| 摘要 |
A preparation method of a carbon fiber and the carbon fiber prepared by the same are provided to substantially reduce time and costs by irradiating radiation on a green fiber at room temperature, thereby stabilizing the green fiber within a short time. A preparation method of a carbon fiber comprises a first step of irradiating radiation onto a green fiber as raw material of the carbon fiber in the air to stabilize the green fiber, and a second step of heating the stabilized green fiber to a temperature range of 600 to 1500 deg.C in an inert gas atmosphere, thereby carbonizing the green fiber to prepare the carbon fiber. The green fiber is selected from the group consisting of a rayon-based fiber, a pitch based general-purpose fiber, a phenolic fiber, and a polyacrylonitrile-based fiber. The radiation is selected from the group consisting of gamma ray, electron beam, ion beam, and ultraviolet ray. The inert gas is selected from the group consisting of nitrogen, helium, neon, and argon. |
