Journal of Material Sciences & Engineering

Nam-Soo Kim

Publications

• Research Article
  Characterization of 3D Printed PLA/PCL/TiO₂ Composites for Cancellous Bone
  Author(s): Nájera S, Michel M, Kyung-Hwan J and Nam-Soo KimNájera S, Michel M, Kyung-Hwan J and Nam-Soo Kim
  
  The reproduction of a 3D bone structure with suitable porosity, which allows the flow of nutrients, blood, oxygen and mineral, remains a problem using conventional methods. A material that mimics their properties was developed by optimizing the ratio of a biodegradable blend of immiscible polylactic acid (PLA) and poly-ε-caprolactone (PCL). In this study, PLA and PCL particularly optimize the strength of the artificial cancellous bone by supplying the initial support strength lasting 6 months to 2 years and allowing for the gradual degradation desired in the human body. This study focused on the mechanical properties of successfully printed 3D structures. The ultimate tensile strength was modified by blending different ratios of PLA and PCL resulting in an optimum value of approximately 30 MPa when the ratio of PLA to PCL reached 3:1. The addition of 1 wt.% of titanium dioxide (T.. Read More»
  DOI: 10.4172/2169-0022.1000417

  Abstract PDF