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| Registros recuperados : 14 | |
| 3. |  | BOLZON DE MUÑIZ, G. I.; MAGALHAES, W. L. E.; CARNEIRO, M. E.; VIANA, L. C. Fundamentos e estado da arte da espectroscopia no infravermelho próximo no setor de base florestal. Ciência Florestal, Santa Maria, RS, v. 22, n. 4, p. 865-875, out./dez. 2012.| Biblioteca(s): Embrapa Florestas. |
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| 8. | | VIANA, L. C.; TRUGILHO, P. F.; HEIN, P. R. G.; SILVA, J. M. da; LIMA, J. T. Modelos de calibração e a espectroscopia no infravermelho próximo para predição das propriedades químicas e da densidade básica da madeira de Eucalyptus. Ciência Florestal, Santa Maria, v. 20, n. 2, p. 367-376, abr./jun. 2010.| Biblioteca(s): Embrapa Florestas. |
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| 9. | | VIANA, L. C.; BOLZON DE MUNIZ, G. I.; HEIN, P. R. G.; MAGALHAES, W. L. E.; CARNEIRO, M. E. NIR spectrocospy can evaluate the crystallinity and the tensile and burst strenghts of nanocellulosic films. Maderas. Ciencia y Tecnología, Concepción, v. 18, n. 3, p. 493-504, jul. 2016.| Biblioteca(s): Embrapa Florestas. |
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| 11. | | MUNIZ, G. I. B. de; IWAKIRI, S.; VIANA, L. C.; ANDRADE, M.; WEBER, C.; ALMEIDA, V. C. Production of plywood panels from Pinus taeda using veneers of differing densities and phenol-formaldehyde resin with high and low molecular weights. Cerne, Lavras, v. 19, n. 2, p. 315-321, abr./jun. 2013.| Biblioteca(s): Embrapa Florestas. |
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| 12. | | VIANA, L. C.; BOLZON DE MUÑIZ, G. I.; MAGALHAES, W. L. E.; ANDRADE, A. S. de; NIGOSKI, S.; POTULSKI, D. C. Nanostructured films produced from the bleached Pinus sp. kraft pulp. Floresta e Ambiente, Seropédica, v. 26, n. 4, e20150191, July 2019. 10 p.| Biblioteca(s): Embrapa Florestas. |
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| 13. | | IWAKIRI, S.; MATOS, J. L. M. de; PINTO, J. A.; VIANA, L. C.; SOUZA, M. M. de; TRIANOSKI, R.; ALMEIDA, V. C. Produção de painéis laminados unidirecionais - LVL com lâminas de Schizolobium amazonicum, Eucalyptus saligna e Pinus taeda. Cerne, Lavras, v. 16, n. 4, p. 557-563, out./dez. 2010.| Biblioteca(s): Embrapa Florestas. |
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| 14. | | MAGALHAES, W. L. E.; CADEMARTORI, P. H. G. de; BOLZON DE MUNIZ, G. I.; CARNEIRO, M. E.; LENGOWSKI, E. C.; MATTOS, B. D.; LOURENÇON, T. V.; VIANA, L. C.; KUMODE, M. M. N. Nanotechnology applied to forest sector: some researches at Embrapa Forestry. In: CANADA - BRAZIL WORKSHOP ON SUSTAINABLE NANOMATERIALS, 3., 2014, Belo Horizonte. General program. [S.l.]: Ministério da Ciência e Tecnologia, 2014. p. 14. Abstract.| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 14 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
01/08/2016 |
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Data da última atualização: |
11/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
VIANA, L. C.; BOLZON DE MUNIZ, G. I.; HEIN, P. R. G.; MAGALHAES, W. L. E.; CARNEIRO, M. E. |
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Afiliação: |
Lívia Cássia Viana, UFPR; Graciela Ines Bolzon de Muniz, UFPR; Paulo Ricardo Gherardi Hein, UFLA; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Mayara Elita Carneiro, UFPR. |
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Título: |
NIR spectrocospy can evaluate the crystallinity and the tensile and burst strenghts of nanocellulosic films. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Maderas. Ciencia y Tecnología, Concepción, v. 18, n. 3, p. 493-504, jul. 2016. |
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DOI: |
10.4067/S0718-221X2016005000044 |
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Idioma: |
Inglês |
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Conteúdo: |
The 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. |
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Palavras-Chave: |
Infravermelho próximo; Nanocelulose; NIR. |
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Thesagro: |
Propriedade mecânica. |
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Thesaurus NAL: |
Mechanical properties; Pinus. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/145940/1/2016-Washington-Maderas-NIR-spectrocospy.pdf
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Marc: |
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008 2016 bl uuuu u00u1 u #d
024 7 $a10.4067/S0718-221X2016005000044$2DOI
100 1 $aVIANA, L. C.
245 $aNIR spectrocospy can evaluate the crystallinity and the tensile and burst strenghts of nanocellulosic films.$h[electronic resource]
260 $c2016
520 $aThe 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.
650 $aMechanical properties
650 $aPinus
650 $aPropriedade mecânica
653 $aInfravermelho próximo
653 $aNanocelulose
653 $aNIR
700 1 $aBOLZON DE MUNIZ, G. I.
700 1 $aHEIN, P. R. G.
700 1 $aMAGALHAES, W. L. E.
700 1 $aCARNEIRO, M. E.
773 $tMaderas. Ciencia y Tecnología, Concepción$gv. 18, n. 3, p. 493-504, jul. 2016.
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