Nanocomposite Films Based on Flaxseed Gum and Cellulose Nanocrystals

Detalhes bibliográficos
Autor(a) principal: Prado,Natália Soares
Data de Publicação: 2018
Outros Autores: Silva,Ingrid Souza Vieira da, Silva,Thiago Alves Lopes, Oliveira,Welles Júnior de, Motta,Leila Aparecida de Castro, Pasquini,Daniel, Otaguro,Harumi
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000600232
Resumo: Flaxseed gum (FG)-based films were developed with the addition of glycerol as a plasticizer and glutaraldehyde as a crosslinking agent. HCl was added to improve crosslinking and decrease the hydrophilicity of the matrix. Different cellulose nanocrystal (CN) amounts were used as reinforcements in the optimum FG formulation. The crosslinking process at pH 3.5 led to a lower solubility of FG in water (from 100% to 53%) and an increase in thermal stability (from 160 ºC to 209 ºC). FTIR analysis confirmed a reduction in the -OH band due to crosslinking between the hydroxyl groups of FG. A diffuse diffraction pattern was observed for all FG films. The addition of 4% w/w of CN contributed to reduction of water solubility (from 53% to 20.8%) and absorption (from 21.9% to 6.8%). Finally, an improvement was observed in the tensile mechanical properties in the nanocomposites, showing satisfactory results for the proposed formulations, mainly with 8% w/w of CN added to the matrix. Overall, this study demonstrated that FG/CN nanocomposites are promising materials to be use as a sustainable biopolymer for application as bioplastics.
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spelling Nanocomposite Films Based on Flaxseed Gum and Cellulose NanocrystalsFlaxseed gumcellulose nanocrystalscrosslinkingnanocompositebiopolymerFlaxseed gum (FG)-based films were developed with the addition of glycerol as a plasticizer and glutaraldehyde as a crosslinking agent. HCl was added to improve crosslinking and decrease the hydrophilicity of the matrix. Different cellulose nanocrystal (CN) amounts were used as reinforcements in the optimum FG formulation. The crosslinking process at pH 3.5 led to a lower solubility of FG in water (from 100% to 53%) and an increase in thermal stability (from 160 ºC to 209 ºC). FTIR analysis confirmed a reduction in the -OH band due to crosslinking between the hydroxyl groups of FG. A diffuse diffraction pattern was observed for all FG films. The addition of 4% w/w of CN contributed to reduction of water solubility (from 53% to 20.8%) and absorption (from 21.9% to 6.8%). Finally, an improvement was observed in the tensile mechanical properties in the nanocomposites, showing satisfactory results for the proposed formulations, mainly with 8% w/w of CN added to the matrix. Overall, this study demonstrated that FG/CN nanocomposites are promising materials to be use as a sustainable biopolymer for application as bioplastics.ABM, ABC, ABPol2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000600232Materials Research v.21 n.6 2018reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2018-0134info:eu-repo/semantics/openAccessPrado,Natália SoaresSilva,Ingrid Souza Vieira daSilva,Thiago Alves LopesOliveira,Welles Júnior deMotta,Leila Aparecida de CastroPasquini,DanielOtaguro,Harumieng2018-10-19T00:00:00Zoai:scielo:S1516-14392018000600232Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2018-10-19T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Nanocomposite Films Based on Flaxseed Gum and Cellulose Nanocrystals
title Nanocomposite Films Based on Flaxseed Gum and Cellulose Nanocrystals
spellingShingle Nanocomposite Films Based on Flaxseed Gum and Cellulose Nanocrystals
Prado,Natália Soares
Flaxseed gum
cellulose nanocrystals
crosslinking
nanocomposite
biopolymer
title_short Nanocomposite Films Based on Flaxseed Gum and Cellulose Nanocrystals
title_full Nanocomposite Films Based on Flaxseed Gum and Cellulose Nanocrystals
title_fullStr Nanocomposite Films Based on Flaxseed Gum and Cellulose Nanocrystals
title_full_unstemmed Nanocomposite Films Based on Flaxseed Gum and Cellulose Nanocrystals
title_sort Nanocomposite Films Based on Flaxseed Gum and Cellulose Nanocrystals
author Prado,Natália Soares
author_facet Prado,Natália Soares
Silva,Ingrid Souza Vieira da
Silva,Thiago Alves Lopes
Oliveira,Welles Júnior de
Motta,Leila Aparecida de Castro
Pasquini,Daniel
Otaguro,Harumi
author_role author
author2 Silva,Ingrid Souza Vieira da
Silva,Thiago Alves Lopes
Oliveira,Welles Júnior de
Motta,Leila Aparecida de Castro
Pasquini,Daniel
Otaguro,Harumi
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Prado,Natália Soares
Silva,Ingrid Souza Vieira da
Silva,Thiago Alves Lopes
Oliveira,Welles Júnior de
Motta,Leila Aparecida de Castro
Pasquini,Daniel
Otaguro,Harumi
dc.subject.por.fl_str_mv Flaxseed gum
cellulose nanocrystals
crosslinking
nanocomposite
biopolymer
topic Flaxseed gum
cellulose nanocrystals
crosslinking
nanocomposite
biopolymer
description Flaxseed gum (FG)-based films were developed with the addition of glycerol as a plasticizer and glutaraldehyde as a crosslinking agent. HCl was added to improve crosslinking and decrease the hydrophilicity of the matrix. Different cellulose nanocrystal (CN) amounts were used as reinforcements in the optimum FG formulation. The crosslinking process at pH 3.5 led to a lower solubility of FG in water (from 100% to 53%) and an increase in thermal stability (from 160 ºC to 209 ºC). FTIR analysis confirmed a reduction in the -OH band due to crosslinking between the hydroxyl groups of FG. A diffuse diffraction pattern was observed for all FG films. The addition of 4% w/w of CN contributed to reduction of water solubility (from 53% to 20.8%) and absorption (from 21.9% to 6.8%). Finally, an improvement was observed in the tensile mechanical properties in the nanocomposites, showing satisfactory results for the proposed formulations, mainly with 8% w/w of CN added to the matrix. Overall, this study demonstrated that FG/CN nanocomposites are promising materials to be use as a sustainable biopolymer for application as bioplastics.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000600232
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000600232
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2018-0134
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.21 n.6 2018
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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