Preparation of polylactic acid/calcium peroxide compo-site filaments for fused deposition modelling

Journal article


Mohammed, A., Kovacev , N., Elshaer, A., Melaibari, A., Iqbal, J., Hassanin, H., Essa, K. and Memić, A. 2023. Preparation of polylactic acid/calcium peroxide compo-site filaments for fused deposition modelling. Polymers. 15 (9), p. 2229. https://doi.org/10.3390/polym15092229
AuthorsMohammed, A., Kovacev , N., Elshaer, A., Melaibari, A., Iqbal, J., Hassanin, H., Essa, K. and Memić, A.
Abstract

Fused Deposition Modelling (FDM) 3D printers have gained significant popularity in the pharmaceutical and biomedical industries. In this study, a new biomaterial filament was developed by preparing a polylactic acid (PLA)/ calcium peroxide (CPO) composite using wet solution mixing and extrusion. The content of CPO varied from 3% to 24% wt., and hot-melt extruder parameters were optimised to fabricate 3D printable composite filaments. The filaments were characterised using an X-ray diffraction analysis, surface morphology assessment, evaluation of filament extrudability, microstructural analysis, and examination of their rheological and mechanical properties. Our findings indicate that increasing the CPO content resulted in increased viscosity at 200 °C, while the PLA/CPO samples showed microstructural changes from crystalline to amorphous. The mechanical strength and ductility of the composite filaments decreased except for the 6% CPO filament. Due to its acceptable surface morphology and strength, the PLA/CPO filament with 6% CPO was selected for printability testing. The 3D-printed sample of a bone scaffold exhibited good printing quality, demonstrating the potential of the PLA/CPO filament as an improved biocompatible filament for FDM 3D printing.

KeywordsFDM filaments; Composite filaments; Polylactic acid; Calcium peroxide; 3D printing; Biomedical filament
Year2023
JournalPolymers
Journal citation15 (9), p. 2229
PublisherMDPI
ISSN 2073-4360
Digital Object Identifier (DOI)https://doi.org/10.3390/polym15092229
Official URLhttps://www.mdpi.com/2073-4360/15/9/2229
Publication dates
Print08 May 2023
Publication process dates
Accepted02 May 2023
Deposited10 May 2023
Publisher's version
License
Output statusPublished
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