Twin-Screw Extrusion Process to Produce Renewable Fiberboards

This twin-screw extrusion technology can be used to conduct continuously and efficiently the pretreatment of lignocellulosic biomasses prior to fiberboard molding. The homogeneous thermo-mechanical pulps are produced at low cost and using a reduced volume of water. And the versatility of extrusion enables the addition of a natural binder in a single pass.

Using combined temperature moisture content is a key for a successful twin-screw extrusion of lignocellulosic fibers. So you always start with an excess of water, then you decrease the amounts until getting the desired texture. As the process is really sensitive we have to rely on all of the senses.