Viscosity determination of urea-formaldehyde using near-infrared spectroscopy

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2012

Autores

Luísa Carvalho (Autor) FEUP; Ana Henriques (Autor) FEUP; João Ferra (Autor) Outra; Paulo Cruz (Autor) Outra; Jorge Martins (Autor) Outra; Fernão Magalhães (Autor) FEUP

Ata de Conferência Internacional

Título: Forest Products Society's 66th International Convention - Forest products: Solutions for a Global Green Economy"

Páginas: 1-5

Outras Informações

Abstract (EN): FT-NIR spectroscopy was been describe with a powerful technique to on-line monitoring and control of polymerizations. . In this work this technique was used to monitoring the viscosity of urea-formaldehyde resins during the condensation reaction. The main objective of this study was to develop a chemometric technique that can be used on-line or off-line for determining the resins’ viscosity in the condensation stage. The best model uses the spectral region between 4400-4800 cm-1 and the first derivative with vector normalization for preprocessing.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5