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The effect of natural weathering on stability of coating system with self-healing microcapsules
Názov The effect of natural weathering on stability of coating system with self-healing microcapsules Aut.údaje Zuzana Vidholdová ... [et al.] Preklad názvu podnázvu : Vplyv prirodzeného zvetrávania na stabilitu náterového systému so samoopravnými mikrokapsulami Spoluautori Vidholdová Zuzana TUZDFDT - Katedra drevárskych technológií Slabejová Gabriela TUZDFNDV - Katedra nábytku a drevárskych výrobkov Kúdela Jozef TUZDFNOD - Katedra náuky o dreve Svocák Ján Zdroj.dok. Acta Facultatis Xylologiae Zvolen : vedecký časopis Drevárskej fakulty. Vol. 66, no. 2 (2024), s. 35-49. - Zvolen : Technická univerzita vo Zvolene, 2024 Poznámky Lit. Jazyk dok. angličtina Krajina Slovenská republika Systematika 551.3.053 Heslá adhézne vlastnosti - adhesion properties * farebná stabilita - colour stability * odolnosť proti nárazu - impact resistance * samoopravné nátery - self-healing coatings * prirodzené starnutie - seasoning * zvetrávanie - weathering Anotácia The performance of self-healing and standard coating systems on oak wood exposed to natural weathering for two years is investigated in the paper. The changes in coating thickness, colour coordinates L*, a*, b*, total colour difference ΔE*ab, impact resistance, and adhesion by Pull-off and Cross-cut tests are evaluated in the study. The results show that while both coating system types displayed slight colour alterations, the self-healing coating system containing microcapsules exhibited more colour stability, maintaining a colour difference (ΔE*ab) of 2.6. The primary factors contributing to colour change were variations in lightness (L*) and, to a* lesser degree, the b* coordinate leading to subtle darkening and yellowing of the coatings. However, the self-healing coating system exhibited lower impact resistance indicating increased brittleness and susceptibility to cracking corresponding to the standard coating system. Regarding adhesion, the self-healing coating system showed no changes after weathering, as measured by the Pull-off and Cross-cut tests. In contrast, the standard coating system experienced a 32% reduction in adhesion in the Pull-off test. These findings suggest that although self-healing coatings may offer advantages in colour retention, their application on exterior wood surfaces, particularly those exposed to mechanical stress, requires careful consideration. URL https://df.tuzvo.sk/sites/default/files/04-02-24_0.pdf Kategória publikačnej činnosti ADN Báza dát xcla - ČLÁNKY Druh dok. RBX - rozpis článkov z periodík Odkazy PERIODIKÁ-Súborný záznam periodika Čísla 2024: 2 
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Počet záznamov: 1