Effects of chemical components on properties of oriented strand board from Leucaena leucocephala wood

Rahim S., . and Jamaludin K., . and Nor Yuziah M. Y., . and Nazri W. M., . and Rudaini M. N., . Effects of chemical components on properties of oriented strand board from Leucaena leucocephala wood. pp. 353-360. ISSN 0128-1283

Chemical components of wood influence the characteristics properties and opportunities for use of natural composites. The main objective of the study was to determine basic chemical components of Leucaena leucocephala from 8- and 16-year-old trees and to correlate the effects of chemical components with properties of its oriented strand board. Besides age the effects of tree portions namely top middle and bottom were also studied. Leucaena leucocephala wood was analysed for holocellulose lignin ash and ethanoltoluene cold water hot water and 1 natrium hydroxide solubles. Oriented strand boards which were produced from the samples were evaluated for their mechanical and physical properties based on two resin levels (7 and 9) two target board densities (700 and 800 kg m-3) and two strand sizes namely S1 (12.719.0 mm) and S2 (6.312.7 mm). This study revealed that tree portion significantly affected cold and hot water solubles the solubilities of alkali and alcohol toluene and also the ash and holocellulose contents of L. leucocephala. Only the solubility of alcohol toluene and lignin and holocellulose contents were affected by age. Although the correlation of some chemical components was significant the correlation coefficients were relatively small thus indicating the loose association between the factors and board properties. It could be deduced that board properties had less association with chemical components but were more dependent on the resin content board density and strand size used in the study. Generally 8-year-old wood was found to be a suitable raw material for the manufacture of oriented strand board.

Full text available from: Official URL: http://www.frim.gov.my/v1/JTFSOnline/jtfs/V21n4/35...

Abstract

Chemical components of wood influence the characteristics properties and opportunities for use of natural composites. The main objective of the study was to determine basic chemical components of Leucaena leucocephala from 8- and 16-year-old trees and to correlate the effects of chemical components with properties of its oriented strand board. Besides age the effects of tree portions namely top middle and bottom were also studied. Leucaena leucocephala wood was analysed for holocellulose lignin ash and ethanoltoluene cold water hot water and 1 natrium hydroxide solubles. Oriented strand boards which were produced from the samples were evaluated for their mechanical and physical properties based on two resin levels (7 and 9) two target board densities (700 and 800 kg m-3) and two strand sizes namely S1 (12.719.0 mm) and S2 (6.312.7 mm). This study revealed that tree portion significantly affected cold and hot water solubles the solubilities of alkali and alcohol toluene and also the ash and holocellulose contents of L. leucocephala. Only the solubility of alcohol toluene and lignin and holocellulose contents were affected by age. Although the correlation of some chemical components was significant the correlation coefficients were relatively small thus indicating the loose association between the factors and board properties. It could be deduced that board properties had less association with chemical components but were more dependent on the resin content board density and strand size used in the study. Generally 8-year-old wood was found to be a suitable raw material for the manufacture of oriented strand board.

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Item Type:	Article
AGROVOC Term:	Leucaena leucocephala
AGROVOC Term:	Chemical composition
AGROVOC Term:	Toluene
AGROVOC Term:	Mechanical properties
AGROVOC Term:	Physical properties
AGROVOC Term:	Resins
AGROVOC Term:	Density
AGROVOC Term:	Age
AGROVOC Term:	Ash content
AGROVOC Term:	Juvenile wood
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:27
URI:	http://webagris.upm.edu.my/id/eprint/21695

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