Polydopamine-Coated Paraffin Microcapsules as a Multifunctional Filler Enhancing Thermal and Mechanical Performance of a Flexible Epoxy Resin
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Sample Preparation
2.2.1. Modification of Microcapsules with PDA
2.2.2. Preparation of Epoxy-Based Composites
2.3. Experimental Techniques
3. Results and Discussion
3.1. Microstructural and Spectroscopic Properties
3.2. Thermal and Dynamic Mechanical Properties
3.3. Mechanical Properties
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Sample | Epoxy Resin (Base + Hardener) (wt %) | Neat or PDA-Modified Microcapsules (wt %) |
---|---|---|
EP | 100 | 0 |
EP-MC10 | 90 | 10 |
EP-MC10-PDA | 90 | 10 |
EP-MC20 | 80 | 20 |
EP-MC20-PDA | 80 | 20 |
EP-MC40 | 60 | 40 |
EP-MC40-PDA | 60 | 40 |
Sample | |||||||||
---|---|---|---|---|---|---|---|---|---|
MC | - | 44.7 | 227.7 | 100 | 29.0 | 224.2 | - | 44.4 | 226.1 |
MC-PDA | - | 45.7 | 221.1 | 100 | 29.3 | 220.8 | - | 45.5 | 220.9 |
EP | 11.1 | - | - | - | - | - | 9.3 | - | - |
EP-MC10 | 11.3 | 44.0 | 22.6 | 99.2 | 32.8 | 22.9 | 7.8 | 44.0 | 23.4 |
EP-MC10-PDA | 10.7 | 43.1 | 21.8 | 98.6 | 32.9 | 21.7 | 8.8 | 43.1 | 21.7 |
EP-MC20 | 7.5 | 44.6 | 46.6 | 102.2 | 32.6 | 46.5 | 8.2 | 44.5 | 46.1 |
EP-MC20-PDA | 11.1 | 44.2 | 44.0 | 99.6 | 31.8 | 43.8 | 9.9 | 44.0 | 43.8 |
EP-MC40 | 8.6 | 47.0 | 87.8 | 96.4 | 28.9 | 88.8 | 9.1 | 46.5 | 87.3 |
EP-MC40-PDA | 10.7 | 49.6 | 85.8 | 97.1 | 26.6 | 85.4 | 9.9 | 49.5 | 85.6 |
Sample | |||||
---|---|---|---|---|---|
MC | 118.4 | 164.0 | 241.2 | 421.2 | 0.12 |
MC-PDA | 140.4 | 180.9 | 209.0 | 428.7 | 3.81 |
EP | 107.7 | 147.0 | 172.0 | 323.3 | 0.39 |
EP-MC10 | 105.9 | 140.2 | 164.7 | 321.2 | 1.35 |
EP-MC10-PDA | 116.0 | 153.9 | 179.2 | 319.5 | 4.89 |
EP-MC20 | 101.4 | 136.9 | 159.6 | 323.4 | 3.60 |
EP-MC20-PDA | 101.9 | 141.5 | 167.1 | 321.4 | 3.85 |
EP-MC40 | 100.8 | 139.5 | 158.5 | 330.2 | 3.10 |
EP-MC40-PDA | 112.1 | 150.7 | 176.9 | 337.1 | 4.31 |
Sample | |||||
---|---|---|---|---|---|
EP | 1737 | 454.5 | 16.8 | 20.1 | 31.8 |
EP-MC10 | 1720 | 535.3 | 24.5 | 21.8 | 33.5 |
EP-MC10-PDA | 1490 | 514.2 | 24.8 | 22.0 | 33.5 |
EP-MC20 | 1859 | 527.7 | 34.5 | 20.8 | 31.4 |
EP-MC20-PDA | 1579 | 530.1 | 30.4 | 22.4 | 34.0 |
EP-MC40 | 2045 | 841.9 | 43.0 | 24.4 | 35.2 |
EP-MC40-PDA | 3300 | 1137.6 | 68.1 | 22.8 | 37.8 |
Sample | ||
---|---|---|
EP | 346 ± 13 | 0.996 |
EP-MC20 | 300 ± 10 | 0.997 |
EP-MC20-PDA | 331 ± 8 | 0.998 |
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Fredi, G.; Zimmerer, C.; Scheffler, C.; Pegoretti, A. Polydopamine-Coated Paraffin Microcapsules as a Multifunctional Filler Enhancing Thermal and Mechanical Performance of a Flexible Epoxy Resin. J. Compos. Sci. 2020, 4, 174. https://doi.org/10.3390/jcs4040174
Fredi G, Zimmerer C, Scheffler C, Pegoretti A. Polydopamine-Coated Paraffin Microcapsules as a Multifunctional Filler Enhancing Thermal and Mechanical Performance of a Flexible Epoxy Resin. Journal of Composites Science. 2020; 4(4):174. https://doi.org/10.3390/jcs4040174
Chicago/Turabian StyleFredi, Giulia, Cordelia Zimmerer, Christina Scheffler, and Alessandro Pegoretti. 2020. "Polydopamine-Coated Paraffin Microcapsules as a Multifunctional Filler Enhancing Thermal and Mechanical Performance of a Flexible Epoxy Resin" Journal of Composites Science 4, no. 4: 174. https://doi.org/10.3390/jcs4040174