A thorough investigation was conducted in the present work on the mechanical and thermal characteristics of polycaprolactone/carbonyl iron particle composites. For composite fabrication, 3D printing technique was utilized. The fabricated composites were categorized as oriented, non-oriented and polycaprolactone samples based on orientation and concentration of filler particle. To evaluate the effect of orientation of carbonyl iron particle, two orientation directions, viz. parallel orientation, and perpendicular orientation with respect to loading direction were tried. The sample with parallel orientation exhibited the highest tensile strength followed by 90° orientation and pure polycaprolactone samples respectively. Oriented composites exhibited elevated dynamic modulus in comparison to the composites without orientation. The oriented composites demonstrated stiffness and tensile strength in the order of 13.66 ± 0.94 MPa and 3.79 ± 0.26 MPa respectively. The proposed methodology in the present study can be used to align carbonyl iron fillers in polymer matrix to tailor the mechanical, viscoelastic, and degradation properties.
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