Bonding quality of two lesser-used wood species Brachystegia spiciformis and Julbernardia globiflora from Mozambique

Abstract: The objective of this study was to evaluate the density, chemical properties and bonding quality of two lesser-used Mozambican wood species known as messassas (Brachystegia spiciformis and Julbernardia globiflora) aiming at edge-glued panel production. The bonding was performed using struc...

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Autores principales:	Bila,Narciso F., Trianoski,Rosilani, Iwakiri,Setsuo, Egas,Andrade F., Manhiça,Alberto A., Da Rocha,Márcio P.
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2021
Materias:	Bonding quality edge glued panel emulsion polymeric isocyanate polyvinyl acetate value-added products wood bonding.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100441
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spelling	oai:scielo:S0718-221X20210001004412021-06-15Bonding quality of two lesser-used wood species Brachystegia spiciformis and Julbernardia globiflora from MozambiqueBila,Narciso F.Trianoski,RosilaniIwakiri,SetsuoEgas,Andrade F.Manhiça,Alberto A.Da Rocha,Márcio P. Bonding quality edge glued panel emulsion polymeric isocyanate polyvinyl acetate value-added products wood bonding. Abstract: The objective of this study was to evaluate the density, chemical properties and bonding quality of two lesser-used Mozambican wood species known as messassas (Brachystegia spiciformis and Julbernardia globiflora) aiming at edge-glued panel production. The bonding was performed using structural adhesive polyvinyl acetate D4, semi-structural adhesive emulsion polymer isocyanate and non-structural polyvinyl acetate D3 applied at 120·m-2 and 180·m-2 weights. Density, chemistry, edge shear bonding, wood failure percentage and the finger-joint tests were performed in accordance with standards. The results showed that both species have medium density, high extractives and lignin contents typical of tropical wood. The emulsion polymer isocyanate adhesive was approved with better performance compared to polyvinyl acetate D3 and D4 adhesives. It can also be affirmed that Brachystegia spiciformis and Julbernardia globiflora have similar bonding behaviour and the potential for producing edge glued panel panels, especially for indoor use.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=S0718-221X2021000100441en10.4067/s0718-221x2021000100441
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Bonding quality edge glued panel emulsion polymeric isocyanate polyvinyl acetate value-added products wood bonding.
spellingShingle	Bonding quality edge glued panel emulsion polymeric isocyanate polyvinyl acetate value-added products wood bonding. Bila,Narciso F. Trianoski,Rosilani Iwakiri,Setsuo Egas,Andrade F. Manhiça,Alberto A. Da Rocha,Márcio P. Bonding quality of two lesser-used wood species Brachystegia spiciformis and Julbernardia globiflora from Mozambique
description	Abstract: The objective of this study was to evaluate the density, chemical properties and bonding quality of two lesser-used Mozambican wood species known as messassas (Brachystegia spiciformis and Julbernardia globiflora) aiming at edge-glued panel production. The bonding was performed using structural adhesive polyvinyl acetate D4, semi-structural adhesive emulsion polymer isocyanate and non-structural polyvinyl acetate D3 applied at 120·m-2 and 180·m-2 weights. Density, chemistry, edge shear bonding, wood failure percentage and the finger-joint tests were performed in accordance with standards. The results showed that both species have medium density, high extractives and lignin contents typical of tropical wood. The emulsion polymer isocyanate adhesive was approved with better performance compared to polyvinyl acetate D3 and D4 adhesives. It can also be affirmed that Brachystegia spiciformis and Julbernardia globiflora have similar bonding behaviour and the potential for producing edge glued panel panels, especially for indoor use.
author	Bila,Narciso F. Trianoski,Rosilani Iwakiri,Setsuo Egas,Andrade F. Manhiça,Alberto A. Da Rocha,Márcio P.
author_facet	Bila,Narciso F. Trianoski,Rosilani Iwakiri,Setsuo Egas,Andrade F. Manhiça,Alberto A. Da Rocha,Márcio P.
author_sort	Bila,Narciso F.
title	Bonding quality of two lesser-used wood species Brachystegia spiciformis and Julbernardia globiflora from Mozambique
title_short	Bonding quality of two lesser-used wood species Brachystegia spiciformis and Julbernardia globiflora from Mozambique
title_full	Bonding quality of two lesser-used wood species Brachystegia spiciformis and Julbernardia globiflora from Mozambique
title_fullStr	Bonding quality of two lesser-used wood species Brachystegia spiciformis and Julbernardia globiflora from Mozambique
title_full_unstemmed	Bonding quality of two lesser-used wood species Brachystegia spiciformis and Julbernardia globiflora from Mozambique
title_sort	bonding quality of two lesser-used wood species brachystegia spiciformis and julbernardia globiflora from mozambique
publisher	Universidad del Bío-Bío
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100441
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Bonding quality of two lesser-used wood species Brachystegia spiciformis and Julbernardia globiflora from Mozambique

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