The t-RTM molding apparatus and method for molding a fiber-reinforced plastic according to one aspect of the present invention is characterized in that reactive ε- caprolactam is melt-injected into a fiber preform, which is a molding to be molded, The present invention relates to a t-RTM molding apparatus for molding a fiber-reinforced plastic by polymerization, and a t-RTM molding apparatus and a molding method, characterized in that molten reactive ? -Caprolactam, a catalyst and a reaction initiator are mixed sequentially or simultaneously.
展开▼