Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative
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| Format: | Artículo científico |
| Langue: | en |
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Universidad del Bío Bío
2021
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| _version_ | 1876439696254435328 |
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| author | Mustafa Zor |
| author_facet | Mustafa Zor |
| contents | Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative Mustafa Zor Ahmet Can Agrociencias FT IR poplar strength impregnation Environmentally friendly processes are of great interest and considerably needed due to the worldwide problem of pollution. Linear vibration welding of timber structural elements provides new opportunities to potentially achieve structural joints. Mechanically induced vibrational wood fusion welding is shown to be due mostly to the melting and flowing of some amorphous, cells-interconnecting polymer material in the structure of wood, mainly lignin, but also hemicelluloses. In this study, poplar (Populus euramericana) samples were impregnated with alkaline copper quat (ACQ) in order to enhance welding performance. Chemical changes of the impregnated and welded specimens were characterized by FT-IR techniques. A decrease in the proportion of unoxidized phenolic groups in the lignin was observed by FT-IR and the decreased joint strength observed is impregnated wood. After impregnation, shear strength decreased by 37 % to 54%. The X-ray CT-scanning results revealed that the average density of the poplar wood (368 kg/m3) increased to 710 kg/m3 by welding. 2021 artículo científico 0717-3644 https://www.redalyc.org/articulo.oa?id=48565417009 https://www.redalyc.org/journal/485/48565417009/ https://www.redalyc.org/journal/485/48565417009/html/ https://www.redalyc.org/journal/485/48565417009/48565417009.epub https://www.redalyc.org/journal/485/48565417009/movil en http://www.redalyc.org/revista.oa?id=485 Maderas. Ciencia y Tecnología application/pdf Universidad del Bío Bío Maderas. Ciencia y Tecnología (Chile) Vol.23 |
| format | Artículo científico |
| id | redalyc_48565417009 |
| institution | Redalyc |
| language | en |
| publishDate | 2021 |
| publisher | Universidad del Bío Bío |
| spellingShingle | Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative Mustafa Zor Agrociencias FT IR poplar strength impregnation Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative Mustafa Zor Ahmet Can Agrociencias FT IR poplar strength impregnation Environmentally friendly processes are of great interest and considerably needed due to the worldwide problem of pollution. Linear vibration welding of timber structural elements provides new opportunities to potentially achieve structural joints. Mechanically induced vibrational wood fusion welding is shown to be due mostly to the melting and flowing of some amorphous, cells-interconnecting polymer material in the structure of wood, mainly lignin, but also hemicelluloses. In this study, poplar (Populus euramericana) samples were impregnated with alkaline copper quat (ACQ) in order to enhance welding performance. Chemical changes of the impregnated and welded specimens were characterized by FT-IR techniques. A decrease in the proportion of unoxidized phenolic groups in the lignin was observed by FT-IR and the decreased joint strength observed is impregnated wood. After impregnation, shear strength decreased by 37 % to 54%. The X-ray CT-scanning results revealed that the average density of the poplar wood (368 kg/m3) increased to 710 kg/m3 by welding. 2021 artículo científico 0717-3644 https://www.redalyc.org/articulo.oa?id=48565417009 https://www.redalyc.org/journal/485/48565417009/ https://www.redalyc.org/journal/485/48565417009/html/ https://www.redalyc.org/journal/485/48565417009/48565417009.epub https://www.redalyc.org/journal/485/48565417009/movil en http://www.redalyc.org/revista.oa?id=485 Maderas. Ciencia y Tecnología application/pdf Universidad del Bío Bío Maderas. Ciencia y Tecnología (Chile) Vol.23 |
| title | Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative |
| topic | Agrociencias FT IR poplar strength impregnation |
| url | https://www.redalyc.org/articulo.oa?id=48565417009 https://www.redalyc.org/journal/485/48565417009/ https://www.redalyc.org/journal/485/48565417009/html/ https://www.redalyc.org/journal/485/48565417009/48565417009.epub https://www.redalyc.org/journal/485/48565417009/movil |