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DOE OSTI · 1909122

On the optimized 3D printing and post-processing of PETG materials

Holcomb, Gillian·Caldona, Eugene B.·Cheng, Xiang·Advincula, Rigoberto C.
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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. In this study, 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.

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36 MATERIALS SCIENCE3D printingadditive manufacturingannealingpolymer

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Holcomb, Gillian, Caldona, Eugene B., Cheng, Xiang, Advincula, Rigoberto C.. 2022-05-12. On the optimized 3D printing and post-processing of PETG materials. https://doi.org/10.1557/s43579-022-00188-3

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