Restricted accessResearch articleFirst published online 2025
Investigation of the effects of TiO 2 nanoparticles and infill patterns on the mechanical properties of 3D-printed antibacterial ABS/TiO 2 nanocomposites
This study investigated the effects of antibacterial TiO2 nanoparticles on ABS/TiO2 nanocomposites. To achieve this, varying amounts of TiO2 nanoparticles and ABS granules were blended and extruded into ABS/TiO2 nanocomposite filaments at an optimal temperature. The resulting components were printed using Fused filament fabrication (FFF) 3D printers in diverse infill patterns. The study analyzed how sample preparation conditions, such as TiO2 percentage, infill density, and pattern, affected the mechanical properties of the printed ABS/TiO2 nanocomposite samples. Findings revealed a uniform distribution of nanoparticles within the polymeric matrix at all concentrations. Mechanical properties decreased when TiO2 content surpassed 5 wt%. The flexural strength of all specimens remained largely constant. In comparison to pure ABS, the TiO2 nanocomposite with 5 wt% TiO2 showed enhanced flexural strength, modulus, and toughness, with increases of 11.82%, 16.82%, and 21.86%, respectively.
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