HIPS Filament

Catalog	ACMA00031087
Description	HIPS is a short for high impact polystyrene. It has very similar properties to ABS, and is commonly used by model makers.
Appearance	Light Green, Golden, Deep Blue, Orange, Red, Silver, Pink, Gray, Black, Luminous Blue, White, Brown, Yellow, Natural, Dark Green, Purple
Application	FDM 3D Printer
Fiber Diameter	1.75mm/3.0mm
Material	HIPS
Packaging	NW: 1.0kg/roll GW: 1.4kg/roll
Type	HIPS Filament

Case Study

Effects of Multiple Recycling on the Properties of High Impact Polystyrene (HIPS) Filament

Hanitio, Edbert Wing, et al. Materials, 2023, 16(9), 3412.

This study recycled HIPS from electronic waste through an extrusion process and used it as 3D printing filament. The effects of recycling on printability, physical properties, and mechanical properties in horizontal and vertical directions were studied.
Key Findings
· Mechanical properties and printability of recycled filaments remained strong apart from the fourth cycle that showed reduced printability because of a higher melt flow rate.
· The melt flow rate and density of recycled HIPS filaments changed because of thermal-oxidative degradation during reprocessing.
· The rHIPS-4 filament achieved the greatest horizontal tensile strength measuring 21.48 MPa while the rHIPS-3 filament reached its maximum vertical tensile strength at 15.69 MPa.
· The rHIPS-4 filament demonstrated superior flexural strength values in both infill orientations with 34.35 MPa horizontally and 22.79 MPa vertically.
· In terms of impact strength, the rHIPS-2 filament achieved the highest values: 30.34 kJ/m² horizontally and 6.37 kJ/m² vertically.
· Overall, the mechanical properties and printability of the recycled HIPS filaments suggest that the number of reprocessing steps can be increased until the recyclability limit of rHIPS as a 3D printing filament is reached.

Study on the Mechanical Properties of 3D Printed HIPS Polymer Lattice Structure

Jin, Feng, et al. Manufacturing Technology, 2024, 24(3), 378-392.

The mechanical properties of 3D printed HIPS polymer lattice structure are worthy of study and analysis, which can provide more valuable references for future material development in the fields of manufacturing, architectural design and civil engineering. In this work, 4 different 3D printed HIPS polymer crystal structure models were made and their compression and mechanical properties were evaluated.
Key Findings
· Regarding the influence of the plate on the HIPS polymer lattice structure, structures designed without plates are more compressible than those with plates, indicating poorer compression resistance and increased vulnerability to damage. Furthermore, energy absorption is lower in unplated structures. The presence of the plate enhances the structural stability of the HIPS polymer lattice to some degree.
· When comparing different numbers of unit cells, an increase in their quantity leads to improved mechanical properties for the 3D printed HIPS polymer lattice structure. Conversely, a smaller number of unit cells within a specific size range results in a more stable lattice structure and enhanced compression resistance. However, beyond a certain threshold of unit cells, the peak strength of the crystal structure tends to stabilize.
· Similarly, as the number of vertical unit cells increases, the stability of the HIPS polymer lattice structure diminishes, resulting in improved compressibility but weaker mechanical properties. A shorter vertical configuration enhances stability and compression resistance within a limited range of vertical unit cells.