Accelerated weathering of wood coatings - Development of a new test cycle / Marinus Hoeflaak in EUROPEAN COATINGS JOURNAL (ECJ), N° 1-2/96 (01-02/1996)

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 1-2/96 (01-02/1996) . - p. 28-31 Titre : Accelerated weathering of wood coatings - Development of a new test cycle Type de document : texte imprimé Auteurs : Marinus Hoeflaak, Auteur ; Wolfgang F. Gard, Auteur Année de publication : 1996 Article en page(s) : p. 28-31 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : A new relatively wet test cycle for accelerated weathering of wood coatings is developed. The wet period is chosen in such a way that the maximum moisture content of test panels approaches the moisture content of test panels during outdoor exposure in the Netherlands. A long wet period during the test is essential for leaching of low molecular components from water borne paint systems. For twelve commercially available paint systems the results of the new accelerated test cycle are compared with results of outdoor exposure. This comparison is based on changes in water uptake of painted wooden test panels and on changes in visco-elastic behaviour of the paint films. The test results show clearly that the water barrier function and the visco-elastic behaviour of the paint systems can change considerably during weathering. The important role of leaching during the test is confirmed. The newly develop test cycle correlates well with outdoor exposure at Delft, the Netherlands. Note de contenu : - Coating types and preparation of test panels - Description of accelerated weathering test and outdoor exposure test - Basic requirements for a realistic accelerated test - Design of a wet test cycle for accelerated weathering - Outdoor exposure tests - Characterization of functional properties before and after weathering - Determination of changes in water barrier functions - Determination of changes in visco-elastic behaviour - Results, processing of data and calculation of correlations Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11277 [article]

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Calibrating the climate / Marinus Hoeflaak in EUROPEAN COATINGS JOURNAL (ECJ), N° 1-2/2006 (01-02/2006)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 1-2/2006 (01-02/2006) . - p. 36-41 Titre : Calibrating the climate : Coil coating study suggests how to improve accelerated weathering tests Type de document : texte imprimé Auteurs : Marinus Hoeflaak, Auteur ; Barteld de Ruiter, Auteur ; Joost H. Mass, Auteur Année de publication : 2006 Article en page(s) : p. 36-41 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Exposure testing - The performance of more than 30 different coil coated materials has been assessed in different artificial weathering tests and outdoor exposure conditions. The data highlight the very different weathering behaviour of polyester coatings and more durable non-polyester types. These results lead to suggestions for improving the accuracy of accelerated weathering tests. En ligne : https://drive.google.com/file/d/1tzJTKl4U1q-2tsenZxoFaGxnKxQFfscf/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8531 [article]

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Calibrating the climate / Marinus Hoeflaak in EUROPEAN COATINGS JOURNAL (ECJ), N° 3/2006 (03/2006)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 3/2006 (03/2006) . - p. 30-35 Titre : Calibrating the climate : Correlations between different wheathering tests Type de document : texte imprimé Auteurs : Marinus Hoeflaak, Auteur ; Barteld de Ruiter, Auteur ; Joost H. Mass Année de publication : 2006 Article en page(s) : p. 30-35 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Exposure testing - Using data from an extensive research project on coil coatings, correlations between various natural exposure and accelerated weathering tests were examined. Only one accelerated test correlated well with any exterior exposure results, and only to certain coatings. A good correlation between natural exposure tests shows, however that the methods used are highly accurate. En ligne : https://drive.google.com/file/d/17iQea1bbuY6fBspC02drAQAQiMgzlNt3/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8524 [article]

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Matching marine corrosion / Marinus Hoeflaak in EUROPEAN COATINGS JOURNAL (ECJ), N° 12/2004 (12/2004)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 12/2004 (12/2004) . - p. 20-25 Titre : Matching marine corrosion : New accelerated test gives good correlation with outdoor exposure Type de document : texte imprimé Auteurs : Marinus Hoeflaak, Auteur Année de publication : 2004 Article en page(s) : p. 20-25 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Wheathering - An extensive study of the corrosion resistance of a large number and a large variety of coatings systems for steel protection has been carried out. Whith these, three types of accelerated tests have been correlated with observation from two years of outdoor exposure in a marine environment, and good correlation was found for newly developed method. En ligne : https://drive.google.com/file/d/10PD9OV3WcyOvb1r6LrmW8HTgKzjIX99b/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9024 [article]

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