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Licensed Unlicensed Requires Authentication Published by De Gruyter October 10, 2017

Chemical, physico-mechanical properties and biological durability of rubberwood particleboards after post heat-treatment in palm oil

  • Seng Hua Lee EMAIL logo , Zaidon Ashaari , Wei Chen Lum , Aik Fei Ang , Juliana Abdul Halip and Rasmina Halis
From the journal Holzforschung


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.


The authors wish to thank for the financial support provided by the Fundamental Research Grant Scheme (FRGS) 2014-2 under Ministry of Higher Education (MOHE), Malaysia. Reference code: FRGS/2/2014/STWN02/UPM/01/2.


Andrade, P. I., Araujo, S. O., Neiva, D. M., Vital, B. R., Carneiro, A. C. O., Gominho, J., Pereira, H. (2016) Strength properties and dimensional stability of particleboards with different proportions of thermally treated recycled pine particles. Holzforschung 70:467–474.10.1515/hf-2015-0090Search in Google Scholar

Bak, M., Németh, R. (2012) Modification of wood by oil heat treatment. In: Proceedings of International Scientific Conference on Sustainable Development & Ecological Footprint, Sopron, Hungary. pp. 1–5.Search in Google Scholar

Boonstra, M. J., Van Acker, J., Tjeerdsma, B. F., Kegel, E. V. (2007) Strength properties of thermally modified softwoods and its relation to polymeric structural wood constituents. Ann. For. Sci. 64:679–690.10.1051/forest:2007048Search in Google Scholar

Cheng, D., Chen, L., Jiang, S., Zhang, Q. (2014) Oil uptake percentage on oil-heat-treated wood, its dimensional stability by soxhlet extraction, and its effects on wood compression strength parallel to the grain. BioResources 9:120–131.Search in Google Scholar

Ciolacu, D., Ciolacu, F., Popa, V. I. (2011) Amorphous cellulose – structure and characterization. Cell. Chem. Technol. 45:13–21.Search in Google Scholar

Doi, S., Aoyama, M., Yamauchi, S., Kurimoto, Y. (2005) Changes of decay and termite durabilities of Japanese larch (Larix leptolepis) wood due to high-temperature kiln drying processes. J. Wood Sci. 51:526–530.10.1007/s10086-004-0684-5Search in Google Scholar

Dubey, M. K., Pang, S., Walker, J. (2012) Changes in chemistry, color, dimensional stability and fungal resistance of Pinus radiata D. Don wood with oil heat-treatment. Holzforschung 66:49–57.10.1515/HF.2011.117Search in Google Scholar

Dubey, M. K., Pang, S., Chauhan. S., Walker. J. (2016) Dimensional stability, fungal resistance and mechanical properties of radiata pine after combined thermo-mechanical compression and oil heat-treatment. Holzforschung 70:793–800.10.1515/hf-2015-0174Search in Google Scholar

Geib, S. M., Filley, T. R., Hatcher, P. G., Hoover, K., Carlson, J. E., Jimenez-Gasco, M. M., Nakagawa-Lzumi, A., Sleighter, R. L., Tien, M. (2008) Lignin degradation in wood – feeding insect. Proc. Natl. Acad. Sci. 105:12932–12937.10.1073/pnas.0805257105Search in Google Scholar PubMed PubMed Central

Gunduz, G., Aydemir, D., Karakas, G. (2009) The effect of thermal treatment on the mechanical properties of wild pear (Pyrus elaeagnifolia Pall.) wood and changes in physical properties. Mater. Des. 30:4391–4395.10.1016/j.matdes.2009.04.005Search in Google Scholar

Guo, J., Yin, J., Zhang, Y., Salmen, L., Yin, Y. (2017) Effects of thermo-hygro-mechanical (THM) treatment on the viscoelasticity of in-situ lignin. Holzforschung 71:455–460.10.1515/hf-2016-0201Search in Google Scholar

Haider, A., Nguyen, H. L., Muller, U., Endesfelder, A. (2009) Melamine resin based wood plastic composites (WPC) – heat resistance. Eur. J. Wood Prod. 67:71–76.10.1007/s00107-008-0288-7Search in Google Scholar

Humar, M., Krzisnik, D., Lesar, B., Thaler, N., Ugovsek, A., Zupancic, K., Zlahtic, M. (2017) Thermal modification of wax-impregnated wood to enhance its physical, mechanical, and biological properties. Holzforschung 71:57–64.10.1515/hf-2016-0063Search in Google Scholar

Jebrane, M., Fernández-Cano, V., Panov, D., Terziev, N., Daniel, G. (2015) Novel hydrophobization of wood by epoxidized linseed oil. Part 1. Process description and anti-swelling efficiency of the treated wood. Holzforschung 69:173–177.10.1515/hf-2014-0029Search in Google Scholar

Kocaefe, D., Ponscak, S., Boluk, Y. (2008) Effect of thermal on the chemical composition and mechanical properties of birch and aspen. BioResources 3:517–537.Search in Google Scholar

Lee, S. H., Lum, W. C., Zaidon, A., Maminski, M. (2015) Microstructural, mechanical and physical properties of post heat-treated melamine-fortified urea formaldehyde-bonded particleboard. Eur. J. Wood Prod. 73:607–616.10.1007/s00107-015-0924-ySearch in Google Scholar

Lee, S. H., Zaidon, A., Ang, A. F., Juliana, A. H. (2017) Dimensional stability of heat oil-cured particleboard made with oil palm trunk and rubberwood. Eur. J. Wood Prod. 75:285–288.10.1007/s00107-016-1110-6Search in Google Scholar

Lyon, F., Thevenon, M., Hwang, W., Imamura, Y., Gril, J., Pizzi, A. (2007) Effect of an oil heat treatment on the leachability and biological resistance of boric acid impregnated wood. Ann. For. Sci. 64:673–678.10.1051/forest:2007046Search in Google Scholar

Manola, R. D., Garcia, C. M. (2012) Termite resistance of thermally-modified Dendrocalamus asper (Schultes F.) Backer ex Heyne. Insects 3:390–395.10.3390/insects3020390Search in Google Scholar PubMed PubMed Central

Miklecic, J., Jirous-Rajkovic, V., Antonovic, A., Spanic, N. (2011) Discolouration of thermally modified wood during simulated indoor sunlight exposure. BioResources 6:434–446.10.15376/biores.6.1.434-446Search in Google Scholar

Mohkami, M., Talaeipour, M. (2011) Investigation of the chemical structure of carbonxylated and carboxymethylated fibers from waste paper via XRD and FTIR analysis. BioResources 6:1988–2003.Search in Google Scholar

Ogland, N. J., Emilsson, E. B. (1951) The effect of heat treatment on the bending strength and elasticity of hardboards. Svensk Papp Tidn. 54:597–600.Search in Google Scholar

Okon, K. E., Lin, F., Chen, Y., Huang, B. (2017) Effect of silicone oil heat treatment on the chemical composition, cellulose crystalline structure and contact angle of Chinese parasol wood. Carbohydr. Polym. 164:179–185.10.1016/j.carbpol.2017.01.076Search in Google Scholar PubMed

Oliver-Villanueva, J., Gascon-Garrido, P., Ibiza-Palacios, M. S. (2013) Evaluation of thermally-treated wood of beech (Fagus sylvatica L.) and ash (Fraxinus excelsior L.) against Mediterranean termites (Reticulitermes spp.). Eur. J. Wood Prod. 71:391–393.10.1007/s00107-013-0687-2Search in Google Scholar

Ozgenc, O., Durmaz, S., Boyaci, I. H., Eksi-Kocak, H. (2017) Determination of chemical changes in heat-treated wood using ATR-FTIR and FT Raman spectrometry. Spectrochim. Acta Mol. Biomol. Spectrosc. 171:395–400.10.1016/j.saa.2016.08.026Search in Google Scholar PubMed

Pena, A. G., Franseschi, F. A., Estrada, M. C., Ramos, V. M., Zarracino, R. G., Zavala Loria, J. C., Cordova Quiroz, A. V. (2014) Fourier transform infrared-attenuated total reflectance (FTIR-ATR) spectroscopy and chemometric techniques for the determination of adulteration in petrodiesel/biodiesel blends. Quim. Nova 37:392–397.Search in Google Scholar

Popescu, C., Popescu, M., Singurel, G., Vasile, C., Argyropoulos, B. S., Willför, S. (2007) Spectral characterization of eucalyptus wood. Appl. Spectrosc. 61:1168–1177.10.1366/000370207782597076Search in Google Scholar PubMed

Risto, A., Kotilainena, T. J. T., Raimo, J. A. (2000) FTIR monitoring of chemical changes in softwood during heating. J. Wood Chem. Technol. 20:307–320.10.1080/02773810009349638Search in Google Scholar

Sadrolhosseini, A. R., Abdul Rashid, S., Zakaria, A. (2017) Synthesis of gold nanoparticles dispersed in palm oil using laser ablation technique. J. Nanomater. 2017:1–5.10.1155/2017/6496390Search in Google Scholar

Salmen, L., Possler, H., Stevanic, J. S., Stanzl-Tschegg, S. E. (2008) Analysis of thermally treated wood samples using dynamic FT-IR-spectroscopy. Holzforschung 62:676–678.10.1515/HF.2008.113Search in Google Scholar

Sim, S. F., Lee, T. Z. E., Mohd Irwan Lu, N. A. L., Samling, B. (2014) Synchronized analysis of FTIR spectra and GCMS chromatograms for evaluation of the thermally degraded vegetable oils. J. Anal. Methods Chem. 2014:1–9.10.1155/2014/271970Search in Google Scholar PubMed PubMed Central

Smith, R. W. S., Rapp, A. O., Welzbacher, C., Winandy, J. E. (2003) Formosan subterranean termite resistance to heat treatment of Scots pine and Norway spruce. IRG/WP 03-40264, The International Research Group on Wood Preservation: Stockholm, Sweden.Search in Google Scholar

Spiridon, I., Teaca, C., Bodîrlau, R. (2011) Structural changes evidenced by FTIR spectroscopy in cellulosic materials after pre-treatment with ionic liquid and enzymatic hydrolysis. BioResources 6:400–413.10.15376/biores.6.1.400-413Search in Google Scholar

Stamm, A. J. Wood and Cellulose Science. Ronald Press Co, New York, 1964.Search in Google Scholar

Suchsland, O., Xu, H. (1991) Model analysis of flakeboard variables. Forest Prod. J. 41:55–60.Search in Google Scholar

Surini, T., Charrier, F., Malvestio, J., Charrier, B., Moubarik, A., Castera, P., Grelier, S. (2012) Physical properties and termite durability of maritime pine Pinus pinaster Ait., heat-treated under vacuum pressure. Wood. Sci. Technol. 46:487–501.10.1007/s00226-011-0421-3Search in Google Scholar

Temiz, A., Terziev, N., Eikenes, M., Hafren, J. (2007) Effect of accelerated weathering on surface chemistry of modified wood. Appl. Surf. Sci. 253:355–5362.10.1016/j.apsusc.2006.12.005Search in Google Scholar

Tjeerdsma, B. F., Militz, H. (2005) Chemical changes in hydrothermal treated wood: FTIR analysis of combined hydrothermal and dry heat-treated wood. Holz Roh-Werkst. 63:102–111.10.1007/s00107-004-0532-8Search in Google Scholar

Tjeerdsma, B. F., Boonstra, M., Pizzi, A., Tekely, P., Militz, H. (1998) Characterisation of thermally modified wood: molecular reasons for wood performance improvement. Holz. Roh. Werkst. 56:149–153.10.1007/s001070050287Search in Google Scholar

Toker, H., Baysal, E., Turkoglu, T., Kart, S., Sen, F., Peker, H. (2016) Surface characteristics of oriental beech and scots pine woods heat-treated above 200°C. Wood. Res. 61:43–54.Search in Google Scholar

Tomak, E. D., Viitanen, H., Yildiz, U. C., Hughes, M. (2011a) The combined effects of boron and oil heat treatment on the properties of beech and Scots pine wood. Part 2: water absorption, compression strength, color changes, and decay resistance. J. Mater. Sci. 46:608–615.10.1007/s10853-010-4860-2Search in Google Scholar

Tomak, E. D., Hughes, M., Yildiz, U. C., Viitanen, H. (2011b) The combined effects of boron and oil heat treatment on beech and Scots pine wood properties. Part 1: Boron leaching, thermogravimetric analysis, and chemical composition. J. Mater. Sci. 46:598–607.10.1007/s10853-010-4859-8Search in Google Scholar

Vidale, M., Craig, O., Desset, F., Guida, G., Bianchetti, P., Sidoti, G., Mariottini, M., Battistella, E. (2012) A chlorite container found on the surface of Shahdad (Kerman, Iran) and its cosmetic content. Iran 50:27–44.10.1080/05786967.2012.11834711Search in Google Scholar

Wang, J. Y., Cooper, P. A. (2005) Effect of oil type, temperature and time on moisture properties of hot oil-treated wood. Holz Roh-Werkst. 63:417–422.10.1007/s00107-005-0033-4Search in Google Scholar

Welzbacher, C. R., Wehsener, J., Rapp, A. O., Haller, P. (2008) Thermomechanical densification combined with thermal modification of Norway spruce (Picea abies Karst) in industrial scale-dimensional stability and durability aspects. Holz Roh-Werkst. 66:39–49.10.1007/s00107-007-0198-0Search in Google Scholar

Winandy, J. E., Lebow, P. K. (2001) Modeling strength loss in wood by chemical composition. Part I. An individual component model for southern pine. Wood Fibre Sci. 33:239–254.Search in Google Scholar

Umar, I., Zaidon, A., Lee. S. H., Halis, R. (2016) Oil-heat treatment of rubberwood for optimum changes in chemical constituents and decay resistance. J. Trop. For. Sci. 28:88–96.Search in Google Scholar

Received: 2017-5-19
Accepted: 2017-9-11
Published Online: 2017-10-10
Published in Print: 2018-1-26

©2017 Walter de Gruyter GmbH, Berlin/Boston

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