| abstract |
The present invention relates to a rigid board and a method for manufacturing the same, more specifically, 30-65% by weight of natural fibers, 30-65% by weight of polypropylene and maleic anhydride selected from the group consisting of hemp, hemp, flax, jute and ramie grass The rigid board of the present invention comprising 0.2-5% by weight of one or more binders selected from polypropylene or silane and surface-treated with an electron beam significantly improves mechanical properties such as tensile strength and thermal shock resistance and thermal properties such as thermal conductivity. . |