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dc.creatorDias, Matheus Cordazzo-
dc.creatorZidanes, Uasmim Lira-
dc.creatorMartins, Caio Cesar Nemer-
dc.creatorOliveira, Ana Lázara Matos de-
dc.creatorDamásio, Renato Augusto Pereira-
dc.creatorResende, Jaime Vilela de-
dc.creatorVilas Boas, Eduardo Valério de Barros-
dc.creatorBelgacem, Mohamed Naceur-
dc.creatorTonoli, Gustavo Henrique Denzin-
dc.creatorFerreira, Saulo Rocha-
dc.identifier.citationDIAS, M. C. et al. Influence of hemicellulose content and cellulose crystal change on cellulose nanofibers properties. International Journal of Biological Macromolecules, [S.I.], v. 213, p. 780-790, July 2022. DOI:
dc.description.abstractThis study aimed to evaluate the properties of cellulose nanofibers (CNFs) with different hemicellulose contents and cellulose II polymorphs. A link was found between these polysaccharides and the properties of CNFs. A decrease in crystallinity (from 69 to 63%) and changes in the crystalline structure of cellulose subjected to an alkaline environment were observed, promoting the partial conversion of cellulose I to cellulose II (from 2 to 42%) and preventing CNFs production at NaOH concentrations higher than 5%. Most treatments showed pseudoplastic fluid behavior, except for the 10% NaOH treatment over 2 h, which showed Newtonian fluid behavior. The quality index of the reference CNFs (TEMPO-oxidized) was the highest (80 ± 3), followed by that of the 5% NaOH-treated (68 ± 3 and 22% energy savings compared to the untreated sample), and the untreated (63 ± 3) samples; and the 10% NaOH treatments had quality indices of 51 ± 3 and 32 ± 1, respectively.pt_BR
dc.sourceInternational Journal of Biological Macromoleculespt_BR
dc.subjectCellulose nanofiberspt_BR
dc.subjectCellulose polymorphspt_BR
dc.subjectShear rheologypt_BR
dc.subjectNanofibras de celulosept_BR
dc.subjectPolimorfos de celulosept_BR
dc.titleInfluence of hemicellulose content and cellulose crystal change on cellulose nanofibers propertiespt_BR
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