Wood particle mixture for a wood-plastic composite material and process for producing the wood particle mixture

摘要

Each wood particle has two cut surfaces (25,26), which define its thickness and extend approximately. in longitudinal direction of its fibers (24). Each also has cut edges (27,27') and/or broken edges (28,28'), which define its length in direction of the fibers, and its width at right angles to that direction. At least 90 % by weight of the particles have a thickness of between 0,2mm and 1,4mm, and a length and width up to 2,5mm. The particles are of spruce, etc. and have a moisture contend of 15% and an extract material content of less than 5,5% relative to absolute dry mass. A cutter device cuts flat wood chips, the chips are cut, broken into splinters, and the splinters are sieved.