Characterisation of coal tar pitches by thermal analysis, infrared spectroscopy and solvent fractionation

摘要

Four commercially available coal tar pitches have been characterised through the combination of conventional techniques used for pitch characterisation, like elemental analysis and solvent fractionation, and infrared spectroscopy (FTIR) and thermal analysis (thermogravimetry (TG)-differential thermal analysis (DTA)). The results obtained from this set of experiments provide suitable information to establish differences between the materials according to their industrial origin and preparation method.