Effect of Filament Pre-Drying on the Microstructure and Porosity of 3D Printed PLA

Authors

  • Rahimah Abdul Hamid Fakulti Teknologi dan Kejuruteraan Industri dan Pembuatan, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia
  • Siti Hidayah Husni Perbadanan Harta Intelek Malaysia, Seksyen 52, 46200 Petaling Jaya, Selangor, Malaysia
  • Teruaki Ito Graduate School of Computer Science & Systems Engineering, Okayama Prefectural University, Soja-shi, Okayama 719-1197, Japan
  • Shajahan Maidin Fakulti Teknologi dan Kejuruteraan Industri dan Pembuatan, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia
  • Madihah Maharof Department of Mechanical and Production Engineering, Islamic University of Technology Board Bazar, Gazipur-1704, Bangladesh

DOI:

https://doi.org/10.37934/armne.24.1.8594

Keywords:

PLA filament, pre-drying, microstructure

Abstract

This paper explored the effect of filament pre-drying before 3D printing. A comparison between the undried and pre-dried 3D printed PLA was evaluated in terms of porosity, microstructure, and polymeric chain bonding. Three conditions were examined: a new PLA as a reference, used PLA filament stored in a vacuumed bag with 50g desiccant, and used PLA exposed to humidity for 48h, 96h, and 150h. The parameter setting for drying and 3D printing was constant for all conditions. As a result, pre-drying the filament resulted in a less porous microstructure, shorter interlayer gap, and better interlayer adhesion. The pre-drying method offers a better microstructure than undried filament. The density of the pre-dried sample was increased as the porosity decreased due to the improvement in the mass flow rate upon the extrusion process. Lastly, the FTIR analysis shows that the pre-dried filament exhibits an O-H molecule free from the O-H region broad peak, which shows no or almost no presence of water (H2O).

Author Biographies

Rahimah Abdul Hamid, Fakulti Teknologi dan Kejuruteraan Industri dan Pembuatan, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia

rahimah.hamid@utem.edu.my

Siti Hidayah Husni, Perbadanan Harta Intelek Malaysia, Seksyen 52, 46200 Petaling Jaya, Selangor, Malaysia

sitinurhidayah@myipo.gov.my

Teruaki Ito, Graduate School of Computer Science & Systems Engineering, Okayama Prefectural University, Soja-shi, Okayama 719-1197, Japan

tito@ss.oka-pu.ac.jp

Shajahan Maidin, Fakulti Teknologi dan Kejuruteraan Industri dan Pembuatan, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia

shajahan@utem.edu.my

Madihah Maharof, Department of Mechanical and Production Engineering, Islamic University of Technology Board Bazar, Gazipur-1704, Bangladesh

mmmaharof@iut-dhaka.edu

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Published

2024-10-31

How to Cite

Abdul Hamid, R., Husni, S. H., Ito, T., Maidin, S., & Maharof, M. (2024). Effect of Filament Pre-Drying on the Microstructure and Porosity of 3D Printed PLA. Journal of Advanced Research in Micro and Nano Engineering, 24(1), 85–94. https://doi.org/10.37934/armne.24.1.8594

Issue

Vol. 24 No. 1: October (2024)

Section

Articles