Chlorination Treatment of Meta-Aramid Fibrids and Its Effects on Mechanical Properties of Polytetramethylene Ether Glycol/Toluene Diisocyanate (PTMEG/TDI)-Based Polyurethane Composites
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Chlorination Treatment of MAF
2.3. Preparation of MAFC/PU Composites
2.4. Characterization
3. Results and Discussion
3.1. Surface Morphologies of MAF and MAFC
3.2. IR Analysis
3.3. Surface Chemical Composition of MAF and MAFC
3.4. Surface Wettability of MAF and MAFC
3.5. Mechanical Properties of PU Elastomer Composites
3.6. Morphologies of MAFC/PU Composites
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Sample Code | MAF/wt% | MAFC/wt% |
---|---|---|
PU | - | - |
PU-F-0.5 | 0.5 | - |
PU-F-1 | 1 | - |
PU-F-1.5 | 1.5 | - |
PU-FC-0.5 | - | 0.5 |
PU-FC-1 | - | 1 |
PU-FC-1.5 | - | 1.5 |
PU-FC-2 | - | 2 |
Samples | Chemical Composition [%] | Atomic Ratio | ||||
---|---|---|---|---|---|---|
C | N | O | Cl | O/C | N/C | |
MAF | 80.9 | 9.5 | 9.6 | 0 | 0.119 | 0.118 |
MAFC | 70.2 | 9.2 | 12.7 | 7.9 | 0.181 | 0.131 |
Samples | Contact Angle θ ± SD#(°) | Surface Free Energy (mJ/m2) | ||||
---|---|---|---|---|---|---|
Water | Ethylene Glycol | = + | ||||
MAF | 94.6 (1.4) | 72.5 (1.2) | 18.3 | 3.6 | 21.9 | |
MAFC | 51.2 (2.0) | 35.7 (2.0) | 8.8 | 40.3 | 49.1 |
Sample | Hardness/Shore A | Modulus at 100%/MPa | Modulus at 300%/MPa | Tensile Strength/MPa | Elongation at Break/% | Tear Strength/kN·m−1 | Rebound Rate/% |
---|---|---|---|---|---|---|---|
PU | 86(1) | 5.6(0.2) | 9.0(0.4) | 25.4(1.3) | 373(20) | 66.1(1.2) | 40(1) |
P-F-0.5 | 87(1) | 5.7(0.1) | 8.6(0.4) | 27.8(0.9) | 391(15) | 68.9(0.8) | 40(2) |
P-F-1 | 88(2) | 5.0(0.3) | 8.0(0.2) | 30.1(2.0) | 415(16) | 70.0 (1.1) | 39(1) |
P-F-1.5 | 85(1) | 5.8(0.4) | 8.8(0.6) | 28.6(1.8) | 412(21) | 68.1(2.0) | 38(1) |
P-FC-0.5 | 87(1) | 5.9(0.2) | 9.6(0.5) | 30.0(1.5) | 416(19) | 72.7(1.6) | 39(1) |
P-FC-1 | 88(1) | 6.0(0.3) | 10.1(0.4) | 33.1(2.1) | 387(22) | 75.4(2.0) | 38(1) |
P-FC-1.5 | 89(2) | 6.2(0.4) | 10.4(0.2) | 36.4(1.4) | 458(18) | 80.1(1.9) | 38(2) |
P-FC-2 | 88(1) | 6.2(0.3) | 10.5(0.3) | 34.8(1.9) | 485(20) | 78.1(2.3) | 37(1) |
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Lu, W.; Yi, Y.; Ning, C.; Ge, M.; S.M., J.A. Chlorination Treatment of Meta-Aramid Fibrids and Its Effects on Mechanical Properties of Polytetramethylene Ether Glycol/Toluene Diisocyanate (PTMEG/TDI)-Based Polyurethane Composites. Polymers 2019, 11, 1794. https://doi.org/10.3390/polym11111794
Lu W, Yi Y, Ning C, Ge M, S.M. JA. Chlorination Treatment of Meta-Aramid Fibrids and Its Effects on Mechanical Properties of Polytetramethylene Ether Glycol/Toluene Diisocyanate (PTMEG/TDI)-Based Polyurethane Composites. Polymers. 2019; 11(11):1794. https://doi.org/10.3390/polym11111794
Chicago/Turabian StyleLu, Wuyang, Yuhua Yi, Chunping Ning, Mingliang Ge, and Jahangir Alam S.M. 2019. "Chlorination Treatment of Meta-Aramid Fibrids and Its Effects on Mechanical Properties of Polytetramethylene Ether Glycol/Toluene Diisocyanate (PTMEG/TDI)-Based Polyurethane Composites" Polymers 11, no. 11: 1794. https://doi.org/10.3390/polym11111794