Preparation and Mechanism of Flame-Retardant Cotton Fabric with Phosphoramidate Siloxane Polymer through Multistep Coating
Abstract
:1. Introduction
2. Experimental
2.1. Reagents and Materials
2.2. Synthesis of Phosphorus/Nitrogen-Containing Siloxane Polymer (PDTSP)
2.3. Coating Procedure
2.4. Measurements and Characterizations
3. Results and Discussion
3.1. Structural Analysis of PDTSP
3.2. Preparation and Characterization of PDTSP-Coated Cotton Fabrics
3.3. Combustion Properties of PDTSP-Coated Cotton Fabrics
3.4. Char Residue Study
3.5. Thermal Stability
3.6. TG-IR Analysis of Volatile Pyrolysis Products
3.7. Cone Calorimetry
3.8. Washing Stability
3.9. Air Permeability, Whiteness, and Tensile Strength
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Samples | Add-Ons (%) | Elemental Composition (%) | ||||
---|---|---|---|---|---|---|
C | O | Si | P | N | ||
Control cotton | 0 | 64.37 | 35.63 | - | - | - |
Cotton-PDTSP-1T | 8.8 | 56.77 | 34.14 | 6.7 | 1.14 | 1.25 |
Cotton-PDTSP-2T | 13.8 | 55.72 | 30.39 | 10.38 | 1.24 | 2.26 |
Samples | Afterflame Time (s) | Afterglow Time (s) | Char Length (cm) | LOI (%) |
---|---|---|---|---|
Control cotton | 28.5 | 30.4 | - | 18.4 |
Cotton-PDTSP-1T | 5.1 | 0 | ≥30.0 | 24.2 |
Cotton-PDTSP-2T | 0 | 0 | 9.8 | 27.1 |
Samples | Elemental Composition (%) | ||||
---|---|---|---|---|---|
C | O | Si | P | N | |
Cotton-PDTSP-1T | 59.94 | 28.68 | 6.33 | 3.53 | 1.52 |
Cotton-PDTSP-2T | 58.14 | 29.44 | 6.47 | 3.25 | 2.7 |
Samples | TTI (s) | PHRR (kW/m2) | THR (MJ/m2) | Residue (%) | TSR (m2/m2) | Av-EHC (MJ/kg) |
---|---|---|---|---|---|---|
Control cotton | 17 | 233.80 | 6.51 | 1.43 | 20.19 | 15.54 |
Cotton-PDTSP-1T | 9 | 160.09 | 5.21 | 8.76 | 20.18 | 11.21 |
Cotton-PDTSP-2T | 10 | 132.89 | 4.36 | 16.09 | 20.87 | 9.81 |
Samples | Air Permeability (mm/s) | Whiteness Index (%) | Tensile Strength ~(N) | Breaking Elongation (%) | ||
---|---|---|---|---|---|---|
Wrap | Weft | Wrap | Weft | |||
Cotton-control | 407.2 ± 6.2 | 97.2 | 436.3 ± 12.3 | 357.5 ± 3.3 | 4.5 ± 0.1 | 25.8 ± 0.4 |
Cotton-PDTSP-2T | 302.9 ± 2.7 | 54.3 | 386.5 ± 10.8 | 278.2 ± 3.5 | 7.2 ± 0.1 | 27.7 ± 0.4 |
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Xu, D.; Wang, S.; Wang, Y.; Liu, Y.; Dong, C.; Jiang, Z.; Zhu, P. Preparation and Mechanism of Flame-Retardant Cotton Fabric with Phosphoramidate Siloxane Polymer through Multistep Coating. Polymers 2020, 12, 1538. https://doi.org/10.3390/polym12071538
Xu D, Wang S, Wang Y, Liu Y, Dong C, Jiang Z, Zhu P. Preparation and Mechanism of Flame-Retardant Cotton Fabric with Phosphoramidate Siloxane Polymer through Multistep Coating. Polymers. 2020; 12(7):1538. https://doi.org/10.3390/polym12071538
Chicago/Turabian StyleXu, Denghui, Shijie Wang, Yimin Wang, Yun Liu, Chaohong Dong, Zhiming Jiang, and Ping Zhu. 2020. "Preparation and Mechanism of Flame-Retardant Cotton Fabric with Phosphoramidate Siloxane Polymer through Multistep Coating" Polymers 12, no. 7: 1538. https://doi.org/10.3390/polym12071538