NIR SPECTROSCOPY CAN EVALUATE THE CRYSTALLINITY AND THE TENSILE AND BURST STRENGTHS OF NANOCELLULOSIC FILMS

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dc.creatorLívia Cássia Viana
dc.creatorGraciela Ines Bolzon de Muniz
dc.creatorPaulo Ricardo Gherardi Hein
dc.creatorWashington Luiz Esteves Magalhães
dc.creatorMayara Elita Carneiro
dc.date2016
dc.date.accessioned2026-07-07T04:36:34Z
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.
dc.formatapplication/pdf
dc.identifier0717-3644
dc.identifierhttps://www.redalyc.org/articulo.oa?id=48546324009
dc.identifier.urihttp://hdl.handle.net/123456789/466693
dc.languageen
dc.publisherUniversidad del Bío Bío
dc.relationhttp://www.redalyc.org/revista.oa?id=485
dc.rightsMaderas. Ciencia y Tecnología
dc.sourceMaderas. Ciencia y Tecnología (Chile) Num.3 Vol.18
dc.subjectAgrociencias
dc.titleNIR SPECTROSCOPY CAN EVALUATE THE CRYSTALLINITY AND THE TENSILE AND BURST STRENGTHS OF NANOCELLULOSIC FILMS
dc.typeartículo científico

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Maderas. Ciencia y Tecnología - Universidad del Bío Bío