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Development of Antimicrobial PLA Composites for Fused Filament Fabrication
| Content Provider | MDPI |
|---|---|
| Author | Brounstein, Zachary Yeager, Chris M. Labouriau, Andrea |
| Copyright Year | 2021 |
| Description | In addition to possessing the desirable properties of being a biodegradable and biocompatible polymer fabricated from renewable resources, poly (lactic acid) (PLA) has useful mechanical and thermal attributes that has enabled it to be one of the most widely-used plastics for medicine, manufacturing, and agriculture. Yet, PLA composites have not been heavily explored for use in 3D-printing applications, and the range of feasible materials for the technology is limited, which inhibits its potential growth and industry adoption. In this study, tunable, multifunctional antimicrobial PLA composite filaments for 3D-printing have been fabricated and tested via chemical, thermal, mechanical, and antimicrobial experiments. Thermally stable antimicrobial ceramics, ZnO and TiO2, were used as fillers up to 30 wt%, and poly (ethylene glycol) (PEG) was used as a plasticizer to tune the physical material properties. Results demonstrate that the PLA composite filaments exhibit the thermal phase behaviors and thermal stability suitable for 3D-printing. Additionally, PEG can be used to tune the mechanical properties while not affecting the antimicrobial efficacy that ZnO and TiO2 imbue. |
| Starting Page | 580 |
| e-ISSN | 20734360 |
| DOI | 10.3390/polym13040580 |
| Journal | Polymers |
| Issue Number | 4 |
| Volume Number | 13 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-02-15 |
| Access Restriction | Open |
| Subject Keyword | Polymers Manufacturing Engineering Fused Filament Fabrication Fff Additive Manufacturing 3d-printing Pla Zno Tio2 Polymer Composites Peg |
| Content Type | Text |
| Resource Type | Article |
