Predicting the yield stress of paraffin-wax suspensions

An empirical modification of the Yodel model was developed for the prediction of the yield stress of concentrated, particulate, paraffin-wax suspensions, with a solids loading in the range of 47-57 vol.%, used in the low-pressure injection moulding (LPIM). The Yodel model takes into account the volume fraction of the solids, the particle size distribution (PSD), the maximum packing, the percolation threshold and the interparticle forces. However, yield-stress prediction over a broader range of volume fractions, for systems with a low interparticle attraction (