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Development of 70/30 Poly-l-dl-Lactic Acid Filaments for 3D Printers (Part 1): Filament Manufacturing and Characterization of Printed Samples for Use as Bioabsorbable Products

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Abstract

The aim of this work was to manufacture 70/30 poly-l-dl-lactic acid (PLDLLA) filaments for three-dimensional (3D) printers by using the extrusion technique and to study the properties of filaments and printed plates for surgical fracture stabilization. Different extrusion methodologies were tested and filaments were analyzed in terms of homogeneity, accuracy diameter, finishing surface morphology, and chemical degradation. X-ray diffraction and differential scanning calorimetry showed that the filaments have less crystallinity than does the raw material. Infrared and thermogravimetric analysis showed no evidence of chemical degradation. Surgical plates made with the filaments revealed small changes in the material properties after the printing process. PLDLLA filament extrusion and 3D printing are a promising way to satisfy the demand of implantable bioabsorbable products.

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Acknowledgements

The authors thank Professor Ronaldo de Biasi for reading and considerably improving the manuscript and the Carlos Chagas Foundation for Research Support from the Rio de Janeiro State (FAPERJ) and the National Council of Technological and Scientific Development from Brazilian Government (CNPq) for supporting this study via the following grants: E-26/201.759/2015, E-26/201.828/2015, E-26/010.001.262/2015, and 449472-2014-0.

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Authors and Affiliations

  1. Laboratory of Biomaterials, Instituto Militar de Engenharia, Rio de Janeiro, Brazil

    Daniel Jogaib Fernandes, Rafael Vidal, Ricardo Pondé Weber & Carlos Nelson Elias

  2. Aditiv Company, Rio de Janeiro, Brazil

    Rafael Vidal

  3. Fundação Centro Universitário Estadual da Zona Oeste, Rio de Janeiro, Brazil

    Luciana Portal da Silva

Authors
  1. Daniel Jogaib Fernandes
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  2. Rafael Vidal
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  3. Luciana Portal da Silva
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  4. Ricardo Pondé Weber
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  5. Carlos Nelson Elias
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Correspondence to Daniel Jogaib Fernandes.

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Fernandes, D.J., Vidal, R., da Silva, L.P. et al. Development of 70/30 Poly-l-dl-Lactic Acid Filaments for 3D Printers (Part 1): Filament Manufacturing and Characterization of Printed Samples for Use as Bioabsorbable Products. JOM 69, 71–77 (2017). https://doi.org/10.1007/s11837-016-2168-7

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  • DOI: https://doi.org/10.1007/s11837-016-2168-7

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