| 摘要 |
Provided is a carbon fiber composite material characterized in that: the material is made of carbon fibers and a thermoplastic resin; the proportion Y, relative to the total weight of carbon fibers, of carbon fiber bundles (1) for which Mn/(Ln x D) is 8.5 x 10 -1 (mg/mm 2 ) or more, is in a range of 30‰¦ Y<90 (wt%); the average value X of Mn/Ln for the carbon fiber bundles (1) is in a range of 1.1 x 10 -2 ‰¦ X‰¦ 8.1 x 10 -2 (mg/mm); and the Y satisfies Y‰§ 100X + 30. Where, Mn: weight of carbon fiber bundles, Ln: fiber length of carbon fibers, D: fiber diameter of carbon fibers. Obtained is a carbon fiber composite material that can combine high flowability and mechanical properties, has few variations in mechanical properties and shows an excellent adaptability of carbon fibers for small parts such as ribs etc. |
