A well-proven fact today is that flexible and hard mineral particles can improve the impact strength of semi-crystalline polymers. Compared to flexible particles, calcium carbonate increases strength but does not affect the glass transition temperature of the final mixture. Polical products are the materials with extremely high thermal conductivity. Therefore, they allow the extrusion heat to be reduced. Calcium carbonate lowers the melt viscosity and reduces the shear in the auger. A significant increase in production efficiency is provided due to faster cooling of the film and a reduction in extruder pressure.
Calcium carbonate, as well as an extraordinary increase in productivity; will increase the quality of polyethylene balloon by increasing the swelling stability. This also relates to the thermal conductivity of calcium carbonate, which is 5 times larger than that of the polymer. Better melt strength and excellent cooling give the balloons a noticeable stability even at very high line speeds. The use of calcite provides many advantages such as increased capacity in film extrusion, improved printing properties, increased tensile and tear strength.
