Surface wettability of atmospheric dielectric barrier discharge processed Armos fibers

► The atmospheric DBD plasma had great influence on Armos fiber surface wettability. ► Appropriate exposure time increased the oxygen content and surface roughness greatly. ► The improvement of fiber surface polarity and roughness aided good wetting. ► Single fiber tensile strength was little affected with the wettability enhancement. ► After longer exposure to the plasma, the fiber surface free energy decreased.