Abstract
AbstractOn the basis of a thin‐wire contact electrode structure, a nonuniform electric field is designed to realize diffuse discharge in atmospheric air. A new method of high‐efficiency treatment of carbon fiber fabrics by glow discharge plasmas at low discharge voltage is proposed. Through this method, carbon fiber fabrics are directly used as electrodes, the plasmas are directly formed on the surface, and a strong electric field region can be formed on the surface of carbon fiber fabrics. The high‐active plasmas generated in this study can not only introduce nitrogen functional groups that are difficult to be introduced by traditional air plasma treatment methods and a large number of oxygen functional groups on the surface of carbon fiber fabrics but also improve the surface roughness and wettability of the material. In addition, the important effects of surface electric field intensity and plasma treatment time on the modification effect were investigated. It lays a good technical foundation for the industrial application of carbon fiber surface modification with high efficiency and continuity in atmospheric air.
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