Abstract
Recycling waste plastics/polymers is a waste management technique that is of interest to many researchers and corporate entities working in their respective areas. In the past 20 years, several applications and developments in this field have been reported. However, very few have reported on plastics waste management technique of recycling polymers metal powder reinforcement. In the present work, we report efforts that have been made to recycle waste plastics/polymers with metal powder reinforcement by controlling the melt flow index (MFI). Fused deposition modeling wires made of 100% low-density polyethylene (LDPE), LDPE+6% Fe, 100% high-density polyethylene (HDPE), and HDPE +10% Fe were prepared on single-screw extruder by controlling three input parameters (barrel temperature, die temperature, and screw speed). Investigations were performed regarding the parametric optimization of the single-screw extruder for different mechanical and metallurgical properties (such as peak elongation, break strength, shore D hardness, and percentage of porosity). The process parameters were optimized using Minitab software based on the Taguchi L9 orthogonal array and results are supported by photomicrographs.
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