Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character

Nowadays, the interest on nanofibrillated cellulose (CNF) has increased owing to its sustainability and its capacity to improve mechanical and barrier properties of polymeric films. Moreover, this filler shows some drawbacks related with its high capacity to form aggregates, hindering its dispersion...

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Autores: Granda Garcia, Luis Angel, Oliver Ortega, Helena, Fabra, Maria José, Tarrés Farrés, Joaquim Agustí, Pèlach Serra, Maria Àngels, Lagarón, José Maria, Méndez González, José Alberto
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
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:10256/21228
Acceso en línea:http://hdl.handle.net/10256/21228
Access Level:acceso abierto
Palabra clave:Nanocompòsits (Materials) -- Biodegradació
Nanocomposites (Materials) -- Biodegradation
Fibres de cel·lulosa
Cellulose fibers
Biopolímers
Biopolymers
Midó
Starch
Plàstics reforçats amb fibra
Fiber-reinforced plastics
Aliments -- Embalatge -- Materials
Food -- Packing -- Materials
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spelling Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier CharacterGranda Garcia, Luis AngelOliver Ortega, HelenaFabra, Maria JoséTarrés Farrés, Joaquim AgustíPèlach Serra, Maria ÀngelsLagarón, José MariaMéndez González, José AlbertoNanocompòsits (Materials) -- BiodegradacióNanocomposites (Materials) -- BiodegradationFibres de cel·lulosaCellulose fibersBiopolímersBiopolymersMidóStarchPlàstics reforçats amb fibraFiber-reinforced plasticsAliments -- Embalatge -- MaterialsFood -- Packing -- MaterialsNowadays, the interest on nanofibrillated cellulose (CNF) has increased owing to its sustainability and its capacity to improve mechanical and barrier properties of polymeric films. Moreover, this filler shows some drawbacks related with its high capacity to form aggregates, hindering its dispersion in the matrix. In this work, an improved procedure to optimize the dispersability of CNF in a thermoplastic starch was put forward. On the one hand, CNF needs a hydrophilic dispersant to be included in the matrix, and on the other, starch needs a hydrophilic plasticizer to obtain a thermoformable material. Glycerol was used to fulfil both targets at once. CNF was predispersed in the plasticizer before nanofibrillation and later on was included into starch, obtaining thin films. The tensile strength of these CNF–starch composite films was 60% higher than the plain thermoplastic starch at a very low 0.36% w/w percentage of CNF. The films showed a noticeable correlation between water uptake, and temperature and humidity. Regarding permeability, a ca. 55% oxygen and water vapor permeability drop was found by nanofiller loading. The hydrolytic susceptibility of the composite was confirmed, being similar to that of the thermoplastic starchThis research was funded by University of Girona through the Program of the Improvement of the Scientific Production and the MINECO project AGL2015-63855-C2-1-RMDPI (Multidisciplinary Digital Publishing Institute)2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionpeer-reviewedapplication/pdfhttp://hdl.handle.net/10256/21228http://hdl.handle.net/10256/21228Polymers, 2020, vol. 12, núm. 5, p. 1071Articles 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/polym12051071info:eu-repo/semantics/altIdentifier/eissn/2073-4360Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:10256/212282026-05-29T05:05:01Z
dc.title.none.fl_str_mv Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character
title Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character
spellingShingle Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character
Granda Garcia, Luis Angel
Nanocompòsits (Materials) -- Biodegradació
Nanocomposites (Materials) -- Biodegradation
Fibres de cel·lulosa
Cellulose fibers
Biopolímers
Biopolymers
Midó
Starch
Plàstics reforçats amb fibra
Fiber-reinforced plastics
Aliments -- Embalatge -- Materials
Food -- Packing -- Materials
title_short Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character
title_full Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character
title_fullStr Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character
title_full_unstemmed Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character
title_sort Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character
dc.creator.none.fl_str_mv Granda Garcia, Luis Angel
Oliver Ortega, Helena
Fabra, Maria José
Tarrés Farrés, Joaquim Agustí
Pèlach Serra, Maria Àngels
Lagarón, José Maria
Méndez González, José Alberto
author Granda Garcia, Luis Angel
author_facet Granda Garcia, Luis Angel
Oliver Ortega, Helena
Fabra, Maria José
Tarrés Farrés, Joaquim Agustí
Pèlach Serra, Maria Àngels
Lagarón, José Maria
Méndez González, José Alberto
author_role author
author2 Oliver Ortega, Helena
Fabra, Maria José
Tarrés Farrés, Joaquim Agustí
Pèlach Serra, Maria Àngels
Lagarón, José Maria
Méndez González, José Alberto
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Nanocompòsits (Materials) -- Biodegradació
Nanocomposites (Materials) -- Biodegradation
Fibres de cel·lulosa
Cellulose fibers
Biopolímers
Biopolymers
Midó
Starch
Plàstics reforçats amb fibra
Fiber-reinforced plastics
Aliments -- Embalatge -- Materials
Food -- Packing -- Materials
topic Nanocompòsits (Materials) -- Biodegradació
Nanocomposites (Materials) -- Biodegradation
Fibres de cel·lulosa
Cellulose fibers
Biopolímers
Biopolymers
Midó
Starch
Plàstics reforçats amb fibra
Fiber-reinforced plastics
Aliments -- Embalatge -- Materials
Food -- Packing -- Materials
description Nowadays, the interest on nanofibrillated cellulose (CNF) has increased owing to its sustainability and its capacity to improve mechanical and barrier properties of polymeric films. Moreover, this filler shows some drawbacks related with its high capacity to form aggregates, hindering its dispersion in the matrix. In this work, an improved procedure to optimize the dispersability of CNF in a thermoplastic starch was put forward. On the one hand, CNF needs a hydrophilic dispersant to be included in the matrix, and on the other, starch needs a hydrophilic plasticizer to obtain a thermoformable material. Glycerol was used to fulfil both targets at once. CNF was predispersed in the plasticizer before nanofibrillation and later on was included into starch, obtaining thin films. The tensile strength of these CNF–starch composite films was 60% higher than the plain thermoplastic starch at a very low 0.36% w/w percentage of CNF. The films showed a noticeable correlation between water uptake, and temperature and humidity. Regarding permeability, a ca. 55% oxygen and water vapor permeability drop was found by nanofiller loading. The hydrolytic susceptibility of the composite was confirmed, being similar to that of the thermoplastic starch
publishDate 2020
dc.date.none.fl_str_mv 2020
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/10256/21228
http://hdl.handle.net/10256/21228
url http://hdl.handle.net/10256/21228
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/polym12051071
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. 5, p. 1071
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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