Enhancement in Nanomechanical, Thermal, and Abrasion Properties of SiO2 Nanoparticle-Modified Epoxy Coatings
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
3.1. Field Emission Scanning Electron Microscopy (FE-SEM)
3.2. Thermogravimetric Analysis (TGA)
3.3. Mechanical Properties and Nanoindentation Test
3.4. Abrasion Resistance
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Sample | * Resin | Xylene (mL) | MIBK (mL) | SiO2 (wt.%) | Air Release | Silane | * Hardener |
---|---|---|---|---|---|---|---|
Epoxy | 83.34 | 10 | 10 | 0 | 1 | 2 | 16.66 |
SN-1 | 83.34 | 10 | 10 | 1 | 1 | 2 | 16.66 |
SN-3 | 83.34 | 10 | 10 | 3 | 1 | 2 | 16.66 |
SN-5 | 83.34 | 10 | 10 | 5 | 1 | 2 | 16.66 |
Sample | Nanoparticle | Elements Present | Weight Percentage |
---|---|---|---|
Epoxy | – | C, O | 78.94, 21.06 |
SN-1 | SiO2 | C, O, Si | 78.33, 20.90, 0.77 |
SN-3 | SiO2 | C, O, Si | 77.65, 20.80, 1.55 |
SN-5 | SiO2 | C, O, Si | 76.24, 21.41, 2.34 |
Sample | Td, 15% a (°C) | Td, 25% b (°C) | Td, 50% c (°C) | Td, 75% d (°C) |
---|---|---|---|---|
Epoxy | 335.74 | 367.26 | 410.20 | 431.78 |
SN-1 | 344.00 | 373.38 | 408.83 | 432.75 |
SN-3 | 340.42 | 373.48 | 416.31 | 440.75 |
SN-5 | 344.10 | 377.80 | 420.90 | 477.03 |
Sample | DFT (µm) | Pendulum Hardness | Impact (lb/in2) | Scratch (kg) |
---|---|---|---|---|
Epoxy | 70 ± 10 | 105 | 64 | 6 |
SN-1 | 70 ± 10 | 134 | 112 | 7 |
SN-3 | 70 ± 10 | 128 | 112 | 8.5 |
SN-5 | 70 ± 10 | 118 | 128 | 9 |
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Alam, M.A.; Abdus Samad, U.; Alam, M.; Anis, A.; Al-Zahrani, S.M. Enhancement in Nanomechanical, Thermal, and Abrasion Properties of SiO2 Nanoparticle-Modified Epoxy Coatings. Coatings 2020, 10, 310. https://doi.org/10.3390/coatings10040310
Alam MA, Abdus Samad U, Alam M, Anis A, Al-Zahrani SM. Enhancement in Nanomechanical, Thermal, and Abrasion Properties of SiO2 Nanoparticle-Modified Epoxy Coatings. Coatings. 2020; 10(4):310. https://doi.org/10.3390/coatings10040310
Chicago/Turabian StyleAlam, Mohammad Asif, Ubair Abdus Samad, Manawwer Alam, Arfat Anis, and Saeed M. Al-Zahrani. 2020. "Enhancement in Nanomechanical, Thermal, and Abrasion Properties of SiO2 Nanoparticle-Modified Epoxy Coatings" Coatings 10, no. 4: 310. https://doi.org/10.3390/coatings10040310