Abstract
Glycol-modified polyethylene terephthalate (PETG) is a reliable middle ground between polylactic acid and acrylonitrile butadiene styrene due to its light weight, impact resistance, toughness, flexibility, and cost-effectiveness. However, during 3D printing, the filament form is prone to oozing and stringing. Herein, we optimized the PETG printability via g-code setting and printing parameter modification, and consideration of filament quality, build plate temperature and leveling, and printing design complexity. Printed PETGs were thermally and chemically annealed, and post-processing conditions including annealing time, temperature, and solvent use were investigated. Mechanical properties were evaluated in terms of print parameter changes and post-processing techniques. Graphical abstract: [Figure not available: see fulltext.].
| Original language | English |
|---|---|
| Pages (from-to) | 381-387 |
| Number of pages | 7 |
| Journal | MRS Communications |
| Volume | 12 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jun 2022 |
Funding
This work is supported by the University of Tennessee, Governor’s Chair Program. A portion of this work is also funded by the Department of Energy’s Kansas City National Security Campus, operated by Honeywell Federal Manufacturing & Technologies, LLC under contract number DE-NA0002839. Disclaimer: The Department of Energy’s Kansas City National Security Campus is operated and managed by Honeywell Federal Manufacturing & Technologies, LLC under contract number DE-NA0002839. We are also thankful for the financial support of the Center for Materials Processing at the University of Tennessee (Knoxville), and to Reagan Newman, Jason Chung, and Zane Smith for their assistance.
| Funders | Funder number |
|---|---|
| Zane Smith | |
| U.S. Department of Energy | DE-NA0002839 |
| University of Tennessee |
Keywords
- 3D printing
- Additive manufacturing
- Annealing
- Polymer
