38.溶媒抽出とレオロジー測定からみた石炭の軟化溶融機構(石炭利用における科学と工学の接点)

抄録

Temperature-variable dynamic viscoelastic measurement was applied to coals during heating. The temperatures at maxima of elastic (G') and viscous (G") moduli corresponded to the softening and re-solidification temperatures of coals, and those at minima of them were given around maximum fluidity temperatures detected by Gieseler plastmeter, the maxima of which had a good relationship with the maximum fluidity. The temperature-variable dynamic viscoelastic measurement was found to be a precise and convenient means for estimating the fluidity of coals.