| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for improving both the electroconductivity and mechanical hardness of the surface of a polymer as a result of altering the molecular bond structure of the polymer through collision reaction of the polymer molecule, or the like, with ions irradiated by low-energy ion beam irradiation. SOLUTION: This method comprises irradiating a polymeric material such as PPO (polyphenylene oxide) or MIPPO(modified polyphenylene oxide) as an electrical nonconductor with ions of one of various elements to improve both the electroconductivity and mechanical properties such as harness of the surface of the polymeric material to produce a new material. The apparatus is such one that the above technique has been made industrially applicable. More specifically, the method includes a method for affording polymeric material such as PPO or MIPPO as an electrical nonconductor with a wide range of uniform and stable surface electroconductivity (106 to 1011 Ω/sq) on a broad area through vacuum-irradiating, utilizing a devised unit, under accurate control, e.g. ions accelerated with a relatively low energy of about 50-100 keV from an ion source capable of generating electrically changed current ions at several tens mA or greater, and a surface treatment method for improving the mechanical properties such as surface hardness of the polymeric material. The apparatus is an ion beam irradiation apparatus intended for the mass production of such a polymeric material as mentioned above and enabling the above method to be realized on a commercial scale. |
