Figure 4.

Effect of polypropylene (PP) content (hollow markers) and melt mass-flow rate (MFR, solid markers) on the (a) tensile modulus ($E_t$), (b) elongation at break (${\epsilon }_f$ ) and (c) tensile impact strength ($a_{tN}$ ) of PE-LD and mixed PO regranulates. Effect of 5 wt.% ethylene-based olefin block copolymer on the (d) $E_t$, (e) ${\epsilon }_f$ and (f) $a_{tN}$ of PE-LD and mixed PO regranulates (solid markers prior to compatibilisation and hollow markers after).