It is well known that even without adding a third component
or a compatibilizer into an immiscible blend, the processing
condition will be an important factor in controlling the
microstructure, the inter particle distance and the particle
diameter of the disperse phase. All of these factors govern the
performance of the physical and mechanical properties. Various
screw speeds in extrusion process were used to process
the PET/NR blends of 80/20 wt% composition.