| 摘要 |
PURPOSE:To obtain a composite molded product having excellent productivity and workability by making reinforcing fibers exist in the vicinity of the inner surface of a mold, and also making heat expansion particles and solid heat melting matrix resin or the mixed substance with the material thereof exist in the part to be a porous core after the molding and, after that, heating the mold. CONSTITUTION:By using matrix resin or the material thereof to be softened and liquified by heating in combination with expansive particles, these raw material composites are put into the mold wrapping with reinforcing fibers, or put into the central part of the mold that is preliminarily placed with reinforcing fibers in the proximity of the inner surface of the mold so as to be heated therein, whereby the matrix resin or raw material constituting the raw material composites is softened or melted and the heat expansive particles are expanded, and thus, by the expansion forces thereof, a part of the matrix resin is impregnated in the layer of the reinforcing fibers and, by pressing the layer into the inner surface of the mold so as to be solidified under the state, thereby forming it into the configuration of the inner surface of the mold. Such heat expansive particles are increased in volume by heating and, for such foaming expansive particles, foaming expansive particles in which foaming agents are wrapped with vinylidene chloride, polystyrene or the like are is given for example. |
