METHOD OF PRODUCING COMPRESSED LAYERED STRUCTURES

摘要

A method of manufacturing a fiberboard or a similar wood-based product. The method comprises providing a lignocellulosic material, contacting the lignocellulosic material with an activating agent to produce a modified lignocellulosic material containing free radicals, forming the modified material into a layered structure, and pressing the layered structure into a compressed product. According to the invention a modified lignocellulosic material is produced which contains for softwood fibers, at least 0.7x10<18> or, for hardwood fibers, at least 3x10<18> free radicals/g of lignocellulosic material. By pressing the layered structure a compressed product is obtained having an internal bonding of at least 0.7 MPa.