Suitability of recycled HDPE for 3D printing filament

Abstract

3D printing technology has been popular lately and the most used filament is ABS and PLA. There is a concern about how the filament should be made of recycled material, therefore this research was aimed to find recycled HDPE specification and extrusion parameters for 3D filament. Comparisons were made between ABS, PLA and recycled HDPE in order to obtain these parameters. The mechanical properties of recycled HDPE such as melt flow, tensile strength, young modulus and yield strain was observed to go along the PLA parameters used as 3D filament. The result shows that recycled HDPE has the potential properties as 3D filament with essential puling speed and specific cooling method employed.