Influence of Chemical Modification with Polycrease ECR on the Functional Performance of Poplar wood Polymer

Talaei, Aisona; Rezvani, Mohammad Hadi

doi:10.22092/ijwpr.2017.107063

Document Type : Research Paper

Authors

¹ Assistant Professor at Department of Wood Science and Technology, Faculty of Civil Engineering, University of Shahid Rajaee Teacher Training, Tehran, Iran

² Masters Student at Department of Wood Science and Technology, Faculty of Civil Engineering, University of Shahid Rajaee Teacher Training, Tehran, Iran

https://doi.org/10.22092/ijwpr.2017.107063

Abstract

In this research the effect of chemical modification with Polycrease ECR on the functional performance of poplar wood to use as wood polymer were investigated. Polycrease ECR the modified dimethyloldihydroxy-ethyleneurea (DMDHEU) was used for chemical modification of wood by impregnation method. Specimens prepared according to the ASTM standard and treated in two levels of 30 and 50%. Modification process of specimens were performed at 24 hours in temperature of 120°C. Functional performance including Weight percent gain (WPG), bulking, long term water absorption and volumetric swelling in 8 weeks, bending strength (MOR) and modulus of elasticity (MOE), compression strength parallel to the grain, shear strength and withdrawal resistance of screw parallel to the grain was measured. Two-way analysis of variance (ANOVA) was used for statistical analysis. Obtained results of modified specimens were compared with untreated control. Results showed that modification with Polycrease ECR had significant effects on physical and mechanical properties in treated specimens. Chemical modification in 30% level, lead to reduce long term water absorption and volumetric swelling. Reduction in mechanical properties were not considerable. Chemical modification with Polycrease ECR in 30 % level compared to 50 % level, showed better physical and mechanical properties. Generally, influence of chemical modification on the physical properties (long term water absorption and volumetric swelling) were dominant.

Keywords

Main Subjects

Biology and Wood Protection

References

- Adamopoulos, S., Hosseinpourpia, R., & Mai, C., 2015. Tensile strength of handsheets prepared with macerated fibres from solid wood modified with cross-linking agents. Holzforschung, 69(8), 959-966.

- Akhtari, M,. Ghorbani Kokandeh, M., Taghiyari, H.R., 2015. Study on the physical and mechanical properties of paulownia wood impregnated with nanosilver and nanocopper. J. of Wood & Forest Science and Technology, Vol. 21 (4), 147-159.

- Baysal, E., Yalinkilik, M. K., Altinok, M., Sonmez, A., Peker. H., and Colak, M., 2007. Some physical, biological, mechanical, and fire properties of wood polymer composite (WPC) pretreated with boric acid and borax mixture. Construction and Building Materials, (21): 1879–1885.

- Bollmus, S., 2011. Biologische und technologische Eigenschaften von Buchenholz nach einer Modifizierung mit 1, 3-dimethylol-4, 5-dihydroxyethyleneurea (DMDHEU). PhD dissertation, Georg-August-Universitat Goettingen,
Germany.

- Chao, W.Y., and Lee, A.W., 2003. Properties of Southern pine wood impregnated with styrene. Holzforschung, 57(3): 333-336.

- Dieste, A., 2009. Wood-water relationships in wood modified with 1, 3-dimethylol-4, 5-dihydroxy ethylene urea (DMDHEU). PhD dissertation, Georg-August-Universitat Goettingen, Germany.

- Dieste, A., Krause, A., Bollmus, S., & Militz, H., 2008. Physical and mechanical properties of plywood produced with 1.3-dimethylol-4.5-dihydroxyethyleneurea (DMDHEU)-modified veneers of Betula sp. and Fagus sylvatica. Holz als Roh-und Werkstoff, 66(4), 281-287.

- Esteves, B.; Nunes, L.; Pereira, H., 2009. Furfurylation of Pinus pinaster Wood. In: Englund F, Hill CAS, Militz H, Segerholm BK (Hg.) The Fourth European Conference on Wood Modifiation. 4th European Conference on Wood Modifiation, Stockholm, 415-418.

- Hill CAS., 2006 Wood modification. Chemical, thermal and other processes. John Wiley & Sons Ltd., Chichester, pp 239.

- Jani, M., Rozman, D., and Rahim., 2007. Rubber wood-polymer Composites: The Effect of Chemical impregnation on the Mechanical and Physical Properties. Malaysian Polymer Journal, 2(2): 1-11.

- Jiang, T., Gao, H., Sun, J., Xie, Y., & Li, X., 2014. Impact of DMDHEU resin treatment on the mechanical properties of poplar. Polymers & Polymer Composites, 22(8), 669.

- Kaki, R., & Ghorbani, M., 2013. Investigation of Water Absorption and Dimensional Stability of Beech Impregnated With Methylmethacrylate. Journal of Forest and Wood Products (JFWP) (Iranian Journal of Natural Resources), 329-338.

- Kong, M. T., Lim, T. W., Król, P., Auriga, R., & Mamiński, M. Ł., 2015. 1, 3-Dimethylol-4, 5-dihydroxyethyleneurea as a Potential Alternative Binder for Plywood. The Journal of Adhesion, (just-accepted).

- Krause A, Wepner F, Xie Y, Militz H., 2008. Wood protection with dimethyloldihydroxy-ethyleneurea and its derivatives. In: Schultz TP, Militz H, Freeman MH, Goodell B, Nicholas DD (eds) Development of commercial wood preservatives. Efficacy, environmental, and health issues. American Chemical Society, Washington DC, pp 356–371.

- Lande, S.; Westin, M.; Schneider, M., 2004. Properties of furfurylated wood. Scandinavian Journal Forest Research 19(5): 22-30.

- Li, Y.; Dong, X.; Lu, Z.; Jia, W., and Liu, Y., 2012. Effect of polymer in situ synthesized from methyl methacrylate and styrene on morphology, thermal behavior and durability of wood. Journal of Applied Polymer Science, 128(1), 13-20.

- Lopes, D. B., Mai, C., & Militz, H., 2015. Mechanical properties of chemically modified portuguese pinewood. Maderas. Ciencia y tecnología, 17(1), 179-194.

- Lopes, D. B., May, C., & Militz, H., 2013. Physical properties of Portuguese pinewood chemically modified. Ciência & Tecnologia dos Materials, 25(2), 121-128.

- Militz, H., & Norton, J., 2013. Performance testing of DMDHEU-modified wood in Australia. International Research Group on Wood Protection IRG/WP 13-30613, Stockholm, Sweden.

- Omidvar, A,. 2009. Wood-polymer composite. Gorgan University of Agricultural sciences and Natural Resources, 127p.

- Rowell, R.M., 2005 a. Chemical modification of lingo-cellulosic materials. Marcel Dekker, New York, pp 77-98.

- Rowell, R.M., 2005 b. Handbook of wood chemistry and wood composites: blends and composites, Chapter
14 Chemical Modifiation Wood. Edited by Stoyko Fakirov, Debes Bhattacharyya, ISBN 978-3-446-40591-2.

- Schneider, M.H., & Phillips., J.G., 1996. Wood polymer composites improving woods’ natural virtues by polymer impregnation. Wood and fiber science 26(1), pp: 142-151.

- Schneider, M.H., & Phillips, J.G., 2000. Physical properties of wood polymer composites. J. Forest Engineering 11:1, 83- 89.

- Schneider, M.H., & Phillips, J.G., Tingley, D.A., & Brebner, K.I., 1990. Mechanical properties of polymer impregnated maple. For. Prod. J. 40(1): 37- 41.

- Talaeepour, S., and Omidvare, A., 2008. Investigation of physical properties wood polymer composites from palownia, aspen, maple, hornbeam speiec. Journal of Pajouhesh and sazandegi, (77): 85-91.

- Trinh, H. M., Militz, H., & Mai, C., 2012. Modification of beech veneers with N-methylol-melamine compounds for the production of plywood. European Journal of Wood and Wood Products, 70(4), 421-432.

- Verma, P., Junga, U., Militz, H., & Mai, C., 2009. Protection mechanisms of DMDHEU treated wood against white and brown rot fungi. Holzforschung,63(3), 371-378.

- Winandy JE, Rowell R., 2005. Chemistry of wood strength. In: Rowell R (ed) Handbook of wood chemistry and wood composites. Taylor & Francis, Boca Raton London New York Singapore, pp 303–347.

- Xie Y, Krause A, Militz H, Turkulin H, Richter K, Mai C., 2007. Effect of treatments with 1.3-dimethylol-4,5 dihydroxyethyleneurea (DMDHEU) on the tensile properties of wood. Holzforschung 61(1):43–50.

- Xie, Y., Xiao, Z., Grüneberg, T., Militz, H., Hill, C. A., Steuernagel, L., & Mai, C., 2010. Effects of chemical modification of wood particles with glutaraldehyde and 1, 3-dimethylol-4, 5-dihydroxyethyleneurea on properties of the resulting polypropylene composites. Composites Science and Technology,70(13), 2003-2011.

- Yildiz, Ü. C., Yildiz, S., & Gezer, E. D., 2005. Mechanical properties and decay resistance of wood–polymer composites prepared from fast growing species in Turkey. Bioresource technology, 96(9), 1003-1011.

- Zahedi tajrishi, A., and Omidvar, A., 2007. Resistance of Poplar wood polymer composites against Coriolus versicolor fangus. Journal of Agricultural Science and Natural Resource. 14(1): 81-90.

Iranian Journal of Wood and Paper Science Research

Influence of Chemical Modification with Polycrease ECR on the Functional Performance of Poplar wood Polymer

References

References

Volume 32, Issue 1 - Serial Number 58
April 2017
Pages 33-46

Influence of Chemical Modification with Polycrease ECR on the Functional Performance of Poplar wood Polymer

References

References

Volume 32, Issue 1 - Serial Number 58April 2017Pages 33-46

Volume 32, Issue 1 - Serial Number 58
April 2017
Pages 33-46