Influence of Planer Shavings and Waste Particleboards Usage in Core layer on Physical and Mechanical Properties of Three-layer Particleboards

The objective of this study is to investigate utilization of waste particleboards and planer shavings in manufacturing three-layer particleboard panels. For this purpose, waste particleboards and planer shavings were used in core layer of particleboard at different shelling ratios. Nine groups of three-layer experimental boards with a target density of 0.65 g/cm(3) were manufactured. Physical (thickness swelling and water absorption) and mechanical properties (modulus of rupture, modulus of elasticity and internal bonding strength) of the particleboards produced were determined according to EN standards. The results have showed the mechanical properties of all the particleboards (excepted for B board group produced from 100% waste particleboard) produced have satisfied the minimum requirements of mechanical properties of particleboard defined in EN standards. Thickness swelling values of the experimental particleboard for 24h water immersion were found lower than the maximum thickness swelling value of particleboard in defined in EN standards.