| 摘要 |
The invention relates to a process for preparing a pre-impregnated fibrous material, in particular in strip form, comprising a fibrous reinforcement and a thermoplastic polymer matrix comprising the following step: i) impregnating said fibrous material in the form of a single roving or of a plurality of parallel rovings with said polymer in the melt state, said polymer in the melt state containing, during said impregnation, an inert gas in the supercritical state, used as processing agent that aids processing by reducing the melt viscosity, said gas preferably being supercritical CO2. |
