The paper presents original data concerning one aspect of the machinability of special, wood particle boards bonded with waste thermoplastics. The study focused on the measurement of drilling torque and thrust force. The classic ideaof machinability indexes was used. The experimental plastic particle boards (with a nominal density of 650 kg/m3) were made of industrial grade core-layer pine wood particles and three different waste thermoplastics: polyethylene, polypropylene and polystyrene. Three different proportions of plastic contents were used: 30,50 and 70%. The machinability of the boards was tested in relation to commercially--produced materials: standard medium-density fibreboard (MDF) and standard particle board (with nominal densities: 750 and 650 kg/m3, respectively). Data presented in the paper suggest that the machinability of wood particle boards bonded with waste thermoplastics, especially waste polyethylene, is particularly good, not only in relation to standard particle boards, but even in relation to standard MDF.
The bending properties of laminated wood combined with plastic. In the article we present the bending properties of laminated wood produced by the combination of beech veneer and plastic. The combination of wood and plastic enables us to create materials with different properties compared to solid wood. A small decrease in bending strength was demonstrated greater bendability laminated timber.