Grey UV-curable powder coatings / Zeljko Jovanovic in EUROPEAN COATINGS JOURNAL (ECJ), N° 10/00 (10/2000)

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 10/00 (10/2000) . - p. 16-24 Titre : Grey UV-curable powder coatings Type de document : texte imprimé Auteurs : Zeljko Jovanovic, Auteur ; Jules Lahaye, Auteur ; Hugh Laver, Auteur ; Sonia Megert, Auteur ; Conny Te Walvaart, Auteur Année de publication : 2000 Article en page(s) : p. 16-24 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Much has been published on the formulation of UV-curable powder coatings, nevertheless, some colours such as yellows and greys, remain difficult to cure. In greys, titanium dioxide and a black pigment together reduce the amount of UV and blue light, respectively, that is available for the α-hydroxy ketone and bis-acyl phosphine oxide photoinitiators. However, by careful selection of the black pigment and avoidance of excessive covering power, good cure performance can be achieved. Note de contenu : - A wide processing window - Diffuse transmittance determines through-curing - BAPO/AHK-photoinitiator mixture beneficial - Yellows and greys are difficult to cure - Experimental procedure - Formulation mixtures : black cures better than white - Curing improves with increasing BAPO concentration - Varying the type of black pigment changes curing performance - Better curing at higher UV-dosages with Ga-doped lamps - Covering power vs. curing performance Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11045 [article]

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The best of both worlds / Christian Kühne in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 193, N° 4462 (03/2003)

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 193, N° 4462 (03/2003) . - p. 52-54 Titre : The best of both worlds Type de document : texte imprimé Auteurs : Christian Kühne, Auteur ; Hugh Laver, Auteur ; Matthias Walter, Auteur Année de publication : 2003 Article en page(s) : p. 52-54 Langues : Anglais (eng) Catégories : Bois -- Revêtements:Bois -- Peinture Peinture poudre -- Séchage sous rayonnement ultraviolet Index. décimale : 667.9 Revêtements et enduits Résumé : It may combine the advantages of conventional powder coatings and uv-curing without the disadvantages, but can it penetrate the wood coatings market? The authors discuss the implications of uv-curable powder. UV-curable powder coating is a technology well suited to coating 3-dimensional objects in MDF. It combines most of the advantages of both conventional powder coating together with those of uv-curing without having the disadvantages - a sole exception being the difficulty of curing coatings in all colours. For coatings on MDF, uv-powder has some special features that are difficult to achieve with other wood-coating technologies, such as wrap-around coating without butt-joins and the ability to make speckled coatings. Note de contenu : - A simple process - Tough and attractive - Lifting the blanket - Dust free zones - Penetrating markets Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27942 [article]

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