Polymer Blends - PP/HDPE

Norazhar, Ali (2005) Polymer Blends - PP/HDPE. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The main focus of this project is to mixing the polypropylene with high density polyethylene according to the blend composition weight percentage in various processing temperatures. The blends were processed by an injection molding at 250, 260 and 270°C processing temperature. Then the blends were tested with tensile test and hardness in which to carry out the properties and characteristic determination. These blends were tested for stiffness, toughness, ductility and hardness. A universal testing machine and Brinell hardness testing machine were used to determine tensile and hardness properties. Stress-strain curves and Brinell number were obtained and tensile properties were determined. The tensile strength, modulus of elasticity and Brinell hardness number increased significantly with reducing the content of high density polyethylene into polypropylene, besides the ductility is increases. This is due to the addition of the high density into polypropylene which the characteristic of the blends.

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