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

Authors: Quéant, CarolineLandry, VéronicBlanchet, PierreSchorr, Diane
Abstract: 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.
Document Type: Article de recherche
Issue Date: 18 July 2017
Open Access Date: 18 July 2018
Document version: AM
This document was published in: Journal of Coatings Technology and Research
Federation of Societies for Coatings Technology
Alternative version: 10.1007/s11998-017-9943-4
Collection:Articles publiés dans des revues avec comité de lecture

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