What is it about?
This work presents the application of Photoacoustic Spectroscopy in the analysis of residual defects in commercial paper. To distinguish the identity of the substances was compared the measured spectrum with the reference spectrum in the region of 200-2600 nm.
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Why is it important?
The comparison of the photoacoustic spectra was able to distinguish two kinds of national and international glue used by industry in papermaking. By the analysis of the composition of the wastes from the papermaking process, it was indicated the international glue as the most suitable starting material for the manufacturing of the final product.
Perspectives
The determination of total solids, fixed and volatile found no difference between the studied glues, probably because the two glues have the same percentage of organic and inorganic matter. However, even without complete knowledge of the composition of the glues the Photoacoustic spectroscopy has proved suitable as a tool for evaluating the quality of the starting materials, in this case the glue used for papermaking.
Professor Daniele T Dias
Federal University of Technology - Paraná
Read the Original
This page is a summary of: ANÁLISE DE DEFEITOS RESIDUAIS EM PAPEL COMERCIAL ATRAVÉS DE ESPECTROSCOPIA FOTOACÚSTICA, Revista Brasileira de Física Tecnológica Aplicada, December 2014, Universidade Tecnologica Federal do Parana (UTFPR),
DOI: 10.3895/s2358-00892014000200001.
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