Development of poly(lactic acid) nanocomposites reinforced with hydrophobized bacterial cellulose

"Poly(lactic acid)/bacterial cellulose nanocomposites were prepared by solvent casting. Aiming to reduce the incompatibility between polar bacterial cellulose (BC) and the nonpolar poly(lactic acid) (PLA) matrix which induces filler aggregation and poor reinforcement dispersion, BC was acetylat...

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Autores principales: Ávila Ramírez, Jhon Alejandro, Bovi, Jimena, Bernal, Celina, Foresti, María Laura, Errea, María Inés
Formato: Artículos de Publicaciones Periódicas acceptedVersion
Lenguaje:Inglés
Publicado: info
Materias:
ACETILACION
CELULOSA BACTERIANA
ACIDO LACTICO
NANOCOMPUESTOS
Acceso en línea:http://ri.itba.edu.ar/handle/123456789/1914
Aporte de:
Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA) de Instituto Tecnológico de Buenos Aires (ITBA)
id I32-R138-123456789-1914
record_format dspace
spelling I32-R138-123456789-19142022-12-07T13:06:11Z Development of poly(lactic acid) nanocomposites reinforced with hydrophobized bacterial cellulose Ávila Ramírez, Jhon Alejandro Bovi, Jimena Bernal, Celina Foresti, María Laura Errea, María Inés ACETILACION CELULOSA BACTERIANA ACIDO LACTICO NANOCOMPUESTOS "Poly(lactic acid)/bacterial cellulose nanocomposites were prepared by solvent casting. Aiming to reduce the incompatibility between polar bacterial cellulose (BC) and the nonpolar poly(lactic acid) (PLA) matrix which induces filler aggregation and poor reinforcement dispersion, BC was acetylated by the use of a non-conventional route catalyzed by citric acid. The derivatized BC (AcBC) was incorporated into de PLA matrix at varying filler loadings, and optical, morphological, structural, thermal, tensile and barrier (water vapor) properties of PLA/AcBC in comparison with PLA/BC were evaluated. Noticeable changes in the nanocomposite properties were ascribed to the success of the route proposed to surface hydrophobize BC, which significantly improved its dispersibility within the PLA matrix and the matrix-filler interaction. By the way, the variation of filler loading allowed attaining remarkable increases in the nanocomposite films stiffness without significant reductions in tensile strength and water vapor permeability." info:eu-repo/date/embargoEnd/2021-01-01 2020-03-25T14:42:28Z 2020-03-25T14:42:28Z 2020-01 Artículos de Publicaciones Periódicas info:eu-repo/semantics/acceptedVersion 1566-2543 http://ri.itba.edu.ar/handle/123456789/1914 en info:eu-repo/semantics/altIdentifier/doi/10.1007/s10924-019-01581-1 info:eu-repo/grantAgreement/CONICET/PIP/11220150100660CO/AR. Ciudad Autónoma de Buenos Aires info:eu-repo/grantAgreement/ANPCyT/PICT/0843-2016/AR. Ciudad Autónoma de Buenos Aires info:eu-repo/grantAgreement/UBA/UBACyT/20020170100696BA/AR. Ciudad Autónoma de Buenos Aires application/pdf
institution Instituto Tecnológico de Buenos Aires (ITBA)
institution_str I-32
repository_str R-138
collection Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA)
language Inglés
topic ACETILACION
CELULOSA BACTERIANA
ACIDO LACTICO
NANOCOMPUESTOS
spellingShingle ACETILACION
CELULOSA BACTERIANA
ACIDO LACTICO
NANOCOMPUESTOS
Ávila Ramírez, Jhon Alejandro
Bovi, Jimena
Bernal, Celina
Foresti, María Laura
Errea, María Inés
Development of poly(lactic acid) nanocomposites reinforced with hydrophobized bacterial cellulose
topic_facet ACETILACION
CELULOSA BACTERIANA
ACIDO LACTICO
NANOCOMPUESTOS
description "Poly(lactic acid)/bacterial cellulose nanocomposites were prepared by solvent casting. Aiming to reduce the incompatibility between polar bacterial cellulose (BC) and the nonpolar poly(lactic acid) (PLA) matrix which induces filler aggregation and poor reinforcement dispersion, BC was acetylated by the use of a non-conventional route catalyzed by citric acid. The derivatized BC (AcBC) was incorporated into de PLA matrix at varying filler loadings, and optical, morphological, structural, thermal, tensile and barrier (water vapor) properties of PLA/AcBC in comparison with PLA/BC were evaluated. Noticeable changes in the nanocomposite properties were ascribed to the success of the route proposed to surface hydrophobize BC, which significantly improved its dispersibility within the PLA matrix and the matrix-filler interaction. By the way, the variation of filler loading allowed attaining remarkable increases in the nanocomposite films stiffness without significant reductions in tensile strength and water vapor permeability."
format Artículos de Publicaciones Periódicas
acceptedVersion
author Ávila Ramírez, Jhon Alejandro
Bovi, Jimena
Bernal, Celina
Foresti, María Laura
Errea, María Inés
author_facet Ávila Ramírez, Jhon Alejandro
Bovi, Jimena
Bernal, Celina
Foresti, María Laura
Errea, María Inés
author_sort Ávila Ramírez, Jhon Alejandro
title Development of poly(lactic acid) nanocomposites reinforced with hydrophobized bacterial cellulose
title_short Development of poly(lactic acid) nanocomposites reinforced with hydrophobized bacterial cellulose
title_full Development of poly(lactic acid) nanocomposites reinforced with hydrophobized bacterial cellulose
title_fullStr Development of poly(lactic acid) nanocomposites reinforced with hydrophobized bacterial cellulose
title_full_unstemmed Development of poly(lactic acid) nanocomposites reinforced with hydrophobized bacterial cellulose
title_sort development of poly(lactic acid) nanocomposites reinforced with hydrophobized bacterial cellulose
publishDate info
url http://ri.itba.edu.ar/handle/123456789/1914
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