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Cellulose nanowhiskers from coconut husk fibers: Effect of preparation conditions on their thermal and morphological behavior

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dc.contributor.authorRosa, M. F.
dc.contributor.authorMedeiros, E. S.
dc.contributor.authorMalmonge, J. A. [UNESP]
dc.contributor.authorGregorski, K. S.
dc.contributor.authorWood, D. F.
dc.contributor.authorMattoso, L. H. C.
dc.contributor.authorGlenn, G.
dc.contributor.authorOrts, W. J.
dc.contributor.authorImam, S. H.
dc.contributor.institutionUSDA ARS
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:29:52Z
dc.date.available2014-05-20T13:29:52Z
dc.date.issued2010-05-23
dc.description.abstractCellulose nanowhiskers were prepared by sulfuric acid hydrolysis from coconut husk fibers which had previously been submitted to a delignification process. The effects of preparation conditions on the thermal and morphological behavior of the nanocrystals were investigated. Cellulose nanowhisker suspensions were characterized by Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), thermogravimetric analysis (TGA) and X-ray diffraction. Results showed that it was possible to obtain ultrathin cellulose nanowhiskers with diameters as low as 5 nm and aspect ratio of up to 60. A possible correlation between preparation conditions and particle size was not observed. Higher residual lignin content was found to increase thermal stability indicating that by controlling reaction conditions one can tailor the thermal properties of the nanowhiskers. Published by Elsevier Ltd.en
dc.description.affiliationUSDA ARS, Bioprod Chem & Engn Res Unit, WRRC, Albany, CA 94710 USA
dc.description.affiliationEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Agroind Trop, BR-60511110 Fortaleza, Ceara, Brazil
dc.description.affiliationEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Instrumentacao Agropecuaria, Lab Nacl Nanotecnol Agronegocio, BR-13560970 São Carlos, SP, Brazil
dc.description.affiliationSão Paulo State Univ, UNESP, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ, UNESP, BR-15385000 Ilha Solteira, SP, Brazil
dc.format.extent83-92
dc.identifierhttp://dx.doi.org/10.1016/j.carbpol.2010.01.059
dc.identifier.citationCarbohydrate Polymers. Oxford: Elsevier B.V., v. 81, n. 1, p. 83-92, 2010.
dc.identifier.doi10.1016/j.carbpol.2010.01.059
dc.identifier.issn0144-8617
dc.identifier.urihttp://hdl.handle.net/11449/10128
dc.identifier.wosWOS:000277953500013
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofCarbohydrate Polymers
dc.relation.ispartofjcr5.158
dc.relation.ispartofsjr1,428
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectNanowhiskersen
dc.subjectCellulose nanocrystalsen
dc.subjectCoconut husk fiberen
dc.subjectNanofiberen
dc.subjectThermal behavioren
dc.subjectMorphologyen
dc.titleCellulose nanowhiskers from coconut husk fibers: Effect of preparation conditions on their thermal and morphological behavioren
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Engenharia, Ilha Solteirapt
unesp.departmentFísica e Química - FEISpt

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Ilha Solteira - FEIS - Faculdade de Engenharia