Effects of accelerated and outdoor ageing on leachability and properties of compreg-laminated sesenduk wood
This study evaluated the effects of accelerated and outdoor ageing on compreg-laminated sesenduk (Endospermum diadenum) wood and correlations between these two ageing methods were established. For outdoor ageing, samples were exposed to tropical weather for 1, 3 and 6 months. For accelerated ageing,...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Forest Research Institute Malaysia
2017
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| Online Access: | http://psasir.upm.edu.my/id/eprint/56297/ http://psasir.upm.edu.my/id/eprint/56297/1/Effects%20of%20accelerated%20and%20outdoor%20ageing%20on%20leachability%20and%20properties%20of%20compreg-laminated%20sesenduk%20wood.pdf |
| _version_ | 1848853043502645248 |
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| author | K., Mohammad Fitri Ashaari, Zaidon Lee, Seng Hua Leemon, Nabil Fikri Bakar, Edi Suhaimi |
| author_facet | K., Mohammad Fitri Ashaari, Zaidon Lee, Seng Hua Leemon, Nabil Fikri Bakar, Edi Suhaimi |
| author_sort | K., Mohammad Fitri |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This study evaluated the effects of accelerated and outdoor ageing on compreg-laminated sesenduk (Endospermum diadenum) wood and correlations between these two ageing methods were established. For outdoor ageing, samples were exposed to tropical weather for 1, 3 and 6 months. For accelerated ageing, cyclic boil-dry treatment involving 1, 2, 5 and 10 cycles were employed. Results revealed that density and weight loss were observed after the ageing treatments. After 6 months of outdoor ageing, water absorption of aged phenol formaldehyde and phenol formaldehyde urea-treated samples increased from 3.0 to 13.3% and from 4.1 to 26.6% respectively. Similar behaviour was also observed for samples which underwent 10 cycles of accelerated ageing. Samples subjected to outdoor ageing had thickness swelling higher than that of accelerated ageing (4.3-4.5% vs 2.4-3.7%). Most of the samples lost 8.3 to 22.4% of initial modulus of rupture after 1 month of outdoor ageing. Treated samples retained 61.7 to 77.1% of its initial modulus of elasticity after 10 cycles of accelerated ageing while the untreated samples retained only 48.7%. Emission of formaldehyde decreased with increased exposure times and cyclic boil-dry cycles. As confirmed by Pearson's correlation test, there were good correlations (r = 0.71-0.99) for properties of samples between accelerated ageing and outdoor ageing. |
| first_indexed | 2025-11-15T10:47:42Z |
| format | Article |
| id | upm-56297 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:47:42Z |
| publishDate | 2017 |
| publisher | Forest Research Institute Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-562972017-07-31T05:18:30Z http://psasir.upm.edu.my/id/eprint/56297/ Effects of accelerated and outdoor ageing on leachability and properties of compreg-laminated sesenduk wood K., Mohammad Fitri Ashaari, Zaidon Lee, Seng Hua Leemon, Nabil Fikri Bakar, Edi Suhaimi This study evaluated the effects of accelerated and outdoor ageing on compreg-laminated sesenduk (Endospermum diadenum) wood and correlations between these two ageing methods were established. For outdoor ageing, samples were exposed to tropical weather for 1, 3 and 6 months. For accelerated ageing, cyclic boil-dry treatment involving 1, 2, 5 and 10 cycles were employed. Results revealed that density and weight loss were observed after the ageing treatments. After 6 months of outdoor ageing, water absorption of aged phenol formaldehyde and phenol formaldehyde urea-treated samples increased from 3.0 to 13.3% and from 4.1 to 26.6% respectively. Similar behaviour was also observed for samples which underwent 10 cycles of accelerated ageing. Samples subjected to outdoor ageing had thickness swelling higher than that of accelerated ageing (4.3-4.5% vs 2.4-3.7%). Most of the samples lost 8.3 to 22.4% of initial modulus of rupture after 1 month of outdoor ageing. Treated samples retained 61.7 to 77.1% of its initial modulus of elasticity after 10 cycles of accelerated ageing while the untreated samples retained only 48.7%. Emission of formaldehyde decreased with increased exposure times and cyclic boil-dry cycles. As confirmed by Pearson's correlation test, there were good correlations (r = 0.71-0.99) for properties of samples between accelerated ageing and outdoor ageing. Forest Research Institute Malaysia 2017 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/56297/1/Effects%20of%20accelerated%20and%20outdoor%20ageing%20on%20leachability%20and%20properties%20of%20compreg-laminated%20sesenduk%20wood.pdf K., Mohammad Fitri and Ashaari, Zaidon and Lee, Seng Hua and Leemon, Nabil Fikri and Bakar, Edi Suhaimi (2017) Effects of accelerated and outdoor ageing on leachability and properties of compreg-laminated sesenduk wood. Journal of Tropical Forest Science, 29 (2). pp. 198-207. ISSN 0128-1283 https://www.frim.gov.my/en/publication/journal-of-tropical-forest-science-jtfs/ |
| spellingShingle | K., Mohammad Fitri Ashaari, Zaidon Lee, Seng Hua Leemon, Nabil Fikri Bakar, Edi Suhaimi Effects of accelerated and outdoor ageing on leachability and properties of compreg-laminated sesenduk wood |
| title | Effects of accelerated and outdoor ageing on leachability and properties of compreg-laminated sesenduk wood |
| title_full | Effects of accelerated and outdoor ageing on leachability and properties of compreg-laminated sesenduk wood |
| title_fullStr | Effects of accelerated and outdoor ageing on leachability and properties of compreg-laminated sesenduk wood |
| title_full_unstemmed | Effects of accelerated and outdoor ageing on leachability and properties of compreg-laminated sesenduk wood |
| title_short | Effects of accelerated and outdoor ageing on leachability and properties of compreg-laminated sesenduk wood |
| title_sort | effects of accelerated and outdoor ageing on leachability and properties of compreg-laminated sesenduk wood |
| url | http://psasir.upm.edu.my/id/eprint/56297/ http://psasir.upm.edu.my/id/eprint/56297/ http://psasir.upm.edu.my/id/eprint/56297/1/Effects%20of%20accelerated%20and%20outdoor%20ageing%20on%20leachability%20and%20properties%20of%20compreg-laminated%20sesenduk%20wood.pdf |