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Quantitative Determination of Tetraacetylethylenediamine in Laundry Powder by FTIR Spectrometry Using Partial Least Squares Algorithm / M. Khanmohammadi in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 45, N° 3/2008 (05-06/2008)
[article]
Titre : Quantitative Determination of Tetraacetylethylenediamine in Laundry Powder by FTIR Spectrometry Using Partial Least Squares Algorithm Type de document : texte imprimé Auteurs : M. Khanmohammadi, Auteur ; M. Shanehsaz, Auteur ; A. Bagheri Garmarudi, Auteur ; K. Kargosha, Auteur Année de publication : 2008 Article en page(s) : p. 116-119 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Tetraacetylethylenediamine FTIR spectrometry Partial least squares Determination Detergent Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Attenuated total reflectance Fourier transform infrared spectrometry was applied for determination of tetraacetylethylenediamine (TAED) in commercial laundry powder samples. Investigating different spectral regions, 1724–1670 cm–1 was selected as the best region. Spectroscopic data were compared with gas chromatography results, demonstrating reliability of the proposed method, higher accuracy and precision. Standard error of estimation (SEE), standard error of prediction (SEP), correlation coefficient (R2) and root mean square error of prediction (RMSEP) was 0.022, 0.031, 0.998 and 0.138 in the selected spectral region, respectively. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3043
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 45, N° 3/2008 (05-06/2008) . - p. 116-119[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 010305 - Périodique Bibliothèque principale Documentaires Disponible Exterior wood coatings. Part-2 : modeling correlation between coating properties and their weathering performance / Mojgan Nejad in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 4 (07/2011)
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Titre : Exterior wood coatings. Part-2 : modeling correlation between coating properties and their weathering performance Type de document : texte imprimé Auteurs : Mojgan Nejad, Auteur ; Paul Cooper, Auteur Année de publication : 2011 Article en page(s) : p. 459-467 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Bois -- Revêtements protecteurs
Bois extérieursTags : 'Taches semi-transparentes' 'Traitement pression bois' 'Détérioration naturelle' 'Partial least square-regression (PLS-R) modeling' Index. décimale : 667.9 Revêtements et enduits Résumé : Understanding how a coating’s properties are related to its performance characteristics and how measuring its properties can be used for predicting the performance of coating in service was the main focus of this study. A number of exterior penetrating wood stains were characterized in terms of glass transition temperature (T g), solid content, viscosity, and surface tension. The contact angles of liquid coatings were measured on wood treated with chromated copper arsenate, alkaline copper quat, and copper azole as well as untreated wood. Also, the film thicknesses of the cured coatings on wood surfaces were measured by back-scattered electron imaging of osmium-treated samples. Partial least square-regression (PLS-R) modeling was used to correlate measured coating properties with their weathering performance on the preservative-treated and untreated wood substrates, based on water repellency, color retention, and visual ratings after 3 years of natural weathering. A PLS model was developed with 77% fitting accuracy and 69% prediction ability. This model indicated that preservative treatments significantly affected coating performance, and among coating properties, film thickness, viscosity, and glass transition temperature had the greatest effects on the coatings’ performance in exterior. DOI : 10.1007/s11998-011-9331-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-011-9331-4.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12134
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 8, N° 4 (07/2011) . - p. 459-467[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 013158 - Périodique Bibliothèque principale Documentaires Disponible