석탄-물 혼합체의 유변학적 특성

초록

We investigated the flocculation state of CWM to obtain the optimum slurry fuel depending on the surfactant type and the type of stabilizing additives. For the elastic behavior of flocculated CWM suspension, we orbserved the shear-strain-thickening behavior in oscillatory shear experiment at the highly shear rates, in spite of the fact that CWMs with relatively low stabilizing agents show shear-thinning behavior in sheady shear experiments like in the most flocculated suspensions. Loop tests of dynamic strain-sweep measurements were carried out for CWM with various surfactant and stabilizing agents.