Effect of different pre-treatments on the redispersion capacity of spray-dried microfibrillated cellulose: elaboration and characterization of biofilms

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorSetter, Carine-
Autor(es): dc.creatorDias, Matheus Cordazzo-
Autor(es): dc.creatorMascarenhas, Adriano Reis Prazeres-
Autor(es): dc.creatorTonoli, Gustavo Henrique Denzin-
Autor(es): dc.creatorOliveira, Tiago José Pires de-
Data de aceite: dc.date.accessioned2026-02-09T11:58:50Z-
Data de disponibilização: dc.date.available2026-02-09T11:58:50Z-
Data de envio: dc.date.issued2024-01-15-
Data de envio: dc.date.issued2024-01-15-
Data de envio: dc.date.issued2023-07-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/58782-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/pii/S0141813023021736-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1151718-
Descrição: dc.descriptionThis study aimed to evaluate the influence of the addition of the cationic surfactant cetyltrimethylammonium bromide (CTAB) in microfibrillated cellulose (MFC/CNFs) suspensions submitted to different pretreatments to produce redispersible spray-dried (SD) MFC/CNFs. Suspensions pretreated with 5 % and 10 % sodium silicate and oxidized with 2,2,6,6,-tetramethylpiperidinyl-1-oxyl (TEMPO) were modified with CTAB surfactant and subsequently dried by SD. The SD-MFC/CNFs aggregates were redispersed by ultrasound to produce cellulosic films by the casting method. In summary, the results demonstrated that the addition of CTAB surfactant to the TEMPO-oxidized suspension was critical to achieving the most effective redispersion. The experimental results obtained using micrographs, optical (UV–Vis), mechanical, water vapor barrier properties, and the quality index confirmed that the addition of CTAB to the TEMPO-oxidized suspension favored the redispersion of spray-dried aggregates, development of cellulosic films with attractive properties, offering possibilities for the elaboration of new products, for example, in the production of bionanocomposites with higher mechanical performance. This research brings interesting insights into the redispersion and application of SD-MFC/CNFs aggregates, strengthening the commercialization of MFC/CNFs for industrial use.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceInternational Journal of Biological Macromolecules-
Palavras-chave: dc.subjectCellulose nanofibril-
Palavras-chave: dc.subjectHornification-
Palavras-chave: dc.subjectSurface modification-
Título: dc.titleEffect of different pre-treatments on the redispersion capacity of spray-dried microfibrillated cellulose: elaboration and characterization of biofilms-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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