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2017, vol. 45, br. 3, str. 405-411
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Istraživanje efekta atmosferskih agenata na premaze drveta
Investigating the effects of weathering on wood coatings
Sažetak
Cilj ovog istraživanja jeste razjašnjenje efekata atmosferskih uticaja na lakirano drvo za spoljašnju upotrebu. Pomoću analitičke tehnike kao što su DSC, DMA, test na zatezanje, UV/VIS i FTIR-ATR spektroskopije, moguće je identi-fikovati i meriti stepen oštećenja, hemijske, fizičke i mehaničke promene izazvane degradacijom. Rezultati mogu da poboljšaju predviđenu sposobnost performanse premaza (ostakljivanje, elastičnost, prenos svetlosti) i pomognu u proceni zaštitne sposobnosti svetlosno stabilizujućih aditiva, kako bi se zadovoljile potrebe proizvođača premaza i korisnika.
Abstract
The aim of this study is to elucidate the effects of weathering on wood coatings for exterior use. By means of analytical techniques as DSC, DMA, tensile test, UV/Vis and FTIR-ATR spectroscopies, it is possible to identify and measure the degree of damage, and so the chemical, physical and mechanical changes caused by degradation phenomena. The results can improve the predictive capability on coatings' performance (glass transition, elasticity, light transmission) and help the assessment of the protective ability of light-stabilizing additives, in order to satisfy the requirements of coating producers and users.
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