Determination of Gieseler's Plasticity Parameters of Coal Based on Dielectric Property : Initial softening temperature (ST), Maximum Fluidity Temperature (MFT), and Re-solidification Temperature (RT)

Abstract

Since not only the polar characteristics, but also the mobility of macromolecular network structure of coal is used to be reflected on the dielectric property, the measurement of the temperature dependency of the dielectric property can be a powerful tool to evaluate the thermal plastic nature of the macromolecular association in coal. This paper is describing a new methodology to determine the Initial Softening Temperature (ST), and Maximum Fluidity Temperature (MFT) of coal, based on the dielectric property.