Microstructural characterization and evaluation of certain important physical properties of thuja burl wood

Abstract: This investigation aimed to characterize certain important anatomical, chemical and physical properties of Tetraclinis articulate (Thuja) burl wood from Morocco. Anatomical properties and constituent structure were analysed using image analysis system, environmental scanning electron micro...

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Autores principales:	Shukla,S.R., Kamdem,D.P.
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2018
Materias:	Density crystallinity swelling water absorption dimensional stability Thuja.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2018000202701
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spelling	oai:scielo:S0718-221X20180002027012018-09-25Microstructural characterization and evaluation of certain important physical properties of thuja burl woodShukla,S.R.Kamdem,D.P. Density crystallinity swelling water absorption dimensional stability Thuja. Abstract: This investigation aimed to characterize certain important anatomical, chemical and physical properties of Tetraclinis articulate (Thuja) burl wood from Morocco. Anatomical properties and constituent structure were analysed using image analysis system, environmental scanning electron microscope (ESEM) and powder x-ray diffraction techniques. A few important physical properties of Thuja burl wood such as density, specific gravity, equilibrium moisture content (EMC), total swelling and water absorption characteristics were evaluated. Real-time water absorption and swelling profiles were recorded electronically using a digital force sensor and linear variable differential transformers (LVDTs) respectively. Microscopic structure observed on fractured surfaces showed very compact and thread-like fibers. Average crystallinity index and diameter of cellulose crystallite was found to be 0,35±0,03 and 36±5,58 Å respectively. The average values of air-dry density and the EMC of Thuja burl wood were 932,67±50,57 kg/m3 and 10,19±1,43% respectively. Swelling profile as a function of the water immersion duration followed a curvilinear variation with maximum swelling coefficient of 2,9±0,43% after 24 hour from oven-dry condition. The suitability of this wood for decorative and handicraft items is attributed mainly to its dense microstructure, higher dimensional stability, lower water absorption, random grain texture, dark brownish with intense and pleasant smell.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.20 n.2 20182018-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2018000202701en10.4067/S0718-221X2018005002701
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Density crystallinity swelling water absorption dimensional stability Thuja.
spellingShingle	Density crystallinity swelling water absorption dimensional stability Thuja. Shukla,S.R. Kamdem,D.P. Microstructural characterization and evaluation of certain important physical properties of thuja burl wood
description	Abstract: This investigation aimed to characterize certain important anatomical, chemical and physical properties of Tetraclinis articulate (Thuja) burl wood from Morocco. Anatomical properties and constituent structure were analysed using image analysis system, environmental scanning electron microscope (ESEM) and powder x-ray diffraction techniques. A few important physical properties of Thuja burl wood such as density, specific gravity, equilibrium moisture content (EMC), total swelling and water absorption characteristics were evaluated. Real-time water absorption and swelling profiles were recorded electronically using a digital force sensor and linear variable differential transformers (LVDTs) respectively. Microscopic structure observed on fractured surfaces showed very compact and thread-like fibers. Average crystallinity index and diameter of cellulose crystallite was found to be 0,35±0,03 and 36±5,58 Å respectively. The average values of air-dry density and the EMC of Thuja burl wood were 932,67±50,57 kg/m3 and 10,19±1,43% respectively. Swelling profile as a function of the water immersion duration followed a curvilinear variation with maximum swelling coefficient of 2,9±0,43% after 24 hour from oven-dry condition. The suitability of this wood for decorative and handicraft items is attributed mainly to its dense microstructure, higher dimensional stability, lower water absorption, random grain texture, dark brownish with intense and pleasant smell.
author	Shukla,S.R. Kamdem,D.P.
author_facet	Shukla,S.R. Kamdem,D.P.
author_sort	Shukla,S.R.
title	Microstructural characterization and evaluation of certain important physical properties of thuja burl wood
title_short	Microstructural characterization and evaluation of certain important physical properties of thuja burl wood
title_full	Microstructural characterization and evaluation of certain important physical properties of thuja burl wood
title_fullStr	Microstructural characterization and evaluation of certain important physical properties of thuja burl wood
title_full_unstemmed	Microstructural characterization and evaluation of certain important physical properties of thuja burl wood
title_sort	microstructural characterization and evaluation of certain important physical properties of thuja burl wood
publisher	Universidad del Bío-Bío
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2018000202701
work_keys_str_mv	AT shuklasr microstructuralcharacterizationandevaluationofcertainimportantphysicalpropertiesofthujaburlwood AT kamdemdp microstructuralcharacterizationandevaluationofcertainimportantphysicalpropertiesofthujaburlwood
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Microstructural characterization and evaluation of certain important physical properties of thuja burl wood

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