The influence of screw geometry on the extrusion of soft PVC

摘要

AbstractThis article summarizes studies on the single screw extrusion of three soft PVC materials of differentKvalues. The results are analyzed as a function of screw geometry. The operation of the screws as functions of output, economy, plasticating effect, and melt homogeneity was studied. The Maddock mixing screw with no treads after the mixing section performed well, and, especially, its melt homogeneity was excellent.