Enhancing the Dyeability of Polyimide Fibers with the Assistance of Swelling Agents
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Dyeing of PI Fibers
2.3. Testing of PI Fibers
2.3.1. Thermal Analysis
2.3.2. Surface Morphology
2.3.3. Tensile Properties
2.3.4. Crystalline Analysis
2.3.5. Color Strength
2.3.6. Colorfastness to Washing of the Dyed PI Fibers
3. Results and Discussion
3.1. Effect of Swelling Agents on PI Fibers
3.2. Effect of Swelling Agents on the Dyeability of PI Fibers
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Sample | Temperature of Maximum Degradation Rate (°C) | Weight Loss at 350 °C (%) | |
---|---|---|---|
I | II | ||
Polyimide (PI) | None | 595.9 | 0.24 |
PI/N-methylformanilide (MFA) | 213.1 | 596.9 | 10.72 |
PI/Phenoxyisopropanol (PIP) | 209.6 | 595.2 | 11.36 |
PI/Acetophenone (AP) | 128.3 | 588.8 | 12.55 |
Yarn | Breaking Strength (cN/tex) | Breaking Elongation (%) |
---|---|---|
PI | 25.32 | 9.78 |
PI/MFA | 20.53 | 8.04 |
PI/PIP | 20.43 | 7.84 |
PI/AP | 21.16 | 9.41 |
Dye | Swelling Agents | Color Change | Color Stain | |||||
---|---|---|---|---|---|---|---|---|
Wool | Acrylic | Polyester | Polyamide | Cotton | Acetate | |||
DR 153 | MFA | 4–5 | 3 | 4–5 | 3–4 | 3 | 4 | 3 |
PIP | 4–5 | 3 | 3–4 | 2–3 | 2 | 3 | 2–3 | |
AP | 4–5 | 3–4 | 4 | 3 | 2–3 | 3–4 | 3 | |
DB 60 | MFA | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
PIP | 5 | 5 | 5 | 5 | 5 | 5 | 5 | |
AP | 5 | 5 | 5 | 5 | 4 | 5 | 5 | |
BR 46 | MFA | 5 | 5 | 5 | 5 | 5 | 3–4 | 5 |
PIP | 5 | 4–5 | 5 | 5 | 4–5 | 3 | 4–5 | |
AP | 4–5 | 4 | 4–5 | 4 | 4–5 | 3 | 4–5 | |
BB 41 | MFA | 5 | 5 | 5 | 5 | 4 | 5 | 4–5 |
PIP | 4–5 | 4 | 5 | 4 | 3 | 3 | 3 | |
AP | 5 | 4–5 | 5 | 4–5 | 3–4 | 3 | 3–4 |
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Shao, D.; Xu, C.; Wang, H.; Du, J. Enhancing the Dyeability of Polyimide Fibers with the Assistance of Swelling Agents. Materials 2019, 12, 347. https://doi.org/10.3390/ma12030347
Shao D, Xu C, Wang H, Du J. Enhancing the Dyeability of Polyimide Fibers with the Assistance of Swelling Agents. Materials. 2019; 12(3):347. https://doi.org/10.3390/ma12030347
Chicago/Turabian StyleShao, Dongyan, Changhai Xu, Hongbo Wang, and Jinmei Du. 2019. "Enhancing the Dyeability of Polyimide Fibers with the Assistance of Swelling Agents" Materials 12, no. 3: 347. https://doi.org/10.3390/ma12030347