Leachable Poly(Trimethylene Carbonate)/CaCO3 Composites for Additive Manufacturing of Microporous Vascular Structures
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Synthesis and Functionalization of Three-Armed PTMC
2.3. Preparation and Characterization of PTMC-MA/CaCO3 Films
2.4. Leaching of CaCO3 Particles and Characterization of Microporous PTMC Films
2.5. Water Flux
2.6. Mechanical Properties
2.7. Additive Manufacturing of Microvascular Structures Using PTMC/CaCO3 Resin
2.8. Scanning Electron Microscopy (SEM) and Thermogravimetric Analysis (TGA)
3. Results and Discussion
3.1. Characterization of PTMC-MA, CaCO3 Particles and PTMC-MA/CaCO3 Composite Films
3.2. Characterization of Leached PTMC-MA/CaCO3 Composite Films
3.3. Water Permeability of the Microporous PTMC Films
3.4. Mechanical Properties of the Microporous PTMC Films
3.5. Structure Design, Resin Formulation and SLA
3.6. Characterization of the Branched Vascular PTMC Structures
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Component | Weight (g) | Content (%) |
---|---|---|
PTMC-MA | 46.5 | 22.1 |
CaCO3 | 78.7 | 37.4 |
Propylene carbonate | 85.0 | 40.5 |
TPO-L | 2.3 | 5 * |
Orasol Orange G | 0.07 | 0.15 * |
Sample Code | CaCO3 Loading, vol % | Gel Content, % |
---|---|---|
PTMC | 0 | 98.1 ± 0.3 |
PTMC/30 | 30 | 97.2 ± 1.1 |
PTMC/40 | 40 | 97.4 ± 0.7 |
PTMC/50 | 50 | 96.6 ± 0.6 |
PTMC/60 | 60 | 94.9 ± 2.1 |
Sample Code | Porosity, % Hydrated | Porosity, % Dry | Pore Size, μm |
---|---|---|---|
PTMC/30 | 33.2 ± 1.9 | 31.4 ± 2.2 | 0.49 ± 0.27 |
PTMC/40 | 43.1 ± 2.4 | 41.9 ± 1.4 | 0.50 ± 0.21 |
PTMC/50 | 57.3 ± 3.7 | 52.1 ± 4.3 | 0.45 ± 0.36 |
PTMC/60 | 71.7 ± 5.1 | 51.3 ± 3.9 | 0.46 ± 0.29 |
Hydrated | Dry | |||||
---|---|---|---|---|---|---|
Sample Code | Emod, MPa | Fmax, MPa | Elongation at Break, % | Emod, MPa | Fmax, MPa | Elongation at Break, % |
PTMC | 8.16 ± 0.43 | 4.81 ± 0.89 | 67.1 ± 10.9 | 9.07 ± 0.34 | 6.57 ± 0.14 | 83.6 ± 4.2 |
PTMC/30 | 3.52 ± 0.16 | 3.28 ± 0.72 | 89.6 ± 12.5 | 7.76 ± 0.15 | 5.76 ± 1.21 | 121.7 ± 12.1 |
PTMC/40 | 2.72 ± 0.14 | 2.79 ± 0.52 | 109.4 ± 11.7 | 6.95 ± 0.17 | 4.58 ± 1.79 | 131.5 ± 14.2 |
PTMC/50 | 1.13 ± 0.05 | 1.48 ± 0.21 | 103.5 ± 8.1 | 5.82 ± 0.18 | 2.70 ± 0.54 | 143.3 ± 24.1 |
PTMC/60 | 0.30 ± 0.06 | 0.54 ± 0.04 | 104.1 ± 10.2 | 6.13 ± 0.16 | 2.16 ± 0.11 | 86.8 ± 19.9 |
Non-Leached | Leached, Hydrated | Leached, Dry | |
---|---|---|---|
Inner diameter, μm | 480.2 ± 10.9 | 482 ± 10.2 | 416.3 ± 7.5 |
Wall thickness, μm | 162.5 ± 4.3 | 146.0 ± 6.1 | 90.1 ± 3.8 |
Pore size, μm | - | - | 0.40 ± 0.27 |
CaCO3 content, vol % | 50.2 ± 2.9 | - | - |
Porosity, % | - | 59 ± 3 | 35 ± 4 |
Water flux at 0.16 bar, mL/min·cm2 | - | 0.09 ± 0.02 | - |
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Guo, Z.; Grijpma, D.; Poot, A. Leachable Poly(Trimethylene Carbonate)/CaCO3 Composites for Additive Manufacturing of Microporous Vascular Structures. Materials 2020, 13, 3435. https://doi.org/10.3390/ma13153435
Guo Z, Grijpma D, Poot A. Leachable Poly(Trimethylene Carbonate)/CaCO3 Composites for Additive Manufacturing of Microporous Vascular Structures. Materials. 2020; 13(15):3435. https://doi.org/10.3390/ma13153435
Chicago/Turabian StyleGuo, Zhengchao, Dirk Grijpma, and André Poot. 2020. "Leachable Poly(Trimethylene Carbonate)/CaCO3 Composites for Additive Manufacturing of Microporous Vascular Structures" Materials 13, no. 15: 3435. https://doi.org/10.3390/ma13153435