Strength evaluation and melt rheology of highly mineral filled polymer composites

This study investigated the effect of high mineral-filled high-density polyethylene (HDPE). The filler as natural zeolite highly affected the mechanical, rheological, and physical properties of the composites. The HDPE composite was extruded up to 60 weight percentage(wt%) to make it possible to use as heat sink material. The electron microscope showed that zeolite has homogeneous distribution inside the composite with zeolite increases even its high filled version. The results showed favorable rheological behavior of the composites that the zeolite has negligible effect on viscosity within the highly filled HDPE. The composites kept the shear thinning behavior in the high shear rate as well. The amount of zeolite filler content improved the mechanical properties of the composites with an increase in the content of the natural filler.