| abstract |
The present invention provides a composite material and a method for producing the composite material, the composite material comprising: carbon fibers A, carbon fiber bundles A1 having Li/(Ni×Di 2 ) of 6.7×10 1 or more and 3.3×10 3 or less; and a thermoplastic matrix resin Reaction force when the fiber length of the carbon fiber A is 5 to 100 mm, the carbon fiber bundle A1 is 80 vol% or more and less than 100 vol% relative to the carbon fiber A, and the carbon fiber aggregate taken out by removing the matrix resin contained in the composite material is compressed to the thickness Tf Reaction force P is 0.05 to 1.00 MPa, and in this composite material manufacturing method, a composite composition containing carbon fibers and a thermoplastic resin is impregnated using a compression impregnation apparatus. Li: fiber length (mm) of the carbon fiber bundle, Di: single filament diameter (mm) of the carbon fibers constituting the carbon fiber bundle, Ni: the number of fibers (the number) of the filaments included in the carbon fiber bundle, Tf: (the carbon fiber aggregate Weight per unit area ÷ carbon fiber density) × 3 (mm). |