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dc.contributor.authorVIANA, L. C.pt_BR
dc.contributor.authorBOLZON DE MUNIZ, G. I.pt_BR
dc.contributor.authorHEIN, P. R. G.pt_BR
dc.contributor.authorMAGALHAES, W. L. E.pt_BR
dc.contributor.authorCARNEIRO, M. E.pt_BR
dc.date.accessioned2016-08-01T11:11:11Zpt_BR
dc.date.available2016-08-01T11:11:11Zpt_BR
dc.date.created2016-08-01pt_BR
dc.date.issued2016pt_BR
dc.identifier.citationMaderas. Ciencia y Tecnología, Concepción, v. 18, n. 3, p. 493-504, jul. 2016.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1049941pt_BR
dc.descriptionThe near infrared (NIR) spectroscopy presents itself as an interesting non-destructive test tool as it enables a fast, simple and reliable way for characterizing large samplings of biological materials in a short period of time. This work aimed to establish multivariate models to estimate the crystallinity indices and tensile and burst strength of cellulosic and nanocellulosic films through NIR spectroscopy. NIR spectra were recorded from the films before tensile and bursting strength, and crystallinity tests. Spectral information were correlated with reference values obtained by laboratory procedures through partial least square regression (PLS-R). The PLS-R model for estimating the crystallinity index presented a coefficient of determination in cross-validation (R2cv) of 0,94 and the ratio of performance to deviation (RPD) was 3,77. The mechanical properties of the films presented a high correlation with the NIR spectra: R2p = 0,85 (RPD = 2,23) for tensile and R2p = 0,93 (RPD = 3,40) for burst strength. The statistics associated to the models presented have shown that the NIR spectroscopy has the potential to estimate the crystallinity index and resistance properties of cellulose and nanocellulose films on in-line monitoring systems.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectNIRpt_BR
dc.subjectNanocelulosept_BR
dc.subjectInfravermelho próximopt_BR
dc.titleNIR spectroscopy can evaluate the crystallinity and the tensile and burst strengths of nanocellulosic films.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2017-07-11T11:11:11Zpt_BR
dc.subject.thesagroPropriedade mecânicapt_BR
dc.subject.nalthesaurusPinuspt_BR
dc.subject.nalthesaurusMechanical propertiespt_BR
riaa.ainfo.id1049941pt_BR
riaa.ainfo.lastupdate2017-07-11pt_BR
dc.identifier.doi10.4067/S0718-221X2016005000044pt_BR
dc.contributor.institutionLívia Cássia Viana, UFPR; Graciela Ines Bolzon de Muniz, UFPR; Paulo Ricardo Gherardi Hein, UFLA; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Mayara Elita Carneiro, UFPR.pt_BR
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