Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/41705
Título : Calibrations based on Near Infrared Spectroscopic data to estimate wood-cement panel properties
Autor: Hein, Paulo Ricardo Gherardi
Sá, Vânia Aparecida
Bufalino, Lina
Mendes, Lourival Marin
Palavras-chave: Partial least squares regression
Wood products
Internal bond
Water absorption
Thickness swelling
Espectroscopia de infravermelho próximo
Painéis cimento-madeira - Propriedades
Regressão dos mínimos quadrados parciais
Produtos de madeira
Água - Absorção
Publicador: College of Natural Resources - North Carolina State University
Data da publicação: 2009
Referência: HEIN, P. R. G. et al. Calibrations based on Near Infrared Spectroscopic data to estimate wood-cement panel properties. BioResources, Raleigh, v. 4, n. 4, p. 1620-1634, 2009.
Abstract: Some scientific contributions have used near infrared (NIR) spectroscopy as a rapid and reliable tool for characterizing engineered wood products. However, to our knowledge, there are no published papers that used this technique in order to evaluate wood-cement panels. The main objective of this paper was to evaluate the ability of NIR spectroscopy to estimate physical and mechanical properties in wood-cement panels. The wood-cement panels were produced using Eucalyptus grandis x E. urophylla, Pinus taeda, and Toona ciliata woods with Portland cement under different manufacturing conditions. Wood-cement panels were characterized by traditional methods, and Partial Least Squares regressions were used to build calibrations. Our cross-validated models for MOR, IB, and TS24h of the panels yielded good coefficients of determination (0.80, 0.82, and 0.91, respectively). Based on the significant absorption bands and regression coefficients of the PLS models, our results indicate that cellulose and aromatic groups in lignin are components that play an important role in the calibrations.
URI: https://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_04_4_1620_Hein_SBM_Calib_NIR_Spectra_Wood_Cement/0
http://repositorio.ufla.br/jspui/handle/1/41705
Idioma: en_US
Aparece nas coleções:DCF - Artigos publicados em periódicos

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