Advanced Characterization of Physio-mechanical Behavior in 3D-Printed ABS-HIPS Blends via Comprehensive Analysis
摘要
FDM has developed into a cost-effective and user-friendly technology that has attracted a lot of attention in recent years. However, there are still some challenges when printing soft materials with fused deposition modeling (FDM) technology. This study addresses these challenges by mixing high-impact polystyrene (HIPS) with a versatile material and acrylonitrile butadiene styrene (ABS). As part of an experimental investigation using an additive manufacturing method, the ABS-HIPS blends were 3D printed at different ratios (10%, 30%, and 50% ABS content), including their tensile strength. The study included material preparation, 3D printing, dynamic mechanical analysis (DMA), scanning electron microscopy (SEM), uniaxial tensile test, and compression test to evaluate the thermomechanical properties of the 3D-printed product. The DMA results showed that blends with a higher ABS content had a larger area under the Tan δ curve, reflecting greater energy absorption, while a lower ABS content resulted in a smaller area under the Tan δ curve. In addition, the SEM images showed that increasing the ABS content reduced the gaps between the layers and beads, which contributed to the improved mechanical properties. The printed ABS-HIPS exhibited an elongation at break and tensile strength of 25.46% and 42.39 MPa, respectively. With increasing ABS content, the samples showed stiffer behavior and achieved a tensile strength of 46.83 MPa and an elongation at break of about 34% at a mixing ratio of 50:50. Energy absorption tests showed that the sample with 50% ABS had the highest energy absorption capacity. This study highlights the potential of blending soft and stiff materials to customize their properties for additive manufacturing applications and illustrates the importance of material composition in achieving the desired mechanical performance, printability and functionality of printed objects.