Nanofiller Dispersion, Morphology, Mechanical Behavior, and Electrical Properties of Nanostructured Styrene-Butadiene-Based Triblock Copolymer/CNT Composites
Abstract
:1. Introduction
2. Experimental
2.1. Materials
2.2. Melt Mixing of S-SB-S/MWCNT Composites
2.3. Morphological Characterization
2.4. Dynamic Mechanical Analysis.
2.5. Evaluation of Electrical and Mechanical Properties
3. Results and Discussion
3.1. Macrodispersion of MWCNTs
3.2. Block Copolymer Nanostructure and Phase Behaviour
3.3. Structure–Property Correlations (Electrical and Mechanical Properties)
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
Appendix A
References
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Block Composition | Mn (g/mol) | Mw/Mn | Total PS content (wt%) | PS1/PS-co-PB/PS2 (wt%) | S/B Ratio in the Random Copolymer Block |
---|---|---|---|---|---|
PS1/PS-co-PB/PS2 1 | 110 000 | 1.21 | 75 | 12/49/39 | 1:1 |
Sample. | MWCNT Content (wt%) | Melt Mixing Parameter | |
---|---|---|---|
Temperature (°C) | Screw Speed (rpm) | ||
LN3_A | - | 180 | 100 |
LN3_C | - | 200 | 100 |
LN3_D | - | 200 | 200 |
LN3_1_A | 1 | 180 | 100 |
LN3_1_B | 1 | 180 | 200 |
LN3_1_C | 1 | 200 | 100 |
LN3_1_D | 1 | 200 | 200 |
LN3_0.1_D | 0.1 | 200 | 200 |
LN3_0.3_D | 0.3 | 200 | 200 |
LN3_0.5_D | 0.5 | 200 | 200 |
Sample | MWCNT Content (wt%) | Long Period (nm) | Domain Size (nm) | |
---|---|---|---|---|
PS-rich Domain | PB-rich Domain | |||
LN3_A | - | 22.0 ± 5.7 | 12.8 ± 3.1 | 10.3 ± 2.8 |
LN3_C | - | 32.0 ± 4.2 | 17.7 ± 3.4 | 15.1 ± 2.4 |
LN3_D | - | 27.5 ± 7.3 | 17.7 ± 5.1 | 10.2 ± 3.1 |
LN3_1_A | 1 | 22.4 ± 4.4 | 11.1 ± 3.2 | 11.2 ± 3.8 |
LN3_1_B | 1 | 28.7 ± 4.5 | 14.1 ± 2.7 | 13.9 ± 3.5 |
LN3_1_C | 1 | 24.2 ± 4.4 | 12.4 ± 2.3 | 11.2 ± 3.1 |
LN3_1_D | 1 | 21.1 ± 6.0 | 10.6 ± 2.7 | 9.4 ± 3.1 |
LN3_0.1_D | 0.1 | 15.7 ± 2.3 | 9.1 ± 1.8 | 7.4 ± 2.0 |
LN3_0.3_D | 0.3 | 25.6 ± 4.0 | 10.8 ± 2.4 | 14.8 ± 2.9 |
LN3_0.5_D | 0.5 | 18.0 ± 2.1 | 8.4 ± 1.8 | 9.9 ± 1.6 |
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Staudinger, U.; Satapathy, B.K.; Jehnichen, D. Nanofiller Dispersion, Morphology, Mechanical Behavior, and Electrical Properties of Nanostructured Styrene-Butadiene-Based Triblock Copolymer/CNT Composites. Polymers 2019, 11, 1831. https://doi.org/10.3390/polym11111831
Staudinger U, Satapathy BK, Jehnichen D. Nanofiller Dispersion, Morphology, Mechanical Behavior, and Electrical Properties of Nanostructured Styrene-Butadiene-Based Triblock Copolymer/CNT Composites. Polymers. 2019; 11(11):1831. https://doi.org/10.3390/polym11111831
Chicago/Turabian StyleStaudinger, Ulrike, Bhabani K. Satapathy, and Dieter Jehnichen. 2019. "Nanofiller Dispersion, Morphology, Mechanical Behavior, and Electrical Properties of Nanostructured Styrene-Butadiene-Based Triblock Copolymer/CNT Composites" Polymers 11, no. 11: 1831. https://doi.org/10.3390/polym11111831