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dc.contributor.authorBacarin, Giovani Boaventura [UNESP]
dc.contributor.authorCabrera, Flávio Camargo [UNESP]
dc.contributor.authorDa Silva, Marcelo Rodrigues
dc.contributor.authorJob, Aldo Eloizo [UNESP]
dc.date.accessioned2018-12-11T17:14:42Z
dc.date.available2018-12-11T17:14:42Z
dc.date.issued2017-07-01
dc.identifierhttp://dx.doi.org/10.1590/1980-5373-MR-2016-0687
dc.identifier.citationMaterials Research, v. 20, n. 4, p. 945-950, 2017.
dc.identifier.issn1516-1439
dc.identifier.urihttp://hdl.handle.net/11449/175177
dc.description.abstractThe chemical structure and composition of lignin and hemicellulose, as well as the distribution between inner and outer layers of fiber, can adversely affect bleaching operations or fiber-fiber bond on pulp and, consequently the papermaking process. Herein, we have implemented the fractionation and mechanical peeling techniques in order to identify the fines composition from eucalyptus cellulose as well as to verify the effect over xylan and lignin contents and the impact on oxygen delignification. Lignin and xylans in the material removed from the fiber surface (fines) were measured around to 7.6% and 12% of the composition, respectively. The lignin value is three times higher than the percentage measured to original fiber composition (without treatment). The residual xylans content on the pulp, after treatment of fines removal and peeling, was slightly reduced, around 3% for both treatments as well as fractionation and peeling methods decrease the oxygen delignification efficiency.en
dc.format.extent945-950
dc.language.isoeng
dc.relation.ispartofMaterials Research
dc.sourceScopus
dc.subjectFiber surface
dc.subjectFractionation
dc.subjectLignin
dc.subjectMechanical peeling
dc.subjectOxygen delignification
dc.subjectXylans
dc.titleThe distribution of lignin and xylan in the inner and surface layers of the fiber from eucalyptus kraft pulp and its effects on oxygen delignificationen
dc.typeArtigo
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionKlabin S/A
dc.description.affiliationFaculdade de Ciências e Tecnologia - FCT Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP Departamento de Física Química e Biologia
dc.description.affiliationKlabin S/A
dc.description.affiliationUnespFaculdade de Ciências e Tecnologia - FCT Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP Departamento de Física Química e Biologia
dc.identifier.doi10.1590/1980-5373-MR-2016-0687
dc.identifier.scieloS1516-14392017000400945
dc.rights.accessRightsAcesso aberto
dc.identifier.scopus2-s2.0-85029514340
dc.identifier.fileS1516-14392017000400945.pdf
unesp.author.lattes6475585105456744[4]
unesp.author.orcid0000-0002-1979-8257[4]
dc.relation.ispartofsjr0,398
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