THE EFFECTS OF REPROCESSING STEPS ON PHYSICAL, PRINTABILITY, MORFOLOGY, AND MECHANICAL PROPERTIES OF ELECTRONIC WASTE (E-WASTE) HIGH-IMPACT POLYSTYRENE (HIPS) 3D PRINTING FILAMENT

• Main Author: Wing Hanitio, Edbert
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/67637
• Institution: Institut Teknologi Bandung

High-impact polystyrene (HIPS) is a thermoplastic polymer with high toughness. This makes HIPS a suitable material choice for cases in old electronic products. After a while, old electronic products are replaced with new ones which increase electronic waste (e-waste). Conversely, the advancement of additive manufacturing technology like 3D printing increased the need for 3D printing filament raw materials. In this research, HIPS in e-waste was recycled into 3D printing filament and then the effects of reprocessing steps on the physical properties, printability, morphology, and mechanical properties of recycled HIPS filament were studied. Development of HIPS 3D printing filament from electronic waste was conducted using a single screw extruder at 195±5?C with a screw speed of 19,7 rpm and a puller speed of 15,5±0,5 rpm. The extrusion process was carried out until the HIPS filament underwent 1, 2, and 3 reprocessing steps. After that, all three HIPS filaments were tested with eSun commercial HIPS filament to compare in density, melt flow rate (MFR), printability, colorimeter, tensile, bending, and impact strength. The results showed that with increasing reprocessing steps, there had been a reduction in density, printability, colorimeter, and impact strength decreased. In general, HIPS filament with one reprocessing step has the best printability value and mechanical properties comparable to commercial HIPS filament.