PLA/PA Bio-Blends: Induced Morphology by Extrusion

The effect of processing conditions on the final morphology of Poly(Lactic Acid) (PLA) with bio-based Polyamide 10.10 (PA) 70/30 blends is analyzed in this paper. Two types of PLA were used: Commercial (neat PLA) and a rheologically modified PLA (PLAREx), with higher melt elasticity produced by reac...

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Detalles Bibliográficos
Autores: García Masabet, Violeta del Valle, Santana Pérez, Orlando O., Cailloux, Jonathan, Abt, Tobias, Sánchez Soto, Miguel, Carrasco, Félix, Maspoch, Maria Lluïsa
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/17674
Acceso en línea:http://hdl.handle.net/10256/17674
Access Level:acceso abierto
Palabra clave:Polímers
Polymers
Polímers -- Deterioració
Polymers -- Deterioration
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spelling PLA/PA Bio-Blends: Induced Morphology by ExtrusionGarcía Masabet, Violeta del ValleSantana Pérez, Orlando O.Cailloux, JonathanAbt, TobiasSánchez Soto, MiguelCarrasco, FélixMaspoch, Maria LluïsaPolímersPolymersPolímers -- DeterioracióPolymers -- DeteriorationThe effect of processing conditions on the final morphology of Poly(Lactic Acid) (PLA) with bio-based Polyamide 10.10 (PA) 70/30 blends is analyzed in this paper. Two types of PLA were used: Commercial (neat PLA) and a rheologically modified PLA (PLAREx), with higher melt elasticity produced by reactive extrusion. To evaluate the ability of in situ micro-fibrillation (μf) of PA phase during blend compounding by twin-screw extrusion, two processing parameters were varied: (i) Screw speed rotation (rpm); and (ii) take-up velocity, to induce a hot stretching with different Draw Ratios (DR). The potential ability of PA-μf in both bio-blends was evaluated by the viscosity (p) and elasticity (k’) ratios determined from the rheological tests of pristine polymers. When PLAREx was used, the requirements for PA-μf was fulfilled in the shear rate range observed at the extrusion die. Scanning electron microscopy (SEM) observations revealed that, unlike neat PLA, PLAREx promoted PA-μf without hot stretching and the aspect ratio increased as DR increased. For neat PLA-based blends, PA-μf was promoted during the hot stretching stage. DMTA analysis revealed that the use of PLAREx PLAREx resulted in a better mechanical performance in the rubbery region (T > Tg PLA-phase) due to the PA-μf morphology obtainedThis research was funded by the financial support from the Spanish Ministry of Economy and Competitiveness through the Project MAT2016-80045-R (AEI/FEDER,UE)MDPI (Multidisciplinary Digital Publishing Institute)2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionpeer-reviewedapplication/pdfhttp://hdl.handle.net/10256/17674http://hdl.handle.net/10256/17674Polymers, 2020, vol. 12, núm. 1, p. 10Articles publicats (D-EQATA)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglésinfo:eu-repo/semantics/altIdentifier/doi/10.3390/polym12010010info:eu-repo/semantics/altIdentifier/eissn/2073-4360Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:10256/176742026-05-29T05:05:01Z
dc.title.none.fl_str_mv PLA/PA Bio-Blends: Induced Morphology by Extrusion
title PLA/PA Bio-Blends: Induced Morphology by Extrusion
spellingShingle PLA/PA Bio-Blends: Induced Morphology by Extrusion
García Masabet, Violeta del Valle
Polímers
Polymers
Polímers -- Deterioració
Polymers -- Deterioration
title_short PLA/PA Bio-Blends: Induced Morphology by Extrusion
title_full PLA/PA Bio-Blends: Induced Morphology by Extrusion
title_fullStr PLA/PA Bio-Blends: Induced Morphology by Extrusion
title_full_unstemmed PLA/PA Bio-Blends: Induced Morphology by Extrusion
title_sort PLA/PA Bio-Blends: Induced Morphology by Extrusion
dc.creator.none.fl_str_mv García Masabet, Violeta del Valle
Santana Pérez, Orlando O.
Cailloux, Jonathan
Abt, Tobias
Sánchez Soto, Miguel
Carrasco, Félix
Maspoch, Maria Lluïsa
author García Masabet, Violeta del Valle
author_facet García Masabet, Violeta del Valle
Santana Pérez, Orlando O.
Cailloux, Jonathan
Abt, Tobias
Sánchez Soto, Miguel
Carrasco, Félix
Maspoch, Maria Lluïsa
author_role author
author2 Santana Pérez, Orlando O.
Cailloux, Jonathan
Abt, Tobias
Sánchez Soto, Miguel
Carrasco, Félix
Maspoch, Maria Lluïsa
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Polímers
Polymers
Polímers -- Deterioració
Polymers -- Deterioration
topic Polímers
Polymers
Polímers -- Deterioració
Polymers -- Deterioration
description The effect of processing conditions on the final morphology of Poly(Lactic Acid) (PLA) with bio-based Polyamide 10.10 (PA) 70/30 blends is analyzed in this paper. Two types of PLA were used: Commercial (neat PLA) and a rheologically modified PLA (PLAREx), with higher melt elasticity produced by reactive extrusion. To evaluate the ability of in situ micro-fibrillation (μf) of PA phase during blend compounding by twin-screw extrusion, two processing parameters were varied: (i) Screw speed rotation (rpm); and (ii) take-up velocity, to induce a hot stretching with different Draw Ratios (DR). The potential ability of PA-μf in both bio-blends was evaluated by the viscosity (p) and elasticity (k’) ratios determined from the rheological tests of pristine polymers. When PLAREx was used, the requirements for PA-μf was fulfilled in the shear rate range observed at the extrusion die. Scanning electron microscopy (SEM) observations revealed that, unlike neat PLA, PLAREx promoted PA-μf without hot stretching and the aspect ratio increased as DR increased. For neat PLA-based blends, PA-μf was promoted during the hot stretching stage. DMTA analysis revealed that the use of PLAREx PLAREx resulted in a better mechanical performance in the rubbery region (T > Tg PLA-phase) due to the PA-μf morphology obtained
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
peer-reviewed
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10256/17674
http://hdl.handle.net/10256/17674
url http://hdl.handle.net/10256/17674
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3390/polym12010010
info:eu-repo/semantics/altIdentifier/eissn/2073-4360
dc.rights.none.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI (Multidisciplinary Digital Publishing Institute)
publisher.none.fl_str_mv MDPI (Multidisciplinary Digital Publishing Institute)
dc.source.none.fl_str_mv Polymers, 2020, vol. 12, núm. 1, p. 10
Articles publicats (D-EQATA)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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