Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative

Abstract: 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 fusi...

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Autores principales:	Zor,Mustafa, Can,Ahmet
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2021
Materias:	FT-IR impregnation poplar strength wood density wood welding.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100409
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spelling	oai:scielo:S0718-221X20210001004092021-05-30Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservativeZor,MustafaCan,Ahmet FT-IR impregnation poplar strength wood density wood welding. Abstract: 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.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.23 20212021-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100409en10.4067/s0718-221x2021000100409
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	FT-IR impregnation poplar strength wood density wood welding.
spellingShingle	FT-IR impregnation poplar strength wood density wood welding. Zor,Mustafa Can,Ahmet Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative
description	Abstract: 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.
author	Zor,Mustafa Can,Ahmet
author_facet	Zor,Mustafa Can,Ahmet
author_sort	Zor,Mustafa
title	Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative
title_short	Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative
title_full	Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative
title_fullStr	Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative
title_full_unstemmed	Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative
title_sort	shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative
publisher	Universidad del Bío-Bío
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100409
work_keys_str_mv	AT zormustafa shearstrengthinfrictionweldedjointofpoplarwoodimpregnatedwithcopperbasedwoodpreservative AT canahmet shearstrengthinfrictionweldedjointofpoplarwoodimpregnatedwithcopperbasedwoodpreservative
_version_	1714202698307338240

Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative

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