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UV drying : The first industrial one step process / Jean-Pierre Fouassier in EUROPEAN COATINGS JOURNAL (ECJ), N° 4/95 (04/1995)
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Titre : UV drying : The first industrial one step process Type de document : texte imprimé Auteurs : Jean-Pierre Fouassier, Auteur ; L. Simonin-Catilaz, Auteur Année de publication : 1995 Article en page(s) : p. 272-276 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Couches épaisses
Photochimie
Réticulation (polymérisation)
Revêtements -- Séchage sous rayonnement ultraviolet:Peinture -- Séchage sous rayonnement ultravioletIndex. décimale : 667.9 Revêtements et enduits Résumé : The authors set out to investigate the various possibilities of UV- and visible light reticulation of thick, pigmented media usable in the paint industry. A new system, polymerizing paints of various colours at the thicknesses required by the household furniture industry, was worked out (> 100 μm). This is a one step process, with a working speed of 10 ml min, involving four 80 W/cm lamps. This is the only present-day system capable of working under industrial conditions. Note de contenu : - Fundamentals of a radical polymerization reaction
III- Experimental : 1) Products (a. Functionalized oligomers - b. Acrylic monomers, c. Concentrated pigment bases) -
2) Procedure (a. Calculating the maximum thickness of the polymererized layer of a formulation for a given illumination time - b. Estimating the illumination time required for the polymerization of a layer whose thckness was fixed beforehand - c. Drying unit)
- Polymerization prospects of a pigmented coating : 1) First generation initiators - 2) Effectiveness of the TPO-1184 system - 3) Advantages and limits of use of TPO in a pigmented medium
- Polymerization reactions sensitized in the presence of dyestuffs
- Hybrid initiating systems in acrylate oligomers : 1) Association of a radial initiator with an organometallic compound - 2) Association of a radical initiator with a peroxide
- The new system : Effectiveness in pigmented media : 1) Difference in reactivity according to pigment colour (a. On the labotary scale - b. On the industrial scale) - 2) Differences in reactivity according to the nature of the polymerPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11301
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 4/95 (04/1995) . - p. 272-276[article]Réservation
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