| 摘要 |
The present invention relates to a copolymer for a precursor fiber of a carbon fiber and the carbon-fiber using the same, to help expression of the properties of the carbon fiber, and specifically, to a precursor fiber of a carbon fiber and the carbon-fiber using the same, containing an acrylic homo polymer (A) and an acrylic copolymer (B) including at least one copolymer at a ratio of A (wt%) = 100 - B, B (wt%) = (C × (Tf - Ti)) / ∇H, 95 < Tf - Ti < 150, 1200 < ∇H (j / g) < 3500, C = 1.162 J/g·°C, wherein Tf is a finish temperature of an oxidation reaction of a copolymer, Ti is a start temperature of the oxidation reaction of the copolymer, and ∇H is an oxidation calorific value of the copolymer. |
