METHOD FOR CONTINUOUS SURFACE TREATMENTS OF CARBON FIBERS BY ATMOSPHERIC PRESSURE PLASMA

摘要

PURPOSE: A method for continuously treating the surface of carbon fibers using an atmospheric pressure plasma device is provided to manufacture carbon fiber having excellent interface coherence since electric energy, processing time, gas mixing rate, and distance between electrode and carbon fiber are optimized. CONSTITUTION: A method for continuously treating the surface of carbon fibers using an atmospheric pressure plasma device comprises the following steps. Carbon fiber material comprises a carbon black, a carbon fiber, or fullerene. The intensity of atmospheric pressure plasma is 10-600W. The processing time of the atmospheric pressure plasma is 1-600sec. The atmosphere in plasma processing is mixed with helium gas 80-99.99% and oxygen gas 0.01-20%. The distance between an electrode and the carbon fiber material is 1-50mm. The frequency in the plasma processing is 13.56 MHz.