| abstract |
A method is described for producing a fiber-reinforced plastic substrate that simultaneously satisfies three points of joinability, mechanical characteristics, and productivity, the method including the following components [A], [B], and [C], wherein at least the following drawing step, first impregnating step, second impregnating step, and take-up step are continuously and sequentially performed while the component [A] is caused to run:[A] a reinforcing fiber[B] a thermoplastic resin[C] a thermosetting resin<drawing step> step of drawing a continuous reinforcing fiber sheet containing the component [A];<first impregnating step> step of impregnating either the component [B] or the component [C] from one surface of the continuous reinforcing fiber sheet to obtain a fiber-reinforced plastic intermediate in which either the component [B] or the component [C] is disposed on a first surface;<second impregnating step> step of impregnating the other of the component [B] or the component [C] from a second surface opposite to the first surface to obtain a fiber-reinforced plastic substrate; and<take-up step> step of taking up the fiber-reinforced plastic substrate. |