Preparation and characterization of superhydrophobic conductive fluorinated carbon blacks

摘要: Superhydrophobic conductive carbon blacks were prepared by covalent bonding of perfluorocarbon and perfluoropolyether chains on the black surface. Perfluorodiacyl peroxides used as reagents for chemical treatment. Their thermal decomposition produced respectively, perfluoroalkyl radicals that directly bonded polycyclic aromatic structure Measurements contact angles with water molded pellets made powder demonstrated droplets enduringly stable treated blacks. Contact angle values significantly high, exceeding superhydrophobicity threshold. On contrary, adsorbed in few seconds native black. Conductivity measurements showed linkage fluorinated weakly modified electrical properties black, even if surface changed so deeply. The relationship between variations physical–chemical studied combining electron spectroscopy, resistivity measurements, X-ray diffraction, scanning microscopy, area analysis gravimetric analysis. superhydrophobic compared a obtained direct fluorination elemental fluorine, F2.