Electromagnetic Shielding and Flame Retardancy of Composite Films Constructed with Cellulose and Graphene Nanoplates
Abstract
:1. Introduction
2. Experimental Section
2.1. Materials
2.2. Fabrication of Composite Films
2.3. Characterization
3. Results and Discussion
3.1. Structure and General Properties
3.2. Electromagnetic Shielding Performance
3.3. Thermal and Antiflaming Performance
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Film Samples | F0 | F1 | F2 | F3 | F4 |
---|---|---|---|---|---|
Wet thickness (mm) | 1.78 | 1.81 | 1.81 | 1.88 | 1.93 |
Dry thickness (mm) | 0.04 | 0.06 | 0.09 | 0.13 | 0.17 |
Planar density (g/m2) | 46.2 | 64.9 | 104.1 | 133.7 | 161.2 |
Tensile strength (MPa) | 69.4 | 54.1 | 39.7 | 25.8 | 11.3 |
Elongation at break (%) | 5.4 | 4.3 | 3.7 | 2.7 | 2.9 |
Materials | Method | Frequency (GHz) | EMI SE (dB) | Specific SE (dB·cm2/g) | Reference |
---|---|---|---|---|---|
Lotus fiber/GE (1/2) film | Regeneration | 8.2–12.4 | 8.1 | - | [33] |
Cellulose/graphite (1/2) film | Regeneration | 1.5 | 17.4 | - | [27] |
Cellulose/GE (1/2) film | Regeneration | 1.5 | 22.3 | 1381.8 | This work |
Cellulose nanofiber/GE film | Vacuum filtration | 8.2–12.4 | 27.4 | 5700 | [31] |
Cellulose aerogel/GE film | Hot-pressing | 8.2–12.4 | 47.5 | 1384.2 | [26] |
Film Sample | F0 | F2 | F4 |
---|---|---|---|
TTI/TTO (s) | 5/10 | 10/14 | Unignited |
pkHRR (kW/m2) | 19.4 | 15.13 | 5.29 |
THR0–600 (MJ/m2) | 0.63 | 2.85 | 2.03 |
pkSPR (m2/s) | <0.01 | <0.01 | <0.01 |
TSP0–600 (m2) | <0.1 | <0.1 | <0.1 |
LOI (%) | 17 | 29 | 38 |
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Fan, Z.; Yu, Y.; Cheng, X.; Liu, R. Electromagnetic Shielding and Flame Retardancy of Composite Films Constructed with Cellulose and Graphene Nanoplates. Materials 2022, 15, 1088. https://doi.org/10.3390/ma15031088
Fan Z, Yu Y, Cheng X, Liu R. Electromagnetic Shielding and Flame Retardancy of Composite Films Constructed with Cellulose and Graphene Nanoplates. Materials. 2022; 15(3):1088. https://doi.org/10.3390/ma15031088
Chicago/Turabian StyleFan, Zuwei, Yuanyuan Yu, Xiaojie Cheng, and Rangtong Liu. 2022. "Electromagnetic Shielding and Flame Retardancy of Composite Films Constructed with Cellulose and Graphene Nanoplates" Materials 15, no. 3: 1088. https://doi.org/10.3390/ma15031088