Chemical, physico-mechanical properties and biological durability of rubberwood particleboards after post heat-treatment in palm oil
The chemical properties, dimensional stability, mechanical strength and termite resistance of urea formaldehyde (UF) bond rubberwood (RW) particleboard (PB) were assessed after a two-step oil heat treatment (OHT). The PB was immersed in palm oil before heating to 180, 200, and 220°C in a laboratory...
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Walter de Gruyter GmbH
2017
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| Online Access: | http://eprints.uthm.edu.my/4931/1/AJ%202017%20%28695%29.pdf http://eprints.uthm.edu.my/4931/ https://doi.org/10.1515/hf-2017-0086 |
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| author | Seng, Hua Lee Ashaari, Zaidon Wei, Chen Lum Aik, Fei Ang Abdul Halip, Juliana Halis, Rasmina |
| author_facet | Seng, Hua Lee Ashaari, Zaidon Wei, Chen Lum Aik, Fei Ang Abdul Halip, Juliana Halis, Rasmina |
| author_sort | Seng, Hua Lee |
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| collection | Institutional Repository |
| content_provider | Universiti Tun Hussein Onn Malaysia |
| content_source | UTHM Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | The chemical properties, dimensional stability, mechanical strength and termite resistance of urea formaldehyde (UF) bond rubberwood (RW) particleboard (PB) were assessed after a two-step oil heat treatment (OHT). The PB was immersed in palm oil before heating to 180, 200, and 220°C in a laboratory oven for 2 h. Anti-swelling efficiency (ASE) and water repellency efficiency (WRE) as well as bending (MOE, MOR) and internal bonding strength (IB) were determined. Resistance against a subterranean termite, Coptotermes curvignathus Holmgren, was tested. The degradation of hemicelluloses and cellulose, that are mainly responsible for wood wetting processes, was confirmed by Fourier transform infrared (FTIR) spectra. Formation of an elevated cross-linking density in lignin also contributed to the dimensional stability, where 93.6% ASE and 46.3% WRE were achieved in the samples treated at 220°C. Mechanical properties of treated samples were inferior to the control samples due to hemicelluloses degradation and breakage of the UF bonding network. A significant improvement in termite resistance has been found in the treated samples. |
| format | Article |
| id | my.uthm.eprints-4931 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | en |
| publishDate | 2017 |
| publisher | Walter de Gruyter GmbH |
| record_format | eprints |
| spelling | my.uthm.eprints-49312021-12-23T08:57:20Z http://eprints.uthm.edu.my/4931/ Chemical, physico-mechanical properties and biological durability of rubberwood particleboards after post heat-treatment in palm oil Seng, Hua Lee Ashaari, Zaidon Wei, Chen Lum Aik, Fei Ang Abdul Halip, Juliana Halis, Rasmina QC Physics T Technology (General) The chemical properties, dimensional stability, mechanical strength and termite resistance of urea formaldehyde (UF) bond rubberwood (RW) particleboard (PB) were assessed after a two-step oil heat treatment (OHT). The PB was immersed in palm oil before heating to 180, 200, and 220°C in a laboratory oven for 2 h. Anti-swelling efficiency (ASE) and water repellency efficiency (WRE) as well as bending (MOE, MOR) and internal bonding strength (IB) were determined. Resistance against a subterranean termite, Coptotermes curvignathus Holmgren, was tested. The degradation of hemicelluloses and cellulose, that are mainly responsible for wood wetting processes, was confirmed by Fourier transform infrared (FTIR) spectra. Formation of an elevated cross-linking density in lignin also contributed to the dimensional stability, where 93.6% ASE and 46.3% WRE were achieved in the samples treated at 220°C. Mechanical properties of treated samples were inferior to the control samples due to hemicelluloses degradation and breakage of the UF bonding network. A significant improvement in termite resistance has been found in the treated samples. Walter de Gruyter GmbH 2017 Article PeerReviewed text en http://eprints.uthm.edu.my/4931/1/AJ%202017%20%28695%29.pdf Seng, Hua Lee and Ashaari, Zaidon and Wei, Chen Lum and Aik, Fei Ang and Abdul Halip, Juliana and Halis, Rasmina (2017) Chemical, physico-mechanical properties and biological durability of rubberwood particleboards after post heat-treatment in palm oil. Holzforschung, 72 (2). pp. 159-167. ISSN 0018-3830 https://doi.org/10.1515/hf-2017-0086 |
| spellingShingle | QC Physics T Technology (General) Seng, Hua Lee Ashaari, Zaidon Wei, Chen Lum Aik, Fei Ang Abdul Halip, Juliana Halis, Rasmina Chemical, physico-mechanical properties and biological durability of rubberwood particleboards after post heat-treatment in palm oil |
| title | Chemical, physico-mechanical properties and biological durability of rubberwood particleboards after post heat-treatment in palm oil |
| title_full | Chemical, physico-mechanical properties and biological durability of rubberwood particleboards after post heat-treatment in palm oil |
| title_fullStr | Chemical, physico-mechanical properties and biological durability of rubberwood particleboards after post heat-treatment in palm oil |
| title_full_unstemmed | Chemical, physico-mechanical properties and biological durability of rubberwood particleboards after post heat-treatment in palm oil |
| title_short | Chemical, physico-mechanical properties and biological durability of rubberwood particleboards after post heat-treatment in palm oil |
| title_sort | chemical, physico-mechanical properties and biological durability of rubberwood particleboards after post heat-treatment in palm oil |
| topic | QC Physics T Technology (General) |
| url | http://eprints.uthm.edu.my/4931/1/AJ%202017%20%28695%29.pdf http://eprints.uthm.edu.my/4931/ https://doi.org/10.1515/hf-2017-0086 |
| url_provider | http://eprints.uthm.edu.my/ |