Haihua Wu, Lei Xing, Yu Cai, Li Liu, Xueting Fan, Yongsheng Ye, Bo Li, Xiaoyong Tian. Effect of Graphene Content on Microwave Absorption Properties of Fused Deposited Composite Samples[J]. Laser & Optoelectronics Progress, 2020, 57(23): 231601
- Laser & Optoelectronics Progress
- Vol. 57, Issue 23, 231601 (2020)
Fig. 1. Variation of reflection loss of graphene/PLA composite samples with frequency
Fig. 2. Variation of complex dielectric constant of graphene/PLA composite samples with frequency. (a) Real part of complex dielectric constant; (b) imaginary part of complex dielectric constant
Fig. 3. Variation of conductivity of graphene/PLA composite samples with graphene content
Fig. 4. Variation of reflection loss of graphene/nano-Fe3O4/PLA composite samples with frequency
Fig. 5. Variation of complex dielectric constant of graphene/nano-Fe3O4/PLA composite samples with frequency. (a) Real part of complex dielectric constant; (b) imaginary part of complex dielectric constant
Fig. 6. Variation of complex permeability of graphene/nano-Fe3O4/PLA composite samples with frequency. (a) Real part of complex permeability; (b) imaginary part of complex permeability
Fig. 7. SEM cross-sectional images of pure PLA sample and graphene/PLA composite samples. (a) Pure PLA sample; (b) 5% graphene/PLA composite sample; (c) 6% graphene/PLA composite sample; (d) 7% graphene/PLA composite sample; (e) 8% graphene/PLA composite sample; (f) 9% graphene/PLA composite sample
Fig. 8. SEM cross-sectional images of graphene/nano-Fe3O4/PLA and 5% graphene/PLA composite sample. (a) 1% graphene/20% nano-Fe3O4/PLA composite sample; (b) 3% graphene/20% nano-Fe3O4/PLA composite sample; (c) 5% graphene/20% nano-Fe3O4/PLA composite sample; (d) 5% graphene/PLA composite sample
Fig. 9. Schematic of wave absorption mechanism
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