| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the interlaminar peeling by forming an interior structure having the different hardness different from one side face in the thickness direction to the other side face or from the center in the thickness direction to both side faces. SOLUTION: The hardness of a fiber laminated board formed by heating and pressurizing a fiber laminate composed of a fiber material into which a thermoplastic resin is mixed is different from one side face in the thickness direction toward the other side face or from the center in the thickness direction toward both side faces, and fiber laminates individual one another and their bonding interfaces are not provided thereon. The fiber laminate is preferably a laminate formed of natural fibers and the thermoplastic resin mixed together.</p> |
