مرکز منطقه ای اطلاع رساني علوم و فناوري - Some Physical and Mechanical Properties of Boards Made from Pretreated Particles of Turkish Red Pine

Abstract :

This study examined some physical and mechanical properties of particleboard manufactured from Turkish Red Pine (Pinus Brutia Ten.) particles that were pre-treated. Particles were subjected to some pre-treatments namely cold water, hot water, 1 - 0.5 % sodium hydroxide, and 1 - 0.5 % sulfuric acid in order to improve their performance in particleboard manufacturing. One-layer experimental particleboards with density of 0.6 g/cm^3 were manufactured using urea formaldehyde (UF) adhesive. Modulus of elasticity (MOE), modulus of rupture (MOR), internal bond strength (IB), thickness swelling (TS) and water absorption properties of the boards were evaluated, and a statistical analysis was performed in order to evaluate effects of pre-treatments on physical and mechanical properties. The results have shown that pre-treatments increase mechanical properties of the boards. Results also indicate that pre-treatments have significant effects on thickness swelling values of the boards but not on water absorption of the boards. Pretreatments can be used for improvement of mechanical properties of the particleboard made of Turkish Red Pine or lowering the amount of the adhesive used.