METHOD FOR PRODUCING CARBON FIBER/POLYAMIDE RESIN COMPOSITE PREPREG, AND CARBON FIBER/POLYAMIDE RESIN COMPOSITE MATERIAL

摘要

PROBLEM TO BE SOLVED: To satisfy needs for: a method for producing a carbon fiber/polyamide-based resin composite material, which offers high productivity and high strength; a carbon fiber/polyamide-based resin composite material which has excellent strength in a direction orthogonal to the fiber axis even after passing through a fabrication step under a high-temperature environment.;SOLUTION: The method for producing a carbon fiber/resin composite material comprises a step of impregnating carbon fiber bundles oriented in one direction with a molten polyamide resin under contact with air, wherein when melting the polyamide resin, a halogenated copper compound and a halide salt are added. The carbon fiber/polyamide resin composite material is one obtained by impregnating carbon fiber bundles oriented in one direction with a polyamide resin containing a halogenated copper compound and a halide salt, wherein when an air oxidation treatment is conducted at 250°C for 10 minutes, strength retention in a 90° direction to the fiber axis is 0.8 or more.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT