The Effect of Cotton Stalks Storage Time on Physical & Mechanical Properties of Produced Particleboard

Author

Abstract

The purpose of this study was to investigation the effect of storage time of cotton stalks on properties of produced particleboard. Therefore experimental boards were produced from cotton stalk in form of fresh, stored for 4 and 8 mounths in indoor and outdoor conditions. Also two combination of cotton stalk and poplar particles (100% cotton stalk and 60% cotton stalk & 40% poplar) is used. 30 boards were produced and physical & mechanical properties of their tested and analized. The results indicated that the modulus of rupture (MOR) and modulus of elasticity (MOE) of boards decreased significantly, with increasing of storage time of cotton stalk. Although, increasing of poplar particles made up reduction MOR and MOE of boards that made from cotton stalk with 4 and 8 mounth of storage time. The results indicated that with increasing of the storage time, the internal bonding of boards decreased to lower than EN standard level and use of cotton stalk and poplar particles combination were effective and improved IB of boards. Also, the thickness swelling of boards increased with increasing of storage time of cotton stalk. The results of this investigation showed that all of physical and mechanical properties of made particleboard reduced with increasing of storage time of cotton stalk. But the IB of boards decreased to lower than EN standard level.

Keywords


-   Agricultural Statistics Year Book (2006). Ministry of Jihad-e- Agriculture, Deputy of Planing and Economic Affairs, Bureau of Statistics and Information Technology. Vol 84/5.
-   Ahmad, A.J.H. Kasim, J. and Mohmod, A.L. 2002. Properties of single-layer urea formaldehyde particleboard manufactured from commonly utilized malaysian bamboo (Gigantochloa scortechinii). Journal of Bamboo and Rattan. 1(2): 109-117.
-   Copur, Y. Guler, C. Akgul, M. and Tascioglu, C. 2007. Some chemical properties of haselnut husk and its suitibility for particleboard production. Building and Envirement Journal. 42: 2568-2572.
-   European Standard EN 310, 1996. Wood Based Panels, Determination of Modulus of Elasticity in Bending and Bending Strength. European Standardization Committee, Brussell. 16 pp.
-   European Standard EN 312, 2003. Particleboards Specifications, Requirements for General Purpose boards for use in General Conditions. European Standardization Committee, Brussell. 28 pp.
-   European Standard EN 317, 1996. Particleboards and Fiberboards, Determination of Swelling in Thickness after Immersion. European Standardization Committee, Brussell. 20 pp.
-   European Standard EN 319, 1996. Wood based panels, Determination of Tensile Strength Perpendicular to Plane of the Board. European Standardization Committee, Brussell. 15 pp.
-   European Standard EN 326-1, 1993. Wood Based Panels, Sampling, Cutting and Inspection. Sampling and Cutting of Test Pieces and Expression of Test Results. 12 pp.
-   Hakki Alma, M. Kalaycioglu, H. Bektas, I. and Tutus, A. 2005. Properties of cooton carpel-based particleboards. Industrial Crops and Products Journal. 22:141-149.
-   Grigoriou, A. Passialis, C. and Voulgaridis, E. 2000. Experimental particleboards from kenaf plantations grown in greece. Holz als Roh-und werkstoff Journal. 58(5): 309-314.
-   Kargarfard, A. Nourbakhsh, A. and Golbabaei, F. 2006. Investigation on utilization of cotton stalk In particleboard production. Iranian Journal of Wood and Paper Science Research. 21(2): 95-104.
-   Kargarfard, A. Nourbakhsh, A. 2008. Utilization of grape pruning residues in middle layer of particleboard. Paiouhesh-va-Sazandegi Journal In Natural Resources.78: 186-191.
-   Ntalos, G.A. and Grigoriou, A.H. 2002. Characterization and utilization of vine Pruning as a wood substitute for particleboard production. Industrial Crops and Products Journal. 16(1):59-68.
-   Okuda, N. and Sato M. 2004. Manufacture and mechanical properties of binderless boards from kenaf core. Journal of Wood Science. 50:53–61
-   Papadopoulos, N. and Hague, R.B. 2003. The potential for using flax (Linum usitatissimum L.) shiv as a lignocellulosic raw material for particleboard. Industrial Crops and Products Journal. 17(2):143-147.
-   Widyorini, R. Xu, J. Umemura, K. and Kawai, S. 2005. Manufacture and properties of binderless particleboard from bagasse 1: effect of raw material type, storage methods, and manufacturing process. Journal of Wood Science. 51: 648-654.
-   Zare Hosseinabadi, H. (2006). Investigation of effect of wet and dry storage methods on properties of MDF made from bagasse. M. Sc. thesis, 108 pp, Faculty of natural Resources, University of Tehran.