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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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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: |
LEADER 02066naa a2200253 a 4500
001 2049941
005 2017-07-11
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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Embrapa Florestas (CNPF) |
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| 1. |  | SILVA-SANTOS, A.; ANTUNES, A. M. S.; BIZZO, H. R.; D'AVILA, L. A.; SOUZA-SANTOS, L. C.; SOUZA, R. C. Analysis of uses of essential oils and terpenics/terpenoids compounds by pharmaceutical industry through USPTO granted patents. Revista Brasileira de Plantas Medicinais, Botucatu, v. 10, n. 1, p. 8-15, 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - A |
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| 4. | | PEREIRA, R. C. A.; VALENTE, L. M. M.; PINTO, J. E. B. P.; BERTOLUCCI, S. K. V.; BEZERRA, G. M.; ALVES, F. F.; SANTOS, P. F. P. dos; BENEVIDES, P. J. C.; SIANI, A. C.; ROSARIO, S. L.; MAZZEI, J. L.; d'AVILA, L. A.; GOMES, L. N. F.; AQUINO-NETO, F. R. de; EMMERICK, I. C. M.; CARVALHAES, S. F. In vitro cultivated Uncaria tomentosa and Uncaria guianensis with determination of the pentacyclic oxindole alkaloid contents and profiles. Journal of the Brazilian Chemical Society, v. 19. n. 6, p. 1193-1200, 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
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