Non-isothermal crystallization kinetics from the melt of nanocomposites based on poly(3-hydroxybutyrate) and modified clays

Autores
D'amico, David Alberto; Cyras, Viviana Paola; Manfredi, Liliana Beatriz
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Poly(3-hydroxybutyrate) (PHB) films and its nanocomposites were obtained by casting. Three types of modified clays were used in order to improve the compatibility with the PHB. The films were characterized determining the thermal properties and the non-isothermal crystallization kinetic parameters from the melt. No change in the melting temperature of PHB was observed with the clay addition but the Tg diminished for the nanocomposites with the clay modified by ion exchange (MI) and by acid activation (MAI) to the PHB, due to the effect of the organic modifiers. From non-isothermal studies, it was observed a diminution of the peak of the crystallization temperature of PHB with the addition of clay at all of the cooling rates studied. The nanocomposites with MI and MAI exhibited the slowest crystallization rate among the materials, studied by the Liu–Mo model. However, the addition of the clay modified by silylation (MAGI) did not affect the crystallization rate of PHB. Effective activation energy (Ea) of the crystallization process of PHB and the nanocomposites was calculated by the isoconversional methods of Friedman and Vyazovkin. The Ea of the PHB increased with the addition of any type of the clays studied, but the rate of crystallization was reduced.
Fil: D'amico, David Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Cyras, Viviana Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Manfredi, Liliana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Materia
Polyhydroxybutyrate
Clay
Nanocomposites
Non Isothermal Crystallization Kinetics
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/5188
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/5188
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Non-isothermal crystallization kinetics from the melt of nanocomposites based on poly(3-hydroxybutyrate) and modified claysD'amico, David AlbertoCyras, Viviana PaolaManfredi, Liliana BeatrizPolyhydroxybutyrateClayNanocompositesNon Isothermal Crystallization Kineticshttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1https://purl.org/becyt/ford/2.9https://purl.org/becyt/ford/2Poly(3-hydroxybutyrate) (PHB) films and its nanocomposites were obtained by casting. Three types of modified clays were used in order to improve the compatibility with the PHB. The films were characterized determining the thermal properties and the non-isothermal crystallization kinetic parameters from the melt. No change in the melting temperature of PHB was observed with the clay addition but the Tg diminished for the nanocomposites with the clay modified by ion exchange (MI) and by acid activation (MAI) to the PHB, due to the effect of the organic modifiers. From non-isothermal studies, it was observed a diminution of the peak of the crystallization temperature of PHB with the addition of clay at all of the cooling rates studied. The nanocomposites with MI and MAI exhibited the slowest crystallization rate among the materials, studied by the Liu–Mo model. However, the addition of the clay modified by silylation (MAGI) did not affect the crystallization rate of PHB. Effective activation energy (Ea) of the crystallization process of PHB and the nanocomposites was calculated by the isoconversional methods of Friedman and Vyazovkin. The Ea of the PHB increased with the addition of any type of the clays studied, but the rate of crystallization was reduced.Fil: D'amico, David Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Cyras, Viviana Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Manfredi, Liliana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaElsevier2014-10-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5188D'amico, David Alberto; Cyras, Viviana Paola; Manfredi, Liliana Beatriz; Non-isothermal crystallization kinetics from the melt of nanocomposites based on poly(3-hydroxybutyrate) and modified clays; Elsevier; Thermochimica Acta; 594; 20-10-2014; 80-880040-6031enginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/issn/0040-6031info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0040603114003876info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tca.2014.08.023info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:54:15Zoai:ri.conicet.gov.ar:11336/5188instacron: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:34982025-09-03 09:54:15.523CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Non-isothermal crystallization kinetics from the melt of nanocomposites based on poly(3-hydroxybutyrate) and modified clays
title Non-isothermal crystallization kinetics from the melt of nanocomposites based on poly(3-hydroxybutyrate) and modified clays
spellingShingle Non-isothermal crystallization kinetics from the melt of nanocomposites based on poly(3-hydroxybutyrate) and modified clays
D'amico, David Alberto
Polyhydroxybutyrate
Clay
Nanocomposites
Non Isothermal Crystallization Kinetics
title_short Non-isothermal crystallization kinetics from the melt of nanocomposites based on poly(3-hydroxybutyrate) and modified clays
title_full Non-isothermal crystallization kinetics from the melt of nanocomposites based on poly(3-hydroxybutyrate) and modified clays
title_fullStr Non-isothermal crystallization kinetics from the melt of nanocomposites based on poly(3-hydroxybutyrate) and modified clays
title_full_unstemmed Non-isothermal crystallization kinetics from the melt of nanocomposites based on poly(3-hydroxybutyrate) and modified clays
title_sort Non-isothermal crystallization kinetics from the melt of nanocomposites based on poly(3-hydroxybutyrate) and modified clays
dc.creator.none.fl_str_mv D'amico, David Alberto
Cyras, Viviana Paola
Manfredi, Liliana Beatriz
author D'amico, David Alberto
author_facet D'amico, David Alberto
Cyras, Viviana Paola
Manfredi, Liliana Beatriz
author_role author
author2 Cyras, Viviana Paola
Manfredi, Liliana Beatriz
author2_role author
author
dc.subject.none.fl_str_mv Polyhydroxybutyrate
Clay
Nanocomposites
Non Isothermal Crystallization Kinetics
topic Polyhydroxybutyrate
Clay
Nanocomposites
Non Isothermal Crystallization Kinetics
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/2.9
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Poly(3-hydroxybutyrate) (PHB) films and its nanocomposites were obtained by casting. Three types of modified clays were used in order to improve the compatibility with the PHB. The films were characterized determining the thermal properties and the non-isothermal crystallization kinetic parameters from the melt. No change in the melting temperature of PHB was observed with the clay addition but the Tg diminished for the nanocomposites with the clay modified by ion exchange (MI) and by acid activation (MAI) to the PHB, due to the effect of the organic modifiers. From non-isothermal studies, it was observed a diminution of the peak of the crystallization temperature of PHB with the addition of clay at all of the cooling rates studied. The nanocomposites with MI and MAI exhibited the slowest crystallization rate among the materials, studied by the Liu–Mo model. However, the addition of the clay modified by silylation (MAGI) did not affect the crystallization rate of PHB. Effective activation energy (Ea) of the crystallization process of PHB and the nanocomposites was calculated by the isoconversional methods of Friedman and Vyazovkin. The Ea of the PHB increased with the addition of any type of the clays studied, but the rate of crystallization was reduced.
Fil: D'amico, David Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Cyras, Viviana Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Manfredi, Liliana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
description Poly(3-hydroxybutyrate) (PHB) films and its nanocomposites were obtained by casting. Three types of modified clays were used in order to improve the compatibility with the PHB. The films were characterized determining the thermal properties and the non-isothermal crystallization kinetic parameters from the melt. No change in the melting temperature of PHB was observed with the clay addition but the Tg diminished for the nanocomposites with the clay modified by ion exchange (MI) and by acid activation (MAI) to the PHB, due to the effect of the organic modifiers. From non-isothermal studies, it was observed a diminution of the peak of the crystallization temperature of PHB with the addition of clay at all of the cooling rates studied. The nanocomposites with MI and MAI exhibited the slowest crystallization rate among the materials, studied by the Liu–Mo model. However, the addition of the clay modified by silylation (MAGI) did not affect the crystallization rate of PHB. Effective activation energy (Ea) of the crystallization process of PHB and the nanocomposites was calculated by the isoconversional methods of Friedman and Vyazovkin. The Ea of the PHB increased with the addition of any type of the clays studied, but the rate of crystallization was reduced.
publishDate 2014
dc.date.none.fl_str_mv 2014-10-20
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/11336/5188
D'amico, David Alberto; Cyras, Viviana Paola; Manfredi, Liliana Beatriz; Non-isothermal crystallization kinetics from the melt of nanocomposites based on poly(3-hydroxybutyrate) and modified clays; Elsevier; Thermochimica Acta; 594; 20-10-2014; 80-88
0040-6031
url http://hdl.handle.net/11336/5188
identifier_str_mv D'amico, David Alberto; Cyras, Viviana Paola; Manfredi, Liliana Beatriz; Non-isothermal crystallization kinetics from the melt of nanocomposites based on poly(3-hydroxybutyrate) and modified clays; Elsevier; Thermochimica Acta; 594; 20-10-2014; 80-88
0040-6031
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/issn/0040-6031
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0040603114003876
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tca.2014.08.023
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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 13.13397

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