Dr Raymond Roberts
Consultant physicist

Dr Raymond Roberts
Consultant physicist

Blending efficiency in the manufacture of particleboard

The amount and variability of resin on flake after blending will dramatically affect the properties of particleboard and in particular the amount of resin required and the overall density of the panel. All particleboard blenders destroy flake and in so doing reduce the potential bending strength of the panel.

With the addition of a multi phase wetting system Rexex A manufactured by Oxford Technologies I have developed a technique to improve the effectiveness of particleboard blenders including new generation PAL blenders by improving resin coverage, reducing variation in resin coverage as well as significantly reducing the damage to flake caused by blending.

This can result in significantly improved physical properties, leading to the possible reduction of particleboard resin loadings and/or reduction in particleboard density and a significant reduction of dust and glue spots. This can be achieved with no capital expenditure i.e. no requirement for new style blenders.