Production of veneer-reinforced corrugated particleboard and effect of board density on bending properties

Composite board could be produced providing a high modulus of rupture (MOR) with a low apparent density. The apparent density of corrugated board was 0.41 g/cm(3), and its strength was found to be equivalent to that of 8-type particleboard described in JIS A 5908. On the other hand, although the app arent density of the composite board was 0.23 g/cm(3), its strength was fou nd to be equivalent to that of 13-type particleboard described in JIS A 590 8. The structure of this board was reinforced by two plies of veneer placed on the tension side of the corrugated particleboard. The composite board w ith reinforcement of veneer on both sides of corrugated particleboard was f ound to be equivalent to that of 18-type particleboard in JIS A 5908. Notab ly, MOR was improved by increasing the density of the corrugated particlebo ard and laminating more veneers.