Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/103680
Author(s): Luísa Carvalho
Ana Henriques
João Ferra
Paulo Cruz
Jorge Martins
Fernão Magalhães
Title: Viscosity determination of urea-formaldehyde using near-infrared spectroscopy
Issue Date: 2012
Abstract: FT-NIR spectroscopy was been describe with a powerful technique to on-line monitoring andcontrol of polymerizations. . In this work this technique was used to monitoring the viscosity ofurea-formaldehyde resins during the condensation reaction. The main objective of this study wasto develop a chemometric technique that can be used on-line or off-line for determining theresins' viscosity in the condensation stage. The best model uses the spectral region between4400-4800 cm-1 and the first derivative with vector normalization for preprocessing.
URI: https://hdl.handle.net/10216/103680
Source: Forest Products Society's 66th International Convention - Forest products: Solutions for a Global Green Economy"
Document Type: Artigo em Livro de Atas de Conferência Internacional
Rights: openAccess
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

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