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improved significantly. However, the MOE, MOR, and internal bond strength values of the samples decreased with increasing WPE amount in the panels when compared to control panels but met the minimum requirements of EN 300 (type 1-2-3-4). By increasing PF resin levels, weak adhesion between wood strands and WPE can be improved. 3. Optimum results for MOR, MOE, and IB mechanical properties were obtained from the samples with 30% waste polyethylene. They met the minimum requirements for OSB type 1 (EN 300). 4. Based on these results, it is suggested that OSB panels should be manufactured with WPE in order to contribute to recycling WPE, which is industrial waste material. This will also help protect the environment and reduce the manufacturing costs of OSB panels. REFERENCES CITED Ayrilmis, N., Buyuksari, U., and Avci, E. (2009). “Utilization of waste tire rubber in manufacture of oriented strand board,” Waste Management 29(9), 2553-2557. DOI: 10.1016/j.wasman.2009.05.017 Cai, Z., and Ross, R. J. (2010). “Mechanical properties of wood based composite materials,” Wood Handbook- Wood as an Engineering Material , Forest Products Laboratory, Madison, WI. DOI: 10.1016/j.wasman.2009.05.017 Eckelman, C. (1990). Fasteners and Their Use in Particleboard and MDF , National Particleboard Association, Purdue University, West Lafayette, IN. EN 300 (2006). “Oriented strand boards (OSB) – Definitions, classification specifications,” European Committee for Standardization , Brussels, Belgium. EN 310 (1993). “Determination of bending strength and modulus of elasticity,” European Committee for Standardization, Brussels, Belgium. EN 317 (1993). “Particleboards and fiberboards – Determination of swelling in thickness after immersion in water,” Eur opean Committee for Standardization, Brussels, Belgium. EN 319 (1993). “Particleboards and fiberboards; Determination of tensile strength perpendicular to the plane of the board,” European Committee for Standardization, Brussels, Belgium. EN 320 (1993). “P articleboards and fibreboards - Determination of resistance to axial withdrawal of screws,” European Committee for Standardization, Brussels, Belgium. EN 323 (1993). “Wood -based panels- Determination of density,” European Committee for Standardization, Brussels, Belgium. Howard, J. L. (2000). “U.S. forest products annual market review and prospects,” FPL- RN- 0278 , USDA Forest Service, Forest Prod. Lab., Madison, WI, USA. Hu, P.- J. (2000). “Bending stiffness prediction for oriented strandboard by classical lamination theory,” MSc Dissertation, University of Toronto, pp 1 -2. ISO 554 (1976). “Standard atmospheres for conditioning and /or testing - Specifications,” International Organization for Standardization, Geneva, Switzerland. Klyosov, A. A. (2007). Wood-Plastic Composites , John Wiley & Sons, Hoboken, NJ. DOI: 10.1002/9780470165935
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Yorur (2016 ). “Waste PE and effects on OSB,” B io R esources 11(1), 2483-2491.
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