Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolization

[EN] Poly(lactic acid) (PLA) and poly(vinyl alcohol) (PVA) present complementary barrier properties, and their combination in multilayer assemblies (laminates) could provide materials with more effective barrier capacity for food packaging purposes. However, their low chemical affinity compromises a...

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Autores: Tampau, Alina, Vicente, Antonio A., González Martínez, María Consuelo|||0000-0001-9993-8303, Chiralt, Amparo|||0000-0003-1134-8144
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/165954
Acceso en línea:https://riunet.upv.es/handle/10251/165954
Access Level:acceso abierto
Palabra clave:Aminolisation
Surface activation
Poly(lactic acid)
Poly(vinyl alcohol)
Carvacrol
Bilayer assembly
TECNOLOGIA DE ALIMENTOS
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spelling Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolizationTampau, AlinaVicente, Antonio A.González Martínez, María Consuelo|||0000-0001-9993-8303Chiralt, Amparo|||0000-0003-1134-8144AminolisationSurface activationPoly(lactic acid)Poly(vinyl alcohol)CarvacrolBilayer assemblyTECNOLOGIA DE ALIMENTOS[EN] Poly(lactic acid) (PLA) and poly(vinyl alcohol) (PVA) present complementary barrier properties, and their combination in multilayer assemblies (laminates) could provide materials with more effective barrier capacity for food packaging purposes. However, their low chemical affinity compromises adequate polymer adhesion. Surface free energy modification of thermo-processed PLA films through treatment with 1,6-hexanediamine was used to enhance adhesion with polar PVA aqueous solutions. Treatments of 1 and 3 min increased the polar component of the solid surface tension, while treatments above 10 min provoked a corrosive effect in the films' structure. Extensibility analyses of PVA solutions loaded with carvacrol (15 wt.%) and different Tween 85 ratios on PLA-activated surfaces allowed the selection of the 1-min aminolysed surface for obtaining PLA-PVA bilayers, by casting PVA solutions on the PLA films. This study revealed that despite aminolisation enhancing the PLA surface affinity for aqueous PVA solutions, casting-obtained bilayers presented limited oxygen barrier effectiveness due to heterogeneous thickness of PVA layer in the laminates.The authors acknowledge the financial support provided by the Ministerio de Economia y Competitividad (MINECO) of Spain (project AGL2016-76699-R). The author A. Tampau thanks MINECO for the pre-doctoral research grant #BES-2014-068100.Springer-VerlagDepartamento de Tecnología de AlimentosInstituto Universitario de Ingeniería de Alimentos (FoodUPV)Escuela Técnica Superior de Ingeniería Agronómica y del Medio NaturalMinisterio de Economía y CompetitividadRepositorio Institucional de la Universitat Politècnica de València Riunet20202020-07-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/165954reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 BES-2014-068100 BES-2014-068100Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 AGL2016-76699-R Materiales Biodegradables Multicapa de Alta Barrera para el Envasado Activo de Alimentosopen accesshttp://purl.org/coar/access_right/c_abf2Reserva de todos los derechoshttp://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/1659542026-06-13T07:49:27Z
dc.title.none.fl_str_mv Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolization
title Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolization
spellingShingle Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolization
Tampau, Alina
Aminolisation
Surface activation
Poly(lactic acid)
Poly(vinyl alcohol)
Carvacrol
Bilayer assembly
TECNOLOGIA DE ALIMENTOS
title_short Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolization
title_full Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolization
title_fullStr Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolization
title_full_unstemmed Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolization
title_sort Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolization
dc.creator.none.fl_str_mv Tampau, Alina
Vicente, Antonio A.
González Martínez, María Consuelo|||0000-0001-9993-8303
Chiralt, Amparo|||0000-0003-1134-8144
author Tampau, Alina
author_facet Tampau, Alina
Vicente, Antonio A.
González Martínez, María Consuelo|||0000-0001-9993-8303
Chiralt, Amparo|||0000-0003-1134-8144
author_role author
author2 Vicente, Antonio A.
González Martínez, María Consuelo|||0000-0001-9993-8303
Chiralt, Amparo|||0000-0003-1134-8144
author2_role author
author
author
dc.contributor.none.fl_str_mv Departamento de Tecnología de Alimentos
Instituto Universitario de Ingeniería de Alimentos (FoodUPV)
Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural
Ministerio de Economía y Competitividad
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Aminolisation
Surface activation
Poly(lactic acid)
Poly(vinyl alcohol)
Carvacrol
Bilayer assembly
TECNOLOGIA DE ALIMENTOS
topic Aminolisation
Surface activation
Poly(lactic acid)
Poly(vinyl alcohol)
Carvacrol
Bilayer assembly
TECNOLOGIA DE ALIMENTOS
description [EN] Poly(lactic acid) (PLA) and poly(vinyl alcohol) (PVA) present complementary barrier properties, and their combination in multilayer assemblies (laminates) could provide materials with more effective barrier capacity for food packaging purposes. However, their low chemical affinity compromises adequate polymer adhesion. Surface free energy modification of thermo-processed PLA films through treatment with 1,6-hexanediamine was used to enhance adhesion with polar PVA aqueous solutions. Treatments of 1 and 3 min increased the polar component of the solid surface tension, while treatments above 10 min provoked a corrosive effect in the films' structure. Extensibility analyses of PVA solutions loaded with carvacrol (15 wt.%) and different Tween 85 ratios on PLA-activated surfaces allowed the selection of the 1-min aminolysed surface for obtaining PLA-PVA bilayers, by casting PVA solutions on the PLA films. This study revealed that despite aminolisation enhancing the PLA surface affinity for aqueous PVA solutions, casting-obtained bilayers presented limited oxygen barrier effectiveness due to heterogeneous thickness of PVA layer in the laminates.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-07-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/165954
url https://riunet.upv.es/handle/10251/165954
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 BES-2014-068100 BES-2014-068100
Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 AGL2016-76699-R Materiales Biodegradables Multicapa de Alta Barrera para el Envasado Activo de Alimentos
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer-Verlag
publisher.none.fl_str_mv Springer-Verlag
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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