The influence of surface finishing of Paulownia Siebold et Zucc. on the mechanical properties of lacquered surface | Утицај система површинске обраде Paulownia Siebold et Zucc. на механичка својства лакиране површине
2010
Јаић, М., Универзитет у Београду, Београд (Serbia). Шумарски факултет | Добић, Ј., R and D Wood - Таркетт д.о.о., Бачка Паланка (Serbia) | Палија, Т., Универзитет у Београду, Београд (Serbia). Шумарски факултет
This paper presents the research of influence of sanding, staining and the use of polyurethane and acrylic coating on the adhesion, scratch resistance and abrasion resistance of the coating. Objective was to determine the most important mechanical properties of lacquered surfaces, considering the application of Paulownia elongata and Paulownia fortunei, by using different systems of surface finishing. Values of adhesion, scratch resistance and abrasion resistance showed that none of these properties is depend of the applied system of sanding, as well as of the wood species that were taken as a substrate. The greatest scratch resitance had samples with highest dry film thickness. The research confirmed that the applied UV acrylic coating was more elastic than PU coating, while the PU coating was harder than UV acrylic coatings. As the wood species of the genus Paulownia characterized by very low density and hardness, applying PU coating for surface finishing of Paulownia elongata and Paulownia fortunei is more appropriate than the applying UV acrylic coating, when looking at wood protection against mechanical impact, especially when it comes to scratching resistance.
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