Development of Antimicrobial PLA Composites for Fused Filament Fabrication
Abstract
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.
- Authors:
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1766341
- Alternate Identifier(s):
- OSTI ID: 1804372
- Report Number(s):
- LA-UR-21-20929
Journal ID: ISSN 2073-4360; POLYCK; PII: polym13040580
- Grant/Contract Number:
- US Department of Energy’s National Nuclear Security Administration contract DE-AC52-06NA25396; 89233218CNA000001; AC52-06NA25396
- Resource Type:
- Published Article
- Journal Name:
- Polymers
- Additional Journal Information:
- Journal Name: Polymers Journal Volume: 13 Journal Issue: 4; Journal ID: ISSN 2073-4360
- Publisher:
- MDPI AG
- Country of Publication:
- Switzerland
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; fused filament fabrication; FFF; additive manufacturing; AM; 3D-printing; PLA; ZnO; TiO2; polymer composites; PEG
Citation Formats
Brounstein, Zachary, Yeager, Chris M., and Labouriau, Andrea. Development of Antimicrobial PLA Composites for Fused Filament Fabrication. Switzerland: N. p., 2021.
Web. doi:10.3390/polym13040580.
Brounstein, Zachary, Yeager, Chris M., & Labouriau, Andrea. Development of Antimicrobial PLA Composites for Fused Filament Fabrication. Switzerland. https://doi.org/10.3390/polym13040580
Brounstein, Zachary, Yeager, Chris M., and Labouriau, Andrea. Mon .
"Development of Antimicrobial PLA Composites for Fused Filament Fabrication". Switzerland. https://doi.org/10.3390/polym13040580.
@article{osti_1766341,
title = {Development of Antimicrobial PLA Composites for Fused Filament Fabrication},
author = {Brounstein, Zachary and Yeager, Chris M. and Labouriau, Andrea},
abstractNote = {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.},
doi = {10.3390/polym13040580},
journal = {Polymers},
number = 4,
volume = 13,
place = {Switzerland},
year = {Mon Feb 15 00:00:00 EST 2021},
month = {Mon Feb 15 00:00:00 EST 2021}
}
https://doi.org/10.3390/polym13040580
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