Abstract
AbstractPoly(vinyl chloride) compounds offer a wide range of properties from elastomeric to rigid. For this reason they are well suited for many extrusion applications. However, many processors shy away from PVC because of its challenging process‐ability: PVC is shear sensitive, susceptible to thermal degradation, and highly elastoviscous. This study, although limited, attempts to remove some of the complexity behind PVC extrusion. A semirigid PVC compound was processed on a small laboratory extruder. A factorial experiment was followed to determine the effects of barrel temperature and screw speed on melt temperature, residence time, output, and head pressure. Understanding these fundamental relationships is intrinsic to successful PVC extrusion.
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