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In this
paper, the preparation and compare of some mechanical and
physical properties of two groups of polymer blends consisting
of polyvinyl chloride with polypropylene (PP-PVC) and poly-vinyl
chloride with high-density polyethylene (HDPE-PVC). Using a
twin-screw extruder, three weight percentages of PP and HDPE (5,
10 and 15%) were used to prepare the polymer blends.
Experimental investigation was carried out for analyzing the
mechanical properties like tensile strength, flexural strength,
compression, impact, and hardness and physical properties
(thermal characteristics and melt flow index) for the polymer
blend samples. The results show that the polymer blend
(HDPE-PVC) get higher values than polymer blend (PP-PVC) in
fracture strength, young´s modulus, elongation, flexural
strength, creep resistant and maximum shear stress and thermal
characteristics, whereas the polymer blends (PP-PVC) get higher
values in impact strength, fracture toughness, hardness and
compression and melt flow index. Besides, the increment in PP or
HDPE content weak the properties of the polymer blends and the
samples with (5%PP:95%PVC) and (5%HDPE:95%PVC) were the best
among the other polymer blends samples |
