Effect of styrene and methyl methacrylate monomers on mechanical properties and decay resistance of beech (Fagus Orientalis)

Document Type : Research Paper

Authors

1 ; Assistant Professor, Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University, Sari, I.R. Iran

2 M. Sc. Student, Department of Wood and Paper, Natural Resources Faculty, Sari Agricultural Sciences and Natural Resources University, Sari, I.R. Iran

3 Professor of Wood and Paper Sciences, Department of Forestry and Wood Technology, Gorgan Agricultural Sciences and Natural Resources University, Gorgan, I.R. Iran

Abstract

This research was conducted to study the effects of styrene and methyl methacrylate cell lumen monomers on the mechanical properties and decay resistance of beech wood. Mechanical and decay resistance test samples were prepared according to ASTM D143-94 and DIN EN113 standards and impregnated with five concentration monomer solution 0, 40, 60, 80 and 100 percent using Bethell method. Treated samples were heated in oven at 90ºC for 24 hours then at 103ºC to polymerize the monomers. Modules of elasticity and rupture, hardness, compression strength parallel to grain and weight loss of samples were determined. According to the results, mechanical resistance increased with monomer concentration. Modulus of elasticity, modulus of rupture, and hardness and compression strength parallel to grain at the highest level (100%) compared with control samples were increased respectively 36.4, 44.4, 29 and 30.7% for methyl methacrylate monomer and for styrene monomer 32, 35.5, 36.5 and 27.5. Also, decay resistance improved as the absorbed polymer was increase, so that weight loss of control was 36.9%, but in treated samples with styrene and methyl methacrylate monomer decreased to 7.6 and 6.5% respectively.
 

Keywords

References

 
 
[1]. 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.
[2].Omidvare, A., and Amoozadeh omrani, M. (2005). Investigation on treatability of palownia wood using polymerization technique. Journal of Agricultural Science and Natural Resources, 12(5): 128-138.
[3]. Lande, S., Westin, M., and Schneider, M. (2004). Properties of furfurylated wood. Journal of Forest Research, 19(5): 22-30.
[4]. 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.
[5]. Omidvare, A. (2009). Wood Polymer Composites, 1th Ed., Gorgan University of Agricultural Sciences and Natural Resources press, Gorgan.
[6]. Li, Y., Liu, Y., Wang, X., Wu, Q., Yu, H., and Li, J. (2011). Wood-polymer composites prepared by in-situ polymerization of monomers within wood. Journal of Applied Polymer Science, 119(6): 3207–3216.
[7]. Li, Y., Dong, X., Lu, Z., Jia, W., and Liu, Y. (2012). Effect of polymer in situ synthesized from methyl methacrylate and styrene on the morphology, thermal behavior and durability of wood. Journal of Applied Polymer Science, (10): 1-8.
[8]. Mehrabzadeh, M., and Kamal, M. R. (2009). Effects of different types of clays and maleic anhydride modified polystyrene on polystyrene/clay nanocomposites. Iranian Journal of Polymer Science and Technology, (2): 151-157.
[9].Siau, J.F., Davidson, R.W., Meyer, J.A., and Skaar, C. (1968). Ageometrical model for wood–polymer composites. Wood Science and Technology, 1(2): 116–128.
[10]. Schneider, M.H., Phillips, J.G., Tingley, D.A., and Brebner, K.I. (1990). Mechanical properties of polymer-impregnated sugar maple. Forest Products Journal, 40(1): 37–41.
[11]. Yalinkilic, M.K., Tsunoda, K., Takahashi, M., Gezer, E.D., Dwianto, W., and Nemoto, H. (1998). Enhancement of biological and physical properties of wood by boric acid–vinyl monomer combination treatment. Holzforshung, 52 (6): 667–672.
[12]. Kawakami, H., Yamashina, H., and Taneda, K. (1977). Production of wood-plastic composites by functional resins. I. Effects of adding crosslinking and polar monomers to methyl methacrylate. Journal of Hokkaido Forest Products Research, 306: 10–17.
[13]. Ibach, R., and Ellis, W. (2005). Lumen Modifications, in Roger M. Rowell of Editors (ed.), Handbook of Wood Chemistry and Wood Composites, Washington, D.C., 421-446.
[14]. Lawniczak, M., and Szwarc, S. (1987). Crosslinking of polystyrene in wood-polystyrene composite preparation. Zesz. Probl. Postepow Nauk Rolniczch, 299(37): 115–125.
[15]. Ellis, W. (2000). Wood-polymer composites: Review of processes and properties. Molecular Crystals and Liquid Crystals, 353: 75-84.
[16]. Yalinkilic, M., Gezer, E., Takahashi, M., Demirci, Z., IIhan, R., and Imamura, Y. (1999). Boron Addition to Non- or Low-Formaldehyde Cross-linking Reagents to enhance biological resistance and dimensional stability of wood. European Journal of Wood and Wood Products, 57 (5): 351-357.
[17]. Rozman, H.D., Kumar, R.N., Abusamah, A., and Saad, M.J. (1998). Rubber wood-polymer composites based on glycidyl meth-acrylate and diallylphthalate. Journal of Applied Polymer Science, 67: 1221-1226.
[18]. Saiful Islam, M.D., Sinin Hamdan, I., Jusoh, M.D., Rezaur Rahman, A.S.A. (2012). The effect of alkali pretreatment on mechanical and morphological properties of tropical wood polymer composites. Materials and Design Journal, 33: 419–424.
[19]. Mohebby, B. (2003). Biological attack of acetylated wood. Ph. D. thesis. Göttingen University, Göttingen. 147 P.
[20]. Fruno, T. (1991). The role of wall polymer in the dimensional stability and decay durability of wood-polymer composites. In: Proceeding of International Symposium on chemical modification of wood, Kyoto, Japan, 160- 165.

Files

Share

How to cite

Statistics