Mechanical Performance of Corn Starch/Poly(Vinyl Alcohol) Composite Hydrogels Reinforced by Inorganic Nanoparticles and Cellulose Nanofibers
Abstract
:1. Introduction
2. Results and Discussion
2.1. Mechanical Properties of SiO2/CS/PVA/Borax, Clay/CS/PVA/Borax, and CNF/CS/PVA/Borax Composite Hydrogels
2.2. FT-IR Measurements
2.3. Synchrotron SAXS/WAXS Measurements
2.4. Self-Healing
2.5. Comparison of Mechanical Properties of SiO2/CS/PVA/Borax, Clay/CS/PVA/Borax, and CNF/CS/PVA/Borax Composite Hydrogels
3. Conclusions
4. Experimental Section
4.1. Materials
4.2. Preparation of Composite Hydrogels
4.3. Tensile Measurements
4.4. Fourier Transform Infrared Spectroscopy (FT-IR)
4.5. Synchrotron Simultaneous Small-Angle X-ray Scattering (SAXS)/Wide-Angle X-ray Scattering (WAXS) Measurement
4.6. Self-Healing
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Sample | Rave/Å | σsphere/Å | RHS/Å | ϕ | ξDB/Å |
---|---|---|---|---|---|
3 wt% SiO2/CS/PVA/borax | 32 ± 0.1 | 0.35 ± 0.002 | 40 ± 1.5 | 0.16 ± 0.007 | 349 ± 18 |
7 wt% SiO2/CS/PVA/borax | 32 ± 0.007 | 0.35 ± 0.0004 | 45 ± 0.8 | 0.22 ± 0.005 | 340 ± 17 |
Samples | E/kPa | Recovery (E)/% | εf | Recovery (εf) /% |
---|---|---|---|---|
CS/PVA/borax (uncut) | 25.7 ± 6.8 | - | 7.7 ± 2.4 | - |
CS/PVA/borax (self-healed gel) | 19.4 ± 3.2 | 75 | 7.0 ± 2.0 | 91 |
clay/CS/PVA/borax (uncut) | 37.5 ± 5.2 | - | 6.7 ± 0.3 | - |
clay/CS/PVA/borax (self-healed gel) | 30.3 ± 2.3 | 81 | 1.1 ± 0.4 | 17 |
SiO2/CS/PVA/borax (uncut) | 113 ± 17.9 | - | 4.2 ± 1.1 | - |
SiO2/CS/PVA/borax (self-healed gel) | 96.9 ± 14.0 | 86 | 3.7 ± 1.2 | 87 |
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Takeno, H.; Shikano, R.; Kikuchi, R. Mechanical Performance of Corn Starch/Poly(Vinyl Alcohol) Composite Hydrogels Reinforced by Inorganic Nanoparticles and Cellulose Nanofibers. Gels 2022, 8, 514. https://doi.org/10.3390/gels8080514
Takeno H, Shikano R, Kikuchi R. Mechanical Performance of Corn Starch/Poly(Vinyl Alcohol) Composite Hydrogels Reinforced by Inorganic Nanoparticles and Cellulose Nanofibers. Gels. 2022; 8(8):514. https://doi.org/10.3390/gels8080514
Chicago/Turabian StyleTakeno, Hiroyuki, Rina Shikano, and Rin Kikuchi. 2022. "Mechanical Performance of Corn Starch/Poly(Vinyl Alcohol) Composite Hydrogels Reinforced by Inorganic Nanoparticles and Cellulose Nanofibers" Gels 8, no. 8: 514. https://doi.org/10.3390/gels8080514