Synthesis and incorporation of poly(methyl methacrylate) microspheres with UV stabilizers in wood clear coating binder

Auteur(s): Quéant, CarolineLandry, VéronicBlanchet, PierreSchorr, Diane
Résumé: The durability of clear coatings is an important problem in the coatings industry. This problem can be partly solved with the addition of UV absorbers (UVAs) in the coating formulation. UVAs can absorb part of the UV radiation and convert it into harmless heat. Organic UVAs are prone to photodegradation and can migrate in the binder of a coating formulation. In this study, commercial UVAs have been encapsulated in poly(methyl methacrylate) microspheres using the internal phase separation method. Microspheres have been incorporated into a clear acrylic binder. The acrylic was then applied on wood panels and was placed into an artificial UV chamber. Efficiency of coatings after aging as well as chemical and physical properties were monitored using a colorimeter, FTIR spectroscopy and transmission electron microscopy. This study presents a comparison between the efficiency of free and encapsulated Tinuvin 1130 and 292 commercial absorbers. Results have shown that the coating efficiency is slightly improved when using the encapsulated products.
Type de document: Article de recherche
Date de publication: 18 juillet 2017
Date de la mise en libre accès: 18 juillet 2018
Version du document: AM
Lien permanent: http://hdl.handle.net/20.500.11794/14721
Ce document a été publié dans: Journal of Coatings Technology and Research
https://doi.org/10.1007/s11998-017-9943-4
Federation of Societies for Coatings Technology
Autre version disponible: 10.1007/s11998-017-9943-4
Collection :Articles publiés dans des revues avec comité de lecture

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