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<p>Particle size and matrix type play crucial roles in determining the processability of wood polymer composite (WPC) filament prints. This study investigates the influence of particle size and matrix type on the processability, and the mechanical properties of polypropylene (PP)/rattan WPC filament. The filaments were prepared by mixing rattan particles of various sizes with PP using a single-screw extruder. The variations of rattan particle size used were 30&#xa0;μm, 56μm, 60&#xa0;μm, 82&#xa0;μm, and 108&#xa0;μm. Furthermore, fused deposition modelling (FDM) was conducted using the prepared PP/rattan WPC filament. The result showed that interface compatibility tends to increase with decreasing rattan particle size as evidenced by 30&#xa0;μm particles showing no voids when examined using scanning electron microscopy (SEM). Surface roughness increases as the rattan particle sizes increase as evidenced by the wider distribution of their diameters. Printability and reproducibility improve with decreasing rattan size, having 91.6% reproducibility, even outperforming pure PP and commercial WPC filaments with only 66.6%. The highest tensile strength of the 3D-printed specimen made from PP/rattan WPC filament is exhibited by those with 60&#xa0;μm particles at 14.99&#xa0;MPa. The highest stiffness is observed in specimens with 30&#xa0;μm particles at 2065.55&#xa0;MPa while the highest elongation at break is found in specimens with 82&#xa0;μm particles at 6.49%. In general, 60&#xa0;µm particles produced optimal WPC filaments in terms of processability and mechanical properties.</p>

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Effect of manau rattan (Calamus manan miq.) particle size on processability and mechanical properties of 3D-printed PP/rattan WPC filaments

  • 期刊论文

  • 发表日期：

    2025年2月7日

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  • A. D. Syanatha,
  • R. A. Setiawan,
  • S. Steven,
  • Y. Mardiyati

摘要

Particle size and matrix type play crucial roles in determining the processability of wood polymer composite (WPC) filament prints. This study investigates the influence of particle size and matrix type on the processability, and the mechanical properties of polypropylene (PP)/rattan WPC filament. The filaments were prepared by mixing rattan particles of various sizes with PP using a single-screw extruder. The variations of rattan particle size used were 30 μm, 56μm, 60 μm, 82 μm, and 108 μm. Furthermore, fused deposition modelling (FDM) was conducted using the prepared PP/rattan WPC filament. The result showed that interface compatibility tends to increase with decreasing rattan particle size as evidenced by 30 μm particles showing no voids when examined using scanning electron microscopy (SEM). Surface roughness increases as the rattan particle sizes increase as evidenced by the wider distribution of their diameters. Printability and reproducibility improve with decreasing rattan size, having 91.6% reproducibility, even outperforming pure PP and commercial WPC filaments with only 66.6%. The highest tensile strength of the 3D-printed specimen made from PP/rattan WPC filament is exhibited by those with 60 μm particles at 14.99 MPa. The highest stiffness is observed in specimens with 30 μm particles at 2065.55 MPa while the highest elongation at break is found in specimens with 82 μm particles at 6.49%. In general, 60 µm particles produced optimal WPC filaments in terms of processability and mechanical properties.