Cargando…

Effect of Microfibrillated Cellulose on Microstructure and Properties of Poly(vinyl alcohol) Foams

Poly(vinyl alcohol) foams, containing different amounts of microfibrillated cellulose, were prepared through an eco-friendly procedure based on high-speed mixing and freeze-drying. The effect of filler amount on cell shape and regularity was studied by scanning electron microscopy (SEM) and the evol...

Descripción completa

Detalles Bibliográficos
Autores principales: Gentile, Gennaro, Cocca, Mariacristina, Avolio, Roberto, Errico, Maria Emanuela, Avella, Maurizio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6403540/
https://www.ncbi.nlm.nih.gov/pubmed/30960738
http://dx.doi.org/10.3390/polym10080813
_version_ 1783400631197761536
author Gentile, Gennaro
Cocca, Mariacristina
Avolio, Roberto
Errico, Maria Emanuela
Avella, Maurizio
author_facet Gentile, Gennaro
Cocca, Mariacristina
Avolio, Roberto
Errico, Maria Emanuela
Avella, Maurizio
author_sort Gentile, Gennaro
collection PubMed
description Poly(vinyl alcohol) foams, containing different amounts of microfibrillated cellulose, were prepared through an eco-friendly procedure based on high-speed mixing and freeze-drying. The effect of filler amount on cell shape and regularity was studied by scanning electron microscopy (SEM) and the evolution of the microstructure was assessed through dynamic cryo-SEM. Fourier Transformed Infrared Analysis and Differential Scanning Calorimetry measurements revealed the presence of hydrogen bond interaction among cellulosic filler and the matrix. The modulus and compression deflection of neat PVA were significantly improved by increasing the amount of microfibrillated cellulose content with respect to foams realised with pulp cellulose fibers.
format Online
Article
Text
id pubmed-6403540
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-64035402019-04-02 Effect of Microfibrillated Cellulose on Microstructure and Properties of Poly(vinyl alcohol) Foams Gentile, Gennaro Cocca, Mariacristina Avolio, Roberto Errico, Maria Emanuela Avella, Maurizio Polymers (Basel) Article Poly(vinyl alcohol) foams, containing different amounts of microfibrillated cellulose, were prepared through an eco-friendly procedure based on high-speed mixing and freeze-drying. The effect of filler amount on cell shape and regularity was studied by scanning electron microscopy (SEM) and the evolution of the microstructure was assessed through dynamic cryo-SEM. Fourier Transformed Infrared Analysis and Differential Scanning Calorimetry measurements revealed the presence of hydrogen bond interaction among cellulosic filler and the matrix. The modulus and compression deflection of neat PVA were significantly improved by increasing the amount of microfibrillated cellulose content with respect to foams realised with pulp cellulose fibers. MDPI 2018-07-24 /pmc/articles/PMC6403540/ /pubmed/30960738 http://dx.doi.org/10.3390/polym10080813 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Gentile, Gennaro
Cocca, Mariacristina
Avolio, Roberto
Errico, Maria Emanuela
Avella, Maurizio
Effect of Microfibrillated Cellulose on Microstructure and Properties of Poly(vinyl alcohol) Foams
title Effect of Microfibrillated Cellulose on Microstructure and Properties of Poly(vinyl alcohol) Foams
title_full Effect of Microfibrillated Cellulose on Microstructure and Properties of Poly(vinyl alcohol) Foams
title_fullStr Effect of Microfibrillated Cellulose on Microstructure and Properties of Poly(vinyl alcohol) Foams
title_full_unstemmed Effect of Microfibrillated Cellulose on Microstructure and Properties of Poly(vinyl alcohol) Foams
title_short Effect of Microfibrillated Cellulose on Microstructure and Properties of Poly(vinyl alcohol) Foams
title_sort effect of microfibrillated cellulose on microstructure and properties of poly(vinyl alcohol) foams
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6403540/
https://www.ncbi.nlm.nih.gov/pubmed/30960738
http://dx.doi.org/10.3390/polym10080813
work_keys_str_mv AT gentilegennaro effectofmicrofibrillatedcelluloseonmicrostructureandpropertiesofpolyvinylalcoholfoams
AT coccamariacristina effectofmicrofibrillatedcelluloseonmicrostructureandpropertiesofpolyvinylalcoholfoams
AT avolioroberto effectofmicrofibrillatedcelluloseonmicrostructureandpropertiesofpolyvinylalcoholfoams
AT erricomariaemanuela effectofmicrofibrillatedcelluloseonmicrostructureandpropertiesofpolyvinylalcoholfoams
AT avellamaurizio effectofmicrofibrillatedcelluloseonmicrostructureandpropertiesofpolyvinylalcoholfoams