| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a surface treatment method of carbon fiber in order to obtain the carbon fiber which is excellent in a dynamic property, and suitable for a composite material having an improved property of interface with resin. <P>SOLUTION: The surface treatment method of carbon fiber is a non-contact type which uses a surface treatment apparatus with a tank of electrolytic solution having an anode and a tank of electrolytic solution having cathodes. The method is characterized in that a plurality of cathodes share one anode and a cycle of current circuit is independently formed for each cathode. Two or more units of the surface treatment apparatus may be used in which one unit includes a plurality of cathodes sharing one anode and forming independently a cycle of current circuit. The electric voltage for a cycle of current circuit is preferably 5-30 V, and as the electrolytic solution, an electrolytic aqueous solution of 0.1 or more normal having inorganic acids, inorganic bases or inorganic salts as electrolytes is preferably used. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
