20.500.12556/RUL-138685 Treatment of wood with atmospheric plasma discharge study of the treatment process, dynamic wettability and interactions with a waterborne coating Plasma treatment is becoming a mature technique for modification of surfaces of various materials, including wood. A better insight in the treatment process and the impact of the plasma on properties of wood bulk are still needed. The study was performed on Norway spruce and common beech wood, as well as their thermally modified variations. The formations of the airborne discharge, as well as mass changes of the treated wood, were monitored. The impact of such treatment on wood-coating interaction was investigated by evaluating the dynamic wettability and penetration into wood. At the wood surface, plasma streamers were observed more intense on denser latewood regions. Wood mass loss was higher with increasing number of passes through the plasma discharge and was lower for thermally modified wood than for unmodified wood. Plasma treatment increased the surface free energy of all wood species and lowered the contact angles of a waterborne coating, these together indicating enhanced wettability after treatment. Finally, the distribution and penetration depth of the coating were studied with X-ray microtomography. It was found that the coating penetrated deeper into beech than into spruce wood. However, the treatment with plasma increased the penetration of the coating only into spruce wood. beech coatings plasma spruce wettability wood bukev premazi plazma smreka omočljivost les true false true Angleški jezik Slovenski jezik Članek v reviji 2022-08-09 12:41:43 2022-08-09 12:41:55 2023-03-17 03:33:39 0000-00-00 00:00:00 2021 0 0 Str. 603-613 iss. 7 Vol. 75 2021 0000-00-00 Zaloznikova Objavljeno apc 0000-00-00 0000-00-00 0000-00-00 630*8 1437-434X 10.1515/hf-2020-0182 43142147 RAZ_Zigon_Jure_2021.pdf RAZ_Zigon_Jure_2021.pdf 1 367B5BB9415CAFC8B5A2AFB76888143D eb1e486d4cf18eff86a0e6d19824417440e872a3b7f35250489228d30d750a08 d144460e-17d8-11ed-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=159092 https://www.degruyter.com/document/doi/10.1515/hf-2020-0182/html 1 99c385c2-17cf-11ed-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=159086 Biotehniška fakulteta 0 0 0