SEM-EDXA of CCA-treated Rubberwood (Hevea brasiliensis)

Jusoh, Ismail and Kamdem, D. Pascal (2009) SEM-EDXA of CCA-treated Rubberwood (Hevea brasiliensis). Working Paper. 40th Annual Meeting, Beijing, China. (Unpublished)

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Abstract

The microdistribution of chromated copper arsenate (CCA) preservative in rubberwood was studied using scanning electron microscope in conjunction with energy dispersive X-ray analyzer (SEM-EDXA). Bulk X-ray analysis showed that there was a high accumulation of chromium, copper, and arsenic in the vessels and lower concentration of the three preservative elements in fibres. Chromium appeared to record the highest while copper the lowest X-ray intensity in all cells. SEM-EDXA of semi-thin sections demonstrated that X-ray intensities of Cr, Cu, and As were concentrated in the fibre-to-vessel cell corner (FVcc) and fibre-to-vessel middle lamella (FVMlJ while the lowest intensity was recorded in S2 layer of fibre. Linescan analyses illustrated that higher count rates of chromium, copper, and arsenic were found in the middle lamella compared to the fibre S2 layer in CCA-treated rubberwood. The increase of the solution strength in chromium, copper, and arsenic corresponds to an increase in Cr, Cu, and As level in wood cells.

Item Type: Monograph (Working Paper)
Additional Information: Universiti Malaysia Sarawak, UNIMAS
Uncontrolled Keywords: SEM-EDXA, CCA, microdistribution, Hevea brasiliensis, fibre-to-vessel cell corner, 2009, Universiti Malaysia Sarawak, UNIMAS, universiti, university, Borneo, Malaysia, Sarawak, Kuching, Samarahan, IPTA, education, undergraduate, research
Subjects: A General Works > AC Collections. Series. Collected works
A General Works > AC Collections. Series. Collected works
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Karen Kornalius
Date Deposited: 09 May 2014 02:22
Last Modified: 14 Aug 2015 01:37
URI: http://ir.unimas.my/id/eprint/2442

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