Enhancing Carbon Nanotube Yarns via Infiltration Filling with Polyacrylonitrile in Supercritical Carbon Dioxide
Abstract
:1. Introduction
2. Results and Discussions
2.1. The Effect of Polyacrylonitrile Solution Concentration and Infiltration Times on the CNT Yarn
2.2. Determination of the Optimal Process Conditions for Modifying CNT Yarn with Supercritical CO2 Fluid
2.3. Determination of the Optimal Process Conditions for Pre-Oxidation Treated CNT Yarn
2.4. Effects of Pre-Oxidation Treatment and Supercritical CO2 Fluid Modification on the Structure and Properties of CNT Yarns
3. Material and Methods
3.1. Materials
3.2. Sample Preparation and Methods
3.2.1. Solution Preparation and Infiltration Treatment:
3.2.2. Supercritical CO2 Fluid Treatment:
3.2.3. Pre-Oxidation Process:
3.3. Characterization
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Levels | Pressure (MPa) A | Temperature (°C) B | Tension (cN) C |
---|---|---|---|
1 | 8 | 100 | 1.23 |
2 | 10 | 150 | 4.06 |
3 | 12 | 200 | 8.40 |
Levels | A | B | C | Tensile Strength | Tensile Modulus |
---|---|---|---|---|---|
Factors | Pressure | Temperature | Tension | (MPa) | (MPa) |
experiment 1 | A1 | B1 | C1 | 179.07 | 5288.29 |
experiment 2 | A1 | B2 | C2 | 167.33 | 3309.49 |
experiment 3 | A1 | B3 | C3 | 138.00 | 4369.84 |
experiment 4 | A2 | B1 | C2 | 229.14 | 3600.85 |
experiment 5 | A2 | B2 | C3 | 277.50 | 5094.05 |
experiment 6 | A2 | B3 | C1 | 73.94 | 2741.65 |
experiment 7 | A3 | B1 | C3 | 131.82 | 3120.42 |
experiment 8 | A3 | B2 | C1 | 138.31 | 3882.46 |
experiment 9 | A3 | B3 | C2 | 171.47 | 5437.84 |
Mean intensity A | 161.47 | 180.01 | 130.44 | / | |
Mean intensity B | 193.53 | 194.38 | 189.31 | / | |
Mean intensity C | 147.20 | 127.80 | 182.44 | / | |
Intensity range | 46.33 | 66.58 | 58.87 | B > C > A | |
Mean modulus A | 4322.54 | 4003.19 | 3970.80 | ||
Mean modulus B | 3812.18 | 4095.33 | 4116.06 | ||
Mean modulus C | 4146.91 | 4183.11 | 4194.77 | ||
Modulus range | 510.36 | 179.92 | 223.97 | A > C > B |
Element | C (at%) | O (at%) | Si (at%) | Cl (at%) | Fe (at%) | Zr (at%) |
---|---|---|---|---|---|---|
C-CNT yarn | 84.44 | 15.56 | / | / | / | / |
S-CNT yarn | 82.66 | 15.99 | 0.20 | 0.38 | 0.62 | 0.15 |
Levels | A | B | C | Tensile Strength | Tensile Modulus |
---|---|---|---|---|---|
Factors | Temperature Segments | Tension | Time | (MPa) | (MPa) |
experiment 1 | A1 | B1 | C1 | 188.53 | 8489.45 |
experiment 2 | A1 | B2 | C2 | 192.35 | 8219.01 |
experiment 3 | A1 | B3 | C3 | 189.82 | 10,661.99 |
experiment 4 | A2 | B1 | C2 | 260.57 | 10,122.13 |
experiment 5 | A2 | B2 | C3 | 254.84 | 12,984.42 |
experiment 6 | A2 | B3 | C1 | 115.3 | 9323.62 |
experiment 7 | A3 | B1 | C3 | 113.4 | 7115.28 |
experiment 8 | A3 | B2 | C1 | 147.36 | 6762.83 |
experiment 9 | A3 | B3 | C2 | 98.78 | 6277.97 |
Mean intensity A | 190.23 | 187.50 | 150.40 | ||
Mean intensity B | 210.24 | 198.18 | 183.90 | ||
Mean intensity C | 119.85 | 134.63 | 186.02 | ||
Intensity range | 90.39 | 63.55 | 35.623 | A > B > C | |
Mean modulus A | 9123.48 | 8575.62 | 8191.97 | ||
Mean modulus B | 10,810.06 | 9322.09 | 8206.37 | ||
Mean modulus C | 6718.69 | 8754.53 | 10,253.90 | ||
Modulus range | 4091.36 | 746.47 | 2061.93 | A > C > B |
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Liu, B.; Hu, Z.; Sun, Z.; Yu, M. Enhancing Carbon Nanotube Yarns via Infiltration Filling with Polyacrylonitrile in Supercritical Carbon Dioxide. Molecules 2024, 29, 3404. https://doi.org/10.3390/molecules29143404
Liu B, Hu Z, Sun Z, Yu M. Enhancing Carbon Nanotube Yarns via Infiltration Filling with Polyacrylonitrile in Supercritical Carbon Dioxide. Molecules. 2024; 29(14):3404. https://doi.org/10.3390/molecules29143404
Chicago/Turabian StyleLiu, Baihua, Zhifeng Hu, Zeyu Sun, and Muhuo Yu. 2024. "Enhancing Carbon Nanotube Yarns via Infiltration Filling with Polyacrylonitrile in Supercritical Carbon Dioxide" Molecules 29, no. 14: 3404. https://doi.org/10.3390/molecules29143404