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      EFFECT OF ARTIFICIAL WEATHERING AND TEMPERATURE CYCLING ON THE ADHESION STRENGTH OF WATERBORNE ACRYLATE COATING SYSTEMS USED FOR WOODEN WINDOWS

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          Abstract

          The adhesion of coatings to wood is important for their long-term performance. In this study, the adhesion strength of water-based acrylate coatings used for wooden windows after exposure to artificial weathering (AW) and temperature cycling (TC) was investigated. The analysis of the adhesion quality of coatings was performed via a pull-off test and failure characteristics. The 3-layered and 4-layered white and brown acrylate dispersions from six different producers were compared and the effect of coating thickness on adhesion strength was investigated. The adhesion strength values proved to be very variable. After AW, the adhesion strength and its variability increased for all the samples. TC had no statistically significant effect on the adhesion strength values. White coating systems were initially characterized by lower adhesion strength, but after AW and TC, they reached higher adhesion strength values than brown ones. The overall highest adhesion after AW and TC was recorded for the coatings based on alkyd-acrylate hybrid basis (Producer 3), while the lowest adhesion variability after AW was measured for one type of tested acrylate coating (Producer 4). The effect of different layering on adhesion strength was not demonstrated in this study.

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          Most cited references 35

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          A note on the influence of extractives on the photo-discoloration and photo-degradation of wood

           K.K Pandey (2005)
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            Evaluation of the photo stabilising efficiency of clear coatings comprising organic UV absorbers and mineral UV screeners on wood surfaces

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              Effects of adding TiO2 nanoparticles to a water-based varnish for wood applied to nine tropical woods of Costa Rica exposed to natural and accelerated weathering

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                Author and article information

                Journal
                jgrb
                Journal of Green Building
                College Publishing
                1552-6100
                1943-4618
                1943-4618
                Winter 2020
                : 15
                : 1
                : 1-14
                Author notes

                1–5. Faculty of Forestry and Wood Sciences, Czech University of Life Sciences in Prague, Kamycka 129, Prague 165 00, Czech Republic

                *Corresponding author: oberhofnerova@ 123456fld.czu.cz
                Article
                jgb.15.1.1
                10.3992/1943-4618.15.1.1
                ©2020 by College Publishing. All rights reserved.
                Page count
                Pages: 14
                Product
                Categories
                RESEARCH ARTICLES

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