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Chemical, colour and strength changes of eco-friendly hot oil treatment on 15 year-old cultivated acacia hybrid

The chemical, colour and strength properties of thermally modified cultivated 15-year-old Acacia hybrid were investigated. Logs of A. hybrid were harvested and cut at the bottom, middle and top sections. The wood later underwent hot oil thermal modification using palm oil at temperatures 180°C, 200°...

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Main Authors: Razak Wahab, Othman Sulaiman, Izyan Khalid, Mohd Sukhairi Mat Rasat, Mahmud Sudin
Format: Non-Indexed Article
Published: Insight 2013
Online Access:http://discol.umk.edu.my/id/eprint/7876/
http://www.insightsociety.org/ojaseit/index.php/ijaseit/article/view/268/341
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spelling my.umk.eprints.78762022-05-23T10:23:41Z http://discol.umk.edu.my/id/eprint/7876/ Chemical, colour and strength changes of eco-friendly hot oil treatment on 15 year-old cultivated acacia hybrid Razak Wahab Othman Sulaiman Izyan Khalid Mohd Sukhairi Mat Rasat Mahmud Sudin The chemical, colour and strength properties of thermally modified cultivated 15-year-old Acacia hybrid were investigated. Logs of A. hybrid were harvested and cut at the bottom, middle and top sections. The wood later underwent hot oil thermal modification using palm oil at temperatures 180°C, 200°C and 220°C for 30, 60 and 90 min. Untreated wood was used as control. The hot oil thermal modification process caused some features changed in the chemical composition, colour appearances and strength properties of A. hybrid wood. Parameters such as temperatures and treatment time were closely monitored as they influence the chemical, colour and strength changes in the treated wood. Temperatures of 180°C, 200°C and 220°C, and treatment time of 1 hr, 2 hrs. and 3 hrs. were used in the study. The degradation in holocellulose, cellulose, and hemicellulose contents was recognized when acacia woods were exposed to oil thermally modified process. Holocellulose and celulose degraded with the increasing of treatment temperature and duration of heating exposure, while lignin showed the increment in content through this treatment. The colour changes in the sapwood and heartwood were measured using the Minolta Chroma-meter CR-310 and the results are presented according to the CIE L*a*b* colour co-ordinates system. The results show that temperature at certain treatment time enhanced and darkened the treated wood. The colour of the treated sapwood can be enhanced to match the colour of the natural A. hybrid heartwood. The strength properties of the oil heat treated A. hybrid wood decreases in values of both MOR and MOE throughout the treatment process. The decreases in values were influenced by temperature and duration of the treatment. Insight 2013 Non-Indexed Article PeerReviewed Razak Wahab and Othman Sulaiman and Izyan Khalid and Mohd Sukhairi Mat Rasat and Mahmud Sudin (2013) Chemical, colour and strength changes of eco-friendly hot oil treatment on 15 year-old cultivated acacia hybrid. International Journal on Advanced Science, Engineering and Information Technolgy, 3 (1). pp. 6-15. ISSN 2088-5334 http://www.insightsociety.org/ojaseit/index.php/ijaseit/article/view/268/341
institution Universiti Malaysia Kelantan
building Perpustakaan Universiti Malaysia Kelantan
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Kelantan
content_source UMK Institutional Repository
url_provider http://umkeprints.umk.edu.my/
description The chemical, colour and strength properties of thermally modified cultivated 15-year-old Acacia hybrid were investigated. Logs of A. hybrid were harvested and cut at the bottom, middle and top sections. The wood later underwent hot oil thermal modification using palm oil at temperatures 180°C, 200°C and 220°C for 30, 60 and 90 min. Untreated wood was used as control. The hot oil thermal modification process caused some features changed in the chemical composition, colour appearances and strength properties of A. hybrid wood. Parameters such as temperatures and treatment time were closely monitored as they influence the chemical, colour and strength changes in the treated wood. Temperatures of 180°C, 200°C and 220°C, and treatment time of 1 hr, 2 hrs. and 3 hrs. were used in the study. The degradation in holocellulose, cellulose, and hemicellulose contents was recognized when acacia woods were exposed to oil thermally modified process. Holocellulose and celulose degraded with the increasing of treatment temperature and duration of heating exposure, while lignin showed the increment in content through this treatment. The colour changes in the sapwood and heartwood were measured using the Minolta Chroma-meter CR-310 and the results are presented according to the CIE L*a*b* colour co-ordinates system. The results show that temperature at certain treatment time enhanced and darkened the treated wood. The colour of the treated sapwood can be enhanced to match the colour of the natural A. hybrid heartwood. The strength properties of the oil heat treated A. hybrid wood decreases in values of both MOR and MOE throughout the treatment process. The decreases in values were influenced by temperature and duration of the treatment.
format Non-Indexed Article
author Razak Wahab
Othman Sulaiman
Izyan Khalid
Mohd Sukhairi Mat Rasat
Mahmud Sudin
spellingShingle Razak Wahab
Othman Sulaiman
Izyan Khalid
Mohd Sukhairi Mat Rasat
Mahmud Sudin
Chemical, colour and strength changes of eco-friendly hot oil treatment on 15 year-old cultivated acacia hybrid
author_facet Razak Wahab
Othman Sulaiman
Izyan Khalid
Mohd Sukhairi Mat Rasat
Mahmud Sudin
author_sort Razak Wahab
title Chemical, colour and strength changes of eco-friendly hot oil treatment on 15 year-old cultivated acacia hybrid
title_short Chemical, colour and strength changes of eco-friendly hot oil treatment on 15 year-old cultivated acacia hybrid
title_full Chemical, colour and strength changes of eco-friendly hot oil treatment on 15 year-old cultivated acacia hybrid
title_fullStr Chemical, colour and strength changes of eco-friendly hot oil treatment on 15 year-old cultivated acacia hybrid
title_full_unstemmed Chemical, colour and strength changes of eco-friendly hot oil treatment on 15 year-old cultivated acacia hybrid
title_sort chemical, colour and strength changes of eco-friendly hot oil treatment on 15 year-old cultivated acacia hybrid
publisher Insight
publishDate 2013
url http://discol.umk.edu.my/id/eprint/7876/
http://www.insightsociety.org/ojaseit/index.php/ijaseit/article/view/268/341
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score 13.211869

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