Recycling Polymer Blend made from Post-used Styrofoam and Polypropylene For Fuse Deposition Modelling

The present project focus on Recycling Polymer Blend made from Post-used Styrofoam and Polypropylene for Fuse Deposition Modelling. The filament made from this recycled material will be able use for most commercial FDM 3D printer.

Fuse deposition modelling (FDM) has become a revolutionary manufacturing technology as it offers numerous advantages, including fast production process and cost-effectiveness.. Expanded polystyrene (EPS) has been extensively used as packaging materials for many industries but rarely be recycled, as its relatively large volume with minimal weight is unconducive for transportation. This research aims to utilize expended polystyrene waste as FDM feedstock which could reduce the environmental impact caused by the EPS waste by promoting the recycling of post-used EPS. This research also aims to enhance the ductility of recycled PS (rPS) made from EPS waste by blending it with polypropylene (PP) to reduce the brittleness of neat rPS FDM filament. Different ratio of rPS, PP, and maleic anhydride-grafted-polypropylene resin (MA-g-PP) will be prepared and extruded as FDM filament with a diameter of roughly 1.75 mm via melt-blending in a single-screw desktop filament extruder. Standard specimens for each specific mechanical tests will be 3D printed at criss-cross raster angle and low layer thickness to enhance the tensile strength. Thermal analysis will be conducted on the fabricated filaments, while mechanical tests and morphological analysis will be performed on the printed specimens. The effect of blend composition on the analysed properties will be studied.

Video Presentation

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