The Effect Eluoropolymer Processing Additives and Stearate Additives Level have on Processing of HDPE Resins

摘要

Extrusion processing of HDPE resisn can be improved by the use of various additives. This practice is widely accepted, and the specific additive selected can have measurable effects on the resin processing. These additive effects may be both positive and negative, and they may be observed simultaneously. It is the desire of the processor to minimize the negative effects and maximize the positve effects. An experiment was performed to evaluate the effectiveness of calcium stearate and fluoropolymer to improve the extrusion processing of HDPE resin. Elimination of melt fracture, reduction in extrusion prressures, and the rate of formation of die build up were measured and used for comparison.