Fibers pre-treatments with sodium silicate affect the properties of suspensions, films, and quality index of cellulose micro/nanofibrils

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorMascarenhas, Adriano Reis Prazeres-
Autor(es): dc.creatorScatolino, Mário Vanoli-
Autor(es): dc.creatorDias, Matheus Cordazzo-
Autor(es): dc.creatorMartins, Maria Alice-
Autor(es): dc.creatorMelo, Rafael Rodolfo de-
Autor(es): dc.creatorDamásio, Renato Augusto Pereira-
Autor(es): dc.creatorMendonça, Maressa Carvalho-
Autor(es): dc.creatorTonoli, Gustavo Henrique Denzin-
Autor(es): dc.creatorTonoli, Gustavo Henrique Denzin-
Data de aceite: dc.date.accessioned2026-02-09T12:03:41Z-
Data de disponibilização: dc.date.available2026-02-09T12:03:41Z-
Data de envio: dc.date.issued2024-09-24-
Data de envio: dc.date.issued2024-09-24-
Data de envio: dc.date.issued2022-07-19-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/59495-
Fonte completa do material: dc.identifierhttps://doi.org/10.1515/npprj-2022-0037-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1153464-
Descrição: dc.descriptionAs 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/36461. Consulta realizada em 24 de set. de 2024.-
Descrição: dc.descriptionThe characteristics of cellulose micro/nanofibrils (MFC/CNF) can be improved with pre-treatments of the original fibers. The present work is proposed to study pre-treatment with sodium silicate (Na2SiO3) on bleached fibers of Eucalyptus sp. (EUC) and Pinus sp. (PIN) and its effects on the quality index of MFC/CNF. Particle homogeneity, turbidity, and microstructure of the suspensions were evaluated. Similarly, the physical-mechanical, and barrier properties of the films were studied. With the results obtained for suspensions and films, the quality index (QI) was MFC/CNF calculated. The smallest particle dimension was observed for MFC/CNF of Pinus sp. with 10 % of Na2SiO3, as well as the lowest turbidity (∼350 NTU) was obtained for MFC/CNF of Pinus sp. with 5 % of Na2SiO3. The pre-treatments reduced the transparency of the films by ∼25 % for EUC and ∼20 % for PIN. The films presented a suitable barrier to UVC radiation, water vapor, and oil. The tensile strength of EUC and PIN films was increased by 20 % using 10 % of Na2SiO3. The same concentration of Na2SiO3 provided QI 70 for EUC MFC/CNF. The Na2SiO3 was efficient to obtain the MFC/CNF with interesting properties and suitable to generate films with parameters required for packaging.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherDe Gruyter-
Direitos: dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International-
Direitos: dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International-
Direitos: dc.rightsacesso aberto-
Direitos: dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0/-
Direitos: dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0/-
???dc.source???: dc.sourceNordic Pulp & Paper Research Journal-
Palavras-chave: dc.subjectMicrofibrilas de celulose-
Palavras-chave: dc.subjectNanofibrilas de celulose-
Palavras-chave: dc.subjectSuspensões de fibras-
Palavras-chave: dc.subjectFilmes biofuncionais-
Palavras-chave: dc.subjectPre-tratamento com silicato de sódio-
Palavras-chave: dc.subjectPropriedades de barreira-
Palavras-chave: dc.subjectPropriedades mecânicas-
Palavras-chave: dc.subjectCellulose microfibrils-
Palavras-chave: dc.subjectCellulose nanofibrils-
Palavras-chave: dc.subjectFiber suspensions-
Palavras-chave: dc.subjectBiofunctional films-
Palavras-chave: dc.subjectSodium silicate pretreatment-
Palavras-chave: dc.subjectBarrier properties-
Palavras-chave: dc.subjectMechanical properties-
Título: dc.titleFibers pre-treatments with sodium silicate affect the properties of suspensions, films, and quality index of cellulose micro/nanofibrils-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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