EFFECTIVE BLENDING OF ULTRAHIGH MOLECULAR WEIGHT POLYETHYLENE WITH POLYETHYLENE VIA SOLID-STATE SHEAR PULVERIZATION

摘要

Blending ultrahigh molecular weight polyethylene (UHMWPE) with high-density polyethylene (HDPE) via conventional processing methods is challenging; as a result of the vast viscosity mismatch between UHMWPE and HDPE, blends prepared via melt processing contain UHMWPE agglomerates dispersed in HDPE. We demonstrate the utility of solid-state shear pulverization to effectively blend 20 wt% UHMWPE with HDPE. Using rheology, differential scanning calorimetry, and tensile testing we studied the effect of UHMWPE composition on blend properties.