Open Access
Polymer Testing, volume 132, pages 108390
Influences of printing parameters on mechanical properties of recycled PET and PETG using fused granular fabrication technique
Phan Quoc Khang Nguyen
1
,
Jojibabu Panta
1
,
Tosin Famakinwa
1
,
Chunhui Yang
1
,
Aziz Ahmed
2
,
Michael Stapleton
2
,
Michael J. Staplevan
2
,
Doug Sassaman
3
,
Samantha Snabes
3
,
Charlotte Craff
3
3
re:3D Inc., 1100 Hercules Ave #220, Houston, TX, 77058, United States
|
Publication type: Journal Article
Publication date: 2024-03-04
Organic Chemistry
Polymers and Plastics
Abstract
This research presents an investigation of the feasibility of recycled polyethylene terephthalate (rPET) and glycol-modified polyethylene terephthalate (rPETG) thermoplastics using the fused granular fabrication (FGF) 3D printing technique. It focuses on the effects of FGF printing parameters on the mechanical properties of rPET and rPETG printed parts using a Gigabot X 3D printer. The design of experiments (DOE) was first performed considering the main FGF 3D printing parameters such as layer thickness, infill density and number of contours. The experimental studies were then carried out to study the effects of printing parameters on the tensile properties based on the DOE. The effect of interlayer bonding of printed parts on the tensile properties was also evaluated using finite element-based multiscale modelling. Scanning electron microscopy (SEM) and Fourier transformation infrared (FTIR) spectroscopy were used to observe the fracture morphology and chemical structure of post-3D printing products. The tensile test results indicate that the highest tensile strength of 26.4 MPa was obtained for rPET when using a 1.1-mm layer thickness, a 70% infill density, and 3 contours, whereas, for rPETG, the maximum tensile strength of 44.8 MPa was attained with a 1.2-mm layer thickness, a 100% infill density, and 2 contours. FTIR analysis confirms no significant changes of characteristic peaks for PET in the printed products, suggesting that rPET and rPETG are viable materials for 3D printing. Thermal stability studies also reveal that the glass transition temperature and onset degradation temperatures are not significantly affected by the printing parameters. The study demonstrates the potential of rPET and rPETG as sustainable alternatives to virgin materials and provides insights into the optimal processing conditions for achieving high-quality 3D printed parts via the FGF technique.
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Nguyen P. Q. K. et al. Influences of printing parameters on mechanical properties of recycled PET and PETG using fused granular fabrication technique // Polymer Testing. 2024. Vol. 132. p. 108390.
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Nguyen P. Q. K., Panta J., Famakinwa T., Yang C., Ahmed A., Stapleton M., Staplevan M. J., Sassaman D., Snabes S., Craff C. Influences of printing parameters on mechanical properties of recycled PET and PETG using fused granular fabrication technique // Polymer Testing. 2024. Vol. 132. p. 108390.
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TY - JOUR
DO - 10.1016/j.polymertesting.2024.108390
UR - https://linkinghub.elsevier.com/retrieve/pii/S0142941824000679
TI - Influences of printing parameters on mechanical properties of recycled PET and PETG using fused granular fabrication technique
T2 - Polymer Testing
AU - Nguyen, Phan Quoc Khang
AU - Panta, Jojibabu
AU - Famakinwa, Tosin
AU - Yang, Chunhui
AU - Ahmed, Aziz
AU - Stapleton, Michael
AU - Sassaman, Doug
AU - Snabes, Samantha
AU - Craff, Charlotte
AU - Staplevan, Michael J.
PY - 2024
DA - 2024/03/04
PB - Elsevier
SP - 108390
VL - 132
SN - 0142-9418
ER -
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@article{2024_Nguyen,
author = {Phan Quoc Khang Nguyen and Jojibabu Panta and Tosin Famakinwa and Chunhui Yang and Aziz Ahmed and Michael Stapleton and Doug Sassaman and Samantha Snabes and Charlotte Craff and Michael J. Staplevan},
title = {Influences of printing parameters on mechanical properties of recycled PET and PETG using fused granular fabrication technique},
journal = {Polymer Testing},
year = {2024},
volume = {132},
publisher = {Elsevier},
month = {mar},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0142941824000679},
pages = {108390},
doi = {10.1016/j.polymertesting.2024.108390}
}