Morphology and properties of neutralized chitosan-cellulosenanocrystals biocomposite films

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Chitosan/cellulose nanocrystals (CH-CN) films were obtained by casting of dispersions, and treated with NaOH for neutralization proposes. The composition of films was varied from 1 to 10 wt.% of CN. Changes in the morphology of the systems were correlated with the different properties studied. FTIR...

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Autores principales: Corsello, Flavia Anahí, Bolla, Patricia Araceli, Anbinder, Pablo, Serradell, María de los Ángeles, Amalvy, Javier, Peruzzo, Pablo
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 2019
Materias:
Chitosan; Cellulose nanocrystals; Bionanocomposites
Acceso en línea:http://hdl.handle.net/20.500.12272/3422
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-3422
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic Chitosan; Cellulose nanocrystals; Bionanocomposites
spellingShingle Chitosan; Cellulose nanocrystals; Bionanocomposites
Corsello, Flavia Anahí
Bolla, Patricia Araceli
Anbinder, Pablo
Serradell, María de los Ángeles
Amalvy, Javier
Peruzzo, Pablo
Morphology and properties of neutralized chitosan-cellulosenanocrystals biocomposite films
topic_facet Chitosan; Cellulose nanocrystals; Bionanocomposites
description Chitosan/cellulose nanocrystals (CH-CN) films were obtained by casting of dispersions, and treated with NaOH for neutralization proposes. The composition of films was varied from 1 to 10 wt.% of CN. Changes in the morphology of the systems were correlated with the different properties studied. FTIR revealed the presence of a weak interaction between the polymer matrix and nanofiller, confirmed by a slightly increase in thermal stability. SEM images suggested that incorporating CN amounts higher than 3 wt.% generates phase-segregated systems, and SAXS showed that CH avoid the typical organization of CN at concentrations below 5 wt.%. Improved performance against water was obtained in composite materials comparing to the pure polymer matrix, as well as CH and CH-CN films did not show antibacterial activity demonstrating that remnant acetic acid, when no neutralization step is done, plays an important role in this property.
format Artículo
publishedVersion
Artículo
author Corsello, Flavia Anahí
Bolla, Patricia Araceli
Anbinder, Pablo
Serradell, María de los Ángeles
Amalvy, Javier
Peruzzo, Pablo
author_facet Corsello, Flavia Anahí
Bolla, Patricia Araceli
Anbinder, Pablo
Serradell, María de los Ángeles
Amalvy, Javier
Peruzzo, Pablo
author_sort Corsello, Flavia Anahí
title Morphology and properties of neutralized chitosan-cellulosenanocrystals biocomposite films
title_short Morphology and properties of neutralized chitosan-cellulosenanocrystals biocomposite films
title_full Morphology and properties of neutralized chitosan-cellulosenanocrystals biocomposite films
title_fullStr Morphology and properties of neutralized chitosan-cellulosenanocrystals biocomposite films
title_full_unstemmed Morphology and properties of neutralized chitosan-cellulosenanocrystals biocomposite films
title_sort morphology and properties of neutralized chitosan-cellulosenanocrystals biocomposite films
publishDate 2019
url http://hdl.handle.net/20.500.12272/3422
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