N₂–H₂ plasma functionalization of carbon fiber fabric for polyaniline grafting

Carbon fiber fabric was treated with radiofrequency plasma in a N 2 /H 2 gas mixture to create functional groups with –NH x or –N, thus promoting conditions for polyaniline (PAni) grafting. The morphology and chemical structure of PAni on the carbon fiber surface were assessed by scanning electron microscopy and Raman spectroscopy, showing strong interactions between the PAni and the carbon fiber, especially for the 5‐min plasma‐treated...