POLYISOCYANATE-IMPREGNATED LIGNOCELLULOSIC SUBSTRATES, AND METHOD AND SYSTEMS FOR PRODUCING THE SAME

摘要

PURPOSE: Provided are polyisocyanate-impregnated lignocellulosic substrates, and method and system for producing the same, which method is simpler, cheaper, faster, and environmentally safer than the prior art methods used to produce polyisocyanate-impregnated lignocellulosic substrates because it does not require the use of a solvent, carrier, or vapor recovery system, or an oven for curing. CONSTITUTION: The system for forming a polymerized resin-impregnated substrate includes an impregnation station(20) for impregnating a substrate of a lignocellulosic material with an isocyanate resin material, the impregnation station comprising a unit for heating the isocyanate resin material and a unit for applying the heated isocyanate resin material to the lignocellulosic substrate, the unit for applying the heated isocyanate resin material is one of a first soaking tank and a plurality of nozzles; a resin material removal station(30) for removing excess amounts of the isocyanate resin material from the isocyanate impregnated substrate before polymerization of the isocyanate resin material, the resin material removal station comprising an air knife station; a polymerization station(40) for polymerizing the isocyanate resin material impregnated in the lignocellulosic material substrate, the polymerization station comprising a unit for heating a liquid and a unit for applying the heated liquid to the impregnated substrate, the unit for applying the heated liquid is one of a second soaking tank and a plurality of nozzles.