Pre-treatment with calcium hydroxide and accelerated carbonation for cellulosic pulp fibrillation

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorArantes, Lorran de Sousa-
Autor(es): dc.creatorMascarenhas, Adriano Reis Prazeres-
Autor(es): dc.creatorScatolino, Mário Vanoli-
Autor(es): dc.creatorTonoli, Gustavo Henrique Denzin-
Autor(es): dc.creatorMendes, Lourival Marin-
Autor(es): dc.creatorBorges, Ianca Oliveira-
Autor(es): dc.creatorGuimarães Júnior, José Benedito-
Data de aceite: dc.date.accessioned2026-02-09T11:13:44Z-
Data de disponibilização: dc.date.available2026-02-09T11:13:44Z-
Data de envio: dc.date.issued2023-06-06-
Data de envio: dc.date.issued2023-06-06-
Data de envio: dc.date.issued2022-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/56947-
Fonte completa do material: dc.identifierhttps://www.degruyter.com/document/doi/10.1515/npprj-2022-0101/html-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1136389-
Descrição: dc.descriptionIn this study, the effect of different concentrations of calcium hydroxide (Ca(OH)2) was evaluated as a pre-treatment for accelerated carbonation and its influence on the fibrillation of cellulosic pulps to obtain nanofibrils, and its application as a coating agent for papers. Eucalyptus (EUC) and Pine (PIN) unbleached cellulosic fibers were submitted to pre-treatment with Ca(OH)2 at concentrations of 5 and 10% and subjected to accelerated carbonation, being subsequently mechanically fibrillated to produce cellulose nanofibrils (CNF). Pretreatment with calcium hydroxide followed by accelerated carbonation provided a 35% reduction in energy consumption. Cellulosic pulps EUC and PIN pretreated with calcium hydroxide showed higher fibrillation efficiency. There was a reduction in the cobb test values for papers coated with CNF in PIN. The WVP was lower for papers coated with CNF of EUC and control PIN. The CNF coating of EUC and PIN provided an oil barrier for the kit 11 solution. The CNF coating improved the dispersion of PVA and PVOH. The papers coated in this work have the potential to be used as packaging for fatty and oily foods or as a spreading agent for other industrial coatings.-
Idioma: dc.languageen-
Publicador: dc.publisherDe Gruyter-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceNordic Pulp & Paper Research Journal-
Palavras-chave: dc.subjectCobb test-
Palavras-chave: dc.subjectEnergy consumption-
Palavras-chave: dc.subjectMechanical fibrillation-
Palavras-chave: dc.subjectPackaging-
Palavras-chave: dc.subjectSack kraft paper-
Título: dc.titlePre-treatment with calcium hydroxide and accelerated carbonation for cellulosic pulp fibrillation-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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