Piezoresponse, Mechanical, and Electrical Characteristics of Synthetic Spider Silk Nanofibers
Abstract
:1. Introduction
2. Materials and Methods
2.1. Chemicals Synthesis
2.2. Electrospinning Process
2.3. Characterization Procedures and Sensing Analysis
3. Results and Discussions
3.1. Characterization of Spider Silk Nanofiber Mats
3.2. Mechanical Vibration Sensing
3.3. Humidity Sensing through Mechanical Properties
3.4. Resistivity Measurements versus Humidity
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Load Resistance | 10 kΩ | 30 kΩ | 50 kΩ |
---|---|---|---|
d33 | 3.67 | 3.66 | 3.53 |
Mechanical Properties | Dry | RH = 45% | RH = 75% | RH = 85% | RH = 99% |
---|---|---|---|---|---|
Elastic Modulus (MPa) | 1.89 ± 0.30 | 4.32 ± 0.77 | 1.24 ± 0.32 | 0.97 ± 0.16 | 1.45 ± 0.23 |
Tensile strength (MPa) | 3.57 ± 0.5 | 4.47 ± 0.6 | 1.50 ± 0.25 | 1.34 ± 0.23 | 1.30 ± 0.18 |
Maximum strain (%) | 16.1 ± 4.2 | 35.88 ± 7.11 | 35.65 ± 3.58 | 40.90 ± 6.92 | 37.74 ± 3.52 |
Strength at break (MPa) | 11.13 ± 1.88 | 12.64 ± 2.13 | 13.93 ± 2.23 | 14.06 ± 3.1 | 15.46 ± 1.43 |
Energy of break (kJ/m2) | 24.67 ± 7.97 | 72.52 ± 9.67 | 59.8 ± 9.12 | 61.88 ± 8.31 | 66.11 ± 9.73 |
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Shehata, N.; Kandas, I.; Hassounah, I.; Sobolčiak, P.; Krupa, I.; Mrlik, M.; Popelka, A.; Steadman, J.; Lewis, R. Piezoresponse, Mechanical, and Electrical Characteristics of Synthetic Spider Silk Nanofibers. Nanomaterials 2018, 8, 585. https://doi.org/10.3390/nano8080585
Shehata N, Kandas I, Hassounah I, Sobolčiak P, Krupa I, Mrlik M, Popelka A, Steadman J, Lewis R. Piezoresponse, Mechanical, and Electrical Characteristics of Synthetic Spider Silk Nanofibers. Nanomaterials. 2018; 8(8):585. https://doi.org/10.3390/nano8080585
Chicago/Turabian StyleShehata, Nader, Ishac Kandas, Ibrahim Hassounah, Patrik Sobolčiak, Igor Krupa, Miroslav Mrlik, Anton Popelka, Jesse Steadman, and Randolph Lewis. 2018. "Piezoresponse, Mechanical, and Electrical Characteristics of Synthetic Spider Silk Nanofibers" Nanomaterials 8, no. 8: 585. https://doi.org/10.3390/nano8080585