keywords: Ageing, degradation, ductability, elongation, embrittlement, tensile-strength
Natural weathering degradation of the blends of recycled polypropylene (PPr) with Polystyrene (PS), Polyvinyl chloride (PVC) and Virgin Polypropylene (PPv) was studied. Samples of PS, PVC and PPv were blended with PPr for the purpose of improving its Tensile strength and the embrittlement time which are some of the mechanical properties of polymer. While no particular blends had over all good result of the mechanical Properties tested, however, PS/PPr produced the best result of Tensile strength, followed by the blends of PPv/PPr and PVC/PPr. Also PS blend resist embrittlement more than PPv and PVC blends.