Alkaline Pretreatment Facilitate Mechanical Fibrillation ofUnbleached Cellulose Pulps for Obtaining of Cellulose micro/nanofibrils (MFC)

Detalhes bibliográficos
Autor(a) principal: Mendonça, Maressa
Data de Publicação: 2022
Outros Autores: Dias, Matheus Cordazzo, Martins, Caio Cesar Nemer, Durães, Alisson Farley Soares, Damásio, Renato Augusto Pereira, Tonoli, Gustavo Henrique Denzin
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UFLA
Texto Completo: https://doi.org/10.1080/15440478.2022.2092252
http://repositorio.ufla.br/jspui/handle/1/59489
Resumo: As licenças de acesso aberto aplicáveis a este artigo estão em conformidade com as políticas do periódico em que foi publicado, disponíveis no link: https://v2.sherpa.ac.uk/id/publication/5687. Consulta realizada em 24 de set. de 2024.
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spelling Alkaline Pretreatment Facilitate Mechanical Fibrillation ofUnbleached Cellulose Pulps for Obtaining of Cellulose micro/nanofibrils (MFC)Fibras de celuloseMicrofibrilas de celuloseNanofibrilas de celuloseTratamento alcalinoEnergia de fibrilaçãoPropriedades mecânicasSuspensões de fibraCellulose fibersMicrofibrillated celluloseCellulose nanofibersAlkaline treatmentFibrillation energyMechanical propertiesFiber suspensionsAs licenças de acesso aberto aplicáveis a este artigo estão em conformidade com as políticas do periódico em que foi publicado, disponíveis no link: https://v2.sherpa.ac.uk/id/publication/5687. Consulta realizada em 24 de set. de 2024.Energy expenditure is a limiting factor for the production of cellulose micro/nanofibrils in mechanical processing. This study evaluated the effect of novel alkaline pretreatments on unbleached Eucalyptus sp. pulps (hardwood) and Pinus sp. cellulose (softwood) to facilitate the production of cellulose nanofibrils by mechanical fibrillation and reduce the energy consumed by the mill. Pretreatments with NaOH in concentrations of 5% for 2 h and 10% for 1 h and 2 h and a hybrid pretreatment with 5%/16% NaOH/ H2O2 for 2 h were evaluated. The 10% pre-treatment was done at 1 h and 2 h to evaluate the effect of the less aggressive treatment (1 h). The morphology, chemical composition, turbidity of the fibers/suspensions, mechanical properties, fibrillation quality index and energy expended during the fibrillation were evaluated for each pretreatment. The less aggressive pretreatments produced micro/nanofibrils with fewer passes of the pulp through the fibrillator, which effectively facilitated extraction with lower energy consumption. The hybrid pretreatment did not show satisfactory results in reducing energy consumption, and the quality of the nanofibrils produced by this pre-treatment was inferior to the others. This study showed innovation in performing novel and efficient NaOH and hybrid (NaOH/H202) pretreatments on commercial unbleached pulps to obtain pulp micro/nanofibrils.Taylor & Francis Group2024-09-24T14:41:19Z2024-09-24T14:41:19Z2022-06-22info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfMENDONÇA, Maressa; DIAS, Matheus Cordazzo; MARTINS, Caio Cesar Nemer; DURÃES, Alisson Farley Soares; DAMÁSIO, Renato Augusto Pereira; TONOLI, Gustavo Henrique Denzin. Alkaline pretreatment facilitate mechanical fibrillation of unbleached cellulose pulps for obtaining of cellulose micro/nanofibrils (MFC). Journal of Natural Fibers, v. 19, n. 16, p. 13385-13400, 2022. DOI: 10.1080/15440478.2022.2092252. Disponível em: https://doi.org/10.1080/15440478.2022.2092252. Acesso em: 24 set. 2024.https://doi.org/10.1080/15440478.2022.2092252http://repositorio.ufla.br/jspui/handle/1/59489Journal of Natural Fibersreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessMendonça, MaressaDias, Matheus CordazzoMartins, Caio Cesar NemerDurães, Alisson Farley SoaresDamásio, Renato Augusto PereiraTonoli, Gustavo Henrique Denzinpor2024-09-24T16:45:31Zoai:localhost:1/59489Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2024-09-24T16:45:31Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Alkaline Pretreatment Facilitate Mechanical Fibrillation ofUnbleached Cellulose Pulps for Obtaining of Cellulose micro/nanofibrils (MFC)
title Alkaline Pretreatment Facilitate Mechanical Fibrillation ofUnbleached Cellulose Pulps for Obtaining of Cellulose micro/nanofibrils (MFC)
spellingShingle Alkaline Pretreatment Facilitate Mechanical Fibrillation ofUnbleached Cellulose Pulps for Obtaining of Cellulose micro/nanofibrils (MFC)
Mendonça, Maressa
Fibras de celulose
Microfibrilas de celulose
Nanofibrilas de celulose
Tratamento alcalino
Energia de fibrilação
Propriedades mecânicas
Suspensões de fibra
Cellulose fibers
Microfibrillated cellulose
Cellulose nanofibers
Alkaline treatment
Fibrillation energy
Mechanical properties
Fiber suspensions
title_short Alkaline Pretreatment Facilitate Mechanical Fibrillation ofUnbleached Cellulose Pulps for Obtaining of Cellulose micro/nanofibrils (MFC)
title_full Alkaline Pretreatment Facilitate Mechanical Fibrillation ofUnbleached Cellulose Pulps for Obtaining of Cellulose micro/nanofibrils (MFC)
title_fullStr Alkaline Pretreatment Facilitate Mechanical Fibrillation ofUnbleached Cellulose Pulps for Obtaining of Cellulose micro/nanofibrils (MFC)
title_full_unstemmed Alkaline Pretreatment Facilitate Mechanical Fibrillation ofUnbleached Cellulose Pulps for Obtaining of Cellulose micro/nanofibrils (MFC)
title_sort Alkaline Pretreatment Facilitate Mechanical Fibrillation ofUnbleached Cellulose Pulps for Obtaining of Cellulose micro/nanofibrils (MFC)
author Mendonça, Maressa
author_facet Mendonça, Maressa
Dias, Matheus Cordazzo
Martins, Caio Cesar Nemer
Durães, Alisson Farley Soares
Damásio, Renato Augusto Pereira
Tonoli, Gustavo Henrique Denzin
author_role author
author2 Dias, Matheus Cordazzo
Martins, Caio Cesar Nemer
Durães, Alisson Farley Soares
Damásio, Renato Augusto Pereira
Tonoli, Gustavo Henrique Denzin
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Mendonça, Maressa
Dias, Matheus Cordazzo
Martins, Caio Cesar Nemer
Durães, Alisson Farley Soares
Damásio, Renato Augusto Pereira
Tonoli, Gustavo Henrique Denzin
dc.subject.por.fl_str_mv Fibras de celulose
Microfibrilas de celulose
Nanofibrilas de celulose
Tratamento alcalino
Energia de fibrilação
Propriedades mecânicas
Suspensões de fibra
Cellulose fibers
Microfibrillated cellulose
Cellulose nanofibers
Alkaline treatment
Fibrillation energy
Mechanical properties
Fiber suspensions
topic Fibras de celulose
Microfibrilas de celulose
Nanofibrilas de celulose
Tratamento alcalino
Energia de fibrilação
Propriedades mecânicas
Suspensões de fibra
Cellulose fibers
Microfibrillated cellulose
Cellulose nanofibers
Alkaline treatment
Fibrillation energy
Mechanical properties
Fiber suspensions
description As licenças de acesso aberto aplicáveis a este artigo estão em conformidade com as políticas do periódico em que foi publicado, disponíveis no link: https://v2.sherpa.ac.uk/id/publication/5687. Consulta realizada em 24 de set. de 2024.
publishDate 2022
dc.date.none.fl_str_mv 2022-06-22
2024-09-24T14:41:19Z
2024-09-24T14:41:19Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv MENDONÇA, Maressa; DIAS, Matheus Cordazzo; MARTINS, Caio Cesar Nemer; DURÃES, Alisson Farley Soares; DAMÁSIO, Renato Augusto Pereira; TONOLI, Gustavo Henrique Denzin. Alkaline pretreatment facilitate mechanical fibrillation of unbleached cellulose pulps for obtaining of cellulose micro/nanofibrils (MFC). Journal of Natural Fibers, v. 19, n. 16, p. 13385-13400, 2022. DOI: 10.1080/15440478.2022.2092252. Disponível em: https://doi.org/10.1080/15440478.2022.2092252. Acesso em: 24 set. 2024.
https://doi.org/10.1080/15440478.2022.2092252
http://repositorio.ufla.br/jspui/handle/1/59489
identifier_str_mv MENDONÇA, Maressa; DIAS, Matheus Cordazzo; MARTINS, Caio Cesar Nemer; DURÃES, Alisson Farley Soares; DAMÁSIO, Renato Augusto Pereira; TONOLI, Gustavo Henrique Denzin. Alkaline pretreatment facilitate mechanical fibrillation of unbleached cellulose pulps for obtaining of cellulose micro/nanofibrils (MFC). Journal of Natural Fibers, v. 19, n. 16, p. 13385-13400, 2022. DOI: 10.1080/15440478.2022.2092252. Disponível em: https://doi.org/10.1080/15440478.2022.2092252. Acesso em: 24 set. 2024.
url https://doi.org/10.1080/15440478.2022.2092252
http://repositorio.ufla.br/jspui/handle/1/59489
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.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 Taylor & Francis Group
publisher.none.fl_str_mv Taylor & Francis Group
dc.source.none.fl_str_mv Journal of Natural Fibers
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
_version_ 1815438933167702016

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