Penetration of waterborne coatings on model wood substrates
Wood is a natural renewable material widely applied for construction, both interior and exterior. Because of being a material highly susceptible to degradation, coatings are often used for its protection. For the long-term performance, the wood-coating interface is of major interest as it determines e.g., the adhesion of the coatings. If the coating/wood interface fails, the coating will disintegrate within a short time and will blister, crack and peel. This failure can result in damage to the wood surface and in more costly and difficult refinishing. Coating adhesion is determined, among other factors, by its penetration through the wood interface. For the specific case of waterborne coatings, it is difficult to characterize their penetration by means of common techniques such as microscopies or tomographies as they do not typically fill the wood cell lumen. Instead, it is more likely that waterborne coatings penetrate the wood cell surfaces instead. At present, there is not a well-established methodology for these studies. We aim at proving with this experiment that Neutron Reflectometry is an optimal tool for these studies.
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SOTRES Javier; BARKER Robert; H Boyd; Juan Francisco; GUTFREUND Philipp; KLECHIKOV Alexey and SKINGLE Chloe. (2018). Penetration of waterborne coatings on model wood substrates. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-04-136
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