An experimental investigation of properties of polyethylene reinforced with Al powders |
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| Authors: | Victoria Chifor Zafer Tekiner Mehmet Turker and Radu Orban |
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| Institution: | (1) Department of Electronics and Communication Engineering, S.J. College of Engineering, Mysore, 570006, India;(2) Department of Polymer Science and Technology, S.J. College of Engineering, Mysore, 570006, India; |
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| Abstract: | Mechanical and physical properties, such as tensile strength, elongation at break, modulus of elasticity, Shore D hardness,
melt flow rate (MFR), and electrical and thermal conductivities of composites with high density polyethylene matrix reinforced
with Al powders were investigated experimentally. Measurements of the mechanical and physical properties were performed up
to a reinforcing component concentration of 30% volume Al powder and compared with mathematical models from the literature.
The obtained results have shown that experimental data were in good agreement with theoretical data. The ultimate tensile
strength (UTS) and elongation at break decreased with increasing Al powder content, which was attributed to the introduction
of discontinuities in the polymer structure, and modulus of elasticity increased with increasing Al content. The composite
preparation conditions allowed the formation of a random distribution of metallic particles in the polymer matrix volume for
system high density polyethylene-Al (HDPE-Al). There was a cluster formation of Al particles at higher Al contents in the
polymer matrix. Electrical and thermal conductivity values of HDPE-Al composites were higher than pure HDPE values. |
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