| 摘要 |
The present invention includes an anode cell and a cathode cell in which an anode and a cathode are installed, respectively. The present invention provides a surface treatment method for the carbon fiber of a large tow, wherein the method includes a step of supplying an electrolytic solution to an electrolyte cell in which 0.05 to 0.2 cn/dpf of tension and 0.5 to 1.5 wt% of moisture content are set and a step of reforming the surface of the carbon fiber of a large tow while moving the carbon fiber of a large tow with 24,000 or more of filaments into the electrolytic solution into the electrolyte cell. |
