observed in plasticized PLA.
Fil: Lazaro Hdez, Carlos. Universidad Politécnica de Valencia; España
Fil: Stefani, Pablo Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Fenollar, Octavio. Universidad Politécnica de Valencia; España
Fil: Garcia Sanoguera, David. Universidad Politécnica de Valencia; España
Fil: Boronat, Teodomiro. Universidad Politécnica de Valencia; España
Fil: Ivorra Martinez, Juan. Universidad Politécnica de Valencia; España
description The addition of these plasticizers increases the chain mobility of PLA, enhancing its deformability while reducing both tensile strength and elastic modulus. Mechanical testing identified TEC at 20 wt% as the most effective formulation, achieving an elongation of 307 % and a reduction in tensile strength from 70.6 MPa (PLA) to 25.2 MPa. Formulations containing 10 wt% exhibited anti-plasticization effects, with a slight reduction in elongation from 3.4 % to 3.2 %. Thermal and thermomechanical analyses corroborated the plasticizing effect, demonstrating a decrease in glass transition temperature from 59.6 °C to 19.3 °C, which indicates sufficient chain mobility to attain a rubber-like state at room temperature. Enhanced mobility also promoted crystallization by modifying nucleation behavior, altering crystal growth dimensionality, and reducing the activation energy required. Shape memory characterization revealed a rapid initial recovery in plasticized samples; however, total recovery diminished at higher plasticizer contents near 20 %, while lower concentrations exhibited recovery rates close to 90 %. Due to their low molecular weight of the plasticizers, migration is anticipated, resulting in measurable weight loss when exposed to food simulants. This migration phenomenon is associated with an increase in free volume, which also contributes to the improved ductile properties observed in plasticized PLA.
publishDate 2025
dc.date.none.fl_str_mv 2025-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/282043
Lazaro Hdez, Carlos; Stefani, Pablo Marcelo; Fenollar, Octavio; Garcia Sanoguera, David; Boronat, Teodomiro; et al.; Tuning polylactic acid performance using green citrate plasticizers of varying chain lengths; Elsevier Science; International Journal of Biological Macromolecules; 313; 6-2025; 1-14
0141-8130
CONICET Digital
CONICET
url http://hdl.handle.net/11336/282043
identifier_str_mv Lazaro Hdez, Carlos; Stefani, Pablo Marcelo; Fenollar, Octavio; Garcia Sanoguera, David; Boronat, Teodomiro; et al.; Tuning polylactic acid performance using green citrate plasticizers of varying chain lengths; Elsevier Science; International Journal of Biological Macromolecules; 313; 6-2025; 1-14
0141-8130
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0141813025048044
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijbiomac.2025.144252
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.822162

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