MANUFACTURING METHOD OF HIGH STRENGTH COMPLEX BOARD USING CHAFF AND COMPLEX BOARD COMPOSITION

摘要

PURPOSE: A manufacturing method of a high strength complex board using chaff and a complex board composition are provided to achieve special board products having improved bending strength and restitutive force. CONSTITUTION: In the manufacturing method of a high strength complex board using chaff, a porous plate drilled with a plurality of holes having a diameter of 0.5 to 5mm is passed through a complex board composition mold(10) installed in perpendicular to a forward direction of a complex board composition during an extruding molding process before a cooling process thereof. The complex board composition essentially consists of polyolefin resin of 30 to 35wt percent, chaff of 30 to 60wt percent pulverized into a size of 50 to 300 mesh, glass fiber of 3 to 15wt percent, and a foaming agent of 0.5 to 2wt percent, and in addition a dehydrating agent of 0.01 to 1.0wt percent and a coupling intensifier of 0.01 to 3.0wt percent are added on the basis of the essential components as sated above.