Study The Effect of Nanoclays on The Mechanical Properties of Polypropylene/Polyamide66 Nanocomoposites

Nanocomposites based on polypropylene/polyamide66 (PP/PA66) nanoblends containing organophilic montmorillonite (OMMT) and maleic anhydride grafted polypropylene (PP-g-MAH) were prepared by melt compounding method followed by injection molding. Two different types of nanoclays were used in this work, i.e. DELLITE LVF (untreated): is a nano-clay deriving from a naturally occurring especially purified montmorillonite and DELLITE 67G (treated with a high content of quaternary ammonium salt (dimethyl dehydrogenated tallow ammonium). The rheological results revealed a drastic reduction in MFI with a levelling off at 5 wt.% for the nanoblends containing treated clay. The impact properties of PP/PA66 modified nanoblends were improved significantly in the presence of treated nanoclay. The morphology of the nanocomposites was studied using the XR diffraction (XRD). XRD results revealed the formation of nanoblends as the nanoclay was intercalated and exfoliated.