Analysis of glue line and correlations between density and anatomical characteristics of Eucalyptus grandis × Eucalyptus urophylla glulam

Abstract: This study aimed to analyze the glue line thickness effect and its relation with the density and anatomical characteristics of eucalyptus wood. Thus, the thickness of main and secondary glue lines was measured as well as their interaction with the apparent density of elements glued with re...

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Autores principales:	de Oliveira,Rafael G. E., Gonçalves,Fabricio G., Segundinho,Pedro G. de A., Oliveira,José T. da S., Paes,Juarez B., Chaves,Izabella L. S., Brito,Alice S.
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2020
Materias:	Apparent density castor polyurethane delamination laminated wood resorcinol-formaldehyde.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2020000400495
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spelling	oai:scielo:S0718-221X20200004004952020-10-07Analysis of glue line and correlations between density and anatomical characteristics of Eucalyptus grandis × Eucalyptus urophylla glulamde Oliveira,Rafael G. E.Gonçalves,Fabricio G.Segundinho,Pedro G. de A.Oliveira,José T. da S.Paes,Juarez B.Chaves,Izabella L. S.Brito,Alice S. Apparent density castor polyurethane delamination laminated wood resorcinol-formaldehyde. Abstract: This study aimed to analyze the glue line thickness effect and its relation with the density and anatomical characteristics of eucalyptus wood. Thus, the thickness of main and secondary glue lines was measured as well as their interaction with the apparent density of elements glued with resorcinol-formaldehyde (RF) and castor oil polyurethane (CP) adhesives. Anatomical wood characterization of Eucalyptus grandis × Eucalyptus urophylla was performed by correlating glue line thickness. According to normative instruction, specimens were produced for delamination tests. The experiment was conducted in a completely random 2 × 2 design factorial scheme (two classes of wood apparent density and two adhesives). Pearson correlation (t < 0,01) was performed among variables. It was found that there was adhesive penetration into vessels and rays of wood. Glue line thickness was higher in woods with density higher than to 580 kg/m3 glued with RF adhesive. There was a low correlation between wood density and vessel diameter to main and secondary glue lines (t < 0,01).info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.22 n.4 20202020-10-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2020000400495en10.4067/S0718-221X2020005000408
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Apparent density castor polyurethane delamination laminated wood resorcinol-formaldehyde.
spellingShingle	Apparent density castor polyurethane delamination laminated wood resorcinol-formaldehyde. de Oliveira,Rafael G. E. Gonçalves,Fabricio G. Segundinho,Pedro G. de A. Oliveira,José T. da S. Paes,Juarez B. Chaves,Izabella L. S. Brito,Alice S. Analysis of glue line and correlations between density and anatomical characteristics of Eucalyptus grandis × Eucalyptus urophylla glulam
description	Abstract: This study aimed to analyze the glue line thickness effect and its relation with the density and anatomical characteristics of eucalyptus wood. Thus, the thickness of main and secondary glue lines was measured as well as their interaction with the apparent density of elements glued with resorcinol-formaldehyde (RF) and castor oil polyurethane (CP) adhesives. Anatomical wood characterization of Eucalyptus grandis × Eucalyptus urophylla was performed by correlating glue line thickness. According to normative instruction, specimens were produced for delamination tests. The experiment was conducted in a completely random 2 × 2 design factorial scheme (two classes of wood apparent density and two adhesives). Pearson correlation (t < 0,01) was performed among variables. It was found that there was adhesive penetration into vessels and rays of wood. Glue line thickness was higher in woods with density higher than to 580 kg/m3 glued with RF adhesive. There was a low correlation between wood density and vessel diameter to main and secondary glue lines (t < 0,01).
author	de Oliveira,Rafael G. E. Gonçalves,Fabricio G. Segundinho,Pedro G. de A. Oliveira,José T. da S. Paes,Juarez B. Chaves,Izabella L. S. Brito,Alice S.
author_facet	de Oliveira,Rafael G. E. Gonçalves,Fabricio G. Segundinho,Pedro G. de A. Oliveira,José T. da S. Paes,Juarez B. Chaves,Izabella L. S. Brito,Alice S.
author_sort	de Oliveira,Rafael G. E.
title	Analysis of glue line and correlations between density and anatomical characteristics of Eucalyptus grandis × Eucalyptus urophylla glulam
title_short	Analysis of glue line and correlations between density and anatomical characteristics of Eucalyptus grandis × Eucalyptus urophylla glulam
title_full	Analysis of glue line and correlations between density and anatomical characteristics of Eucalyptus grandis × Eucalyptus urophylla glulam
title_fullStr	Analysis of glue line and correlations between density and anatomical characteristics of Eucalyptus grandis × Eucalyptus urophylla glulam
title_full_unstemmed	Analysis of glue line and correlations between density and anatomical characteristics of Eucalyptus grandis × Eucalyptus urophylla glulam
title_sort	analysis of glue line and correlations between density and anatomical characteristics of eucalyptus grandis × eucalyptus urophylla glulam
publisher	Universidad del Bío-Bío
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2020000400495
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Analysis of glue line and correlations between density and anatomical characteristics of Eucalyptus grandis × Eucalyptus urophylla glulam

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