| abstract |
The present invention is a composite material comprising: carbon fibers A, including carbon fiber bundles A1 satisfying Li/(Ni×Di 2 ) of 6.7×10 1 or more and 3.3×10 3 or less; and thermoplastic matrix resin, fibers of carbon fiber A The length is 5 mm or more and 100 mm or less, Lw A1 /(N A1 ave×D A1 2 ) is 1.0×10 2 or more and 3.3×10 3 or less, the average bundle width W A1 of the carbon fiber bundle A1 is less than 3.5 mm, and the carbon fiber bundle A1 is relatively In carbon fiber A, it is 90 vol% or more. Li: Fiber length (mm) of the carbon fiber bundle, Di: Monofilament diameter (mm) of the carbon fibers constituting the carbon fiber bundle, Ni: The number of fibers (the number) of the monofilament contained in the carbon fiber bundle, Lw A1 : The value of the carbon fiber bundle A1 Weight-average fiber length (mm), N A1 ave: the average number of fibers (number) of the monofilaments contained in the carbon fiber bundle A1, D A1 : the monofilament diameter (mm) of the carbon fibers constituting the carbon fiber bundle A1. |