| Titre : |
UV cured pigmented epoxy acrylate coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Firdous Habib, Auteur ; Madhu Bajpai, Auteur |
| Année de publication : |
2009 |
| Article en page(s) : |
p. 18-21 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Acrylates Les monomères acrylates sont un groupe d'esters faisant partie des vinyles, car renfermant une double liaison carbone-carbone et sont utilisés pour former des polyacryliques qui ont de multiples usages.
Epoxydes
Pigments
Revêtements -- Séchage sous rayonnement ultraviolet
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Radiation curing technology has encountered increased applications in recent years. UV curable systems have found wide application in clear coatings. However, despite the advantages of ultraviolet curable coatings, drawbacks still persist in some areas. One of these well known problems relates to through curing of pigments coatings. The common explanation for these particular problems is that pigments, by absorbing ultraviolet radiation, compete with the photoinitiators and thus diminish their effectiveness. This results in poor through curing and consequently in poor adhesion. Thus pigments used inthe UV curable coating systems should not absorb radiation in the same region as the photoinitiators. One of the solutions to such a problem is reported in this paper by developing a UV curing system based on pigmented acrylate formulation. A coating formulation is the mixture of novolac acrylate resin, monomer, titanium dioxide pigment and photoinitiator 2,2 dimethyl-2-hydroxy acetophenone (darocure 1173). Concentration of titanium dioxide in the formulation was varied to evaluate their effect on physical and chemical properties. |
| En ligne : |
https://drive.google.com/file/d/1T1fbtvEhhH-r4eVjI-9uC3Bds37ymUJ5/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7458 |
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 199, N° 4542 (11/2009) . - p. 18-21
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UV cured pigmented epoxy acrylate coatings in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 199, N° 4542 (11/2009)
