J. Mater. Sci. Technol. ›› 2018, Vol. 34 ›› Issue (12): 2415-2423.DOI: 10.1016/j.jmst.2018.06.007
Special Issue: Graphene 2018; Nanomaterials 2018; Composites 2018
• Orginal Article • Previous Articles Next Articles
Ying Gongab, Wenying Zhouab*(), Zijun Wangac, Li Xua, Yujia Koua, Huiwu Caia, Xiangrong Liua, Qingguo Chenb**(), Zhi-Min Dangad*()
Received:
2018-02-26
Revised:
2018-03-25
Accepted:
2018-05-15
Online:
2018-12-20
Published:
2018-11-15
Contact:
Zhou Wenying,Chen Qingguo,Dang Zhi-Min
Ying Gong, Wenying Zhou, Zijun Wang, Li Xu, Yujia Kou, Huiwu Cai, Xiangrong Liu, Qingguo Chen, Zhi-Min Dang. Towards suppressing dielectric loss of GO/PVDF nanocomposites with TA-Fe coordination complexes as an interface layer[J]. J. Mater. Sci. Technol., 2018, 34(12): 2415-2423.
Fig. 1. (a) FT-IR spectra of TA, GO@TA-Fe and GO nanoparticles, (b) Raman spectroscope patterns of GO and GO@TA-Fe nanoparticles, and (c) Micrograph and elemental analysis image of GO@TA-Fe.
Fig. 4. Frequency dependence of (a) dielectric constant and (b) dielectric loss tangent of GO@TA-Fe/PVDF composites with different mole ratios of Fe and TA (The filler loading for the composites is 1?wt%).
Fig. 5. Frequency dependence of (a) dielectric constant and (b) dielectric loss tangent of GO@TA-Fe/PVDF composites with different concentration of TA-Fe (The filler loading for the composites is 2?wt%).
Fig. 6. Frequency dependence of (a) dielectric constant and (b) dielectric loss tangent of GO@TA-Fe/PVDF composites with different reaction time (The filler loading for the composites is 2?wt%).
Fig. 7. Frequency dependence of dielectric constant, dielectric loss tangent and electrical conductivity of GO@TA-Fe/PVDF (a, c, e) and GO/PVDF composites (b, d, f) with different GO@TA-Fe filler loading (The reaction time and TA-Fe concentration is 1?h and 0.5?g/L, respectively).
Fig. 8. Temperature dependence of (a) dielectric constant (b) dielectric loss tangent, and (c) the imaginary part of electric modulus of 1?wt% GO@TA-Fe/PVDF composites with varied frequency (The insets in three figures are dielectric properties for the 1?wt% GO/PVDF composites).
System | Dk/tanδ | Reference |
---|---|---|
GO@TA-Fe/PVDF (1?wt%) | 110/0.12 (1?kHz) | This work |
GO/PVDF (0.1?wt%) | 35/0.64 (1?kHz) | [ |
rGO/PVDF (0.1?wt%) | 52/1.12 (1?kHz) | [ |
BT-GO/PVDF (10?vol%) | 20.8/0.047 (1?kHz) | [ |
BT-rGO/PVDF (10?vol%) | 18.3/0.044 (1?kHz) | [ |
rGO-PVA/PVDF (2.2?vol%) | 50/0.5 (1?kHz) | [ |
DGEBA-rGO/EP (1?wt%) | 32/0.08 (1?kHz) | [ |
Ag-GO/P(VDF-HFP) (3?vol%) | 65/<0.1 (100?Hz) | [ |
rGO/TiO2/PVDF (10.9?vol%) | 1741/0.39 (100?Hz) | [ |
GPTS-SiO2@GO/PI (20?wt%) | 79/0.25 (40?Hz) | [ |
Table 1 Comparison of different dielectric properties of GO/polymers.
System | Dk/tanδ | Reference |
---|---|---|
GO@TA-Fe/PVDF (1?wt%) | 110/0.12 (1?kHz) | This work |
GO/PVDF (0.1?wt%) | 35/0.64 (1?kHz) | [ |
rGO/PVDF (0.1?wt%) | 52/1.12 (1?kHz) | [ |
BT-GO/PVDF (10?vol%) | 20.8/0.047 (1?kHz) | [ |
BT-rGO/PVDF (10?vol%) | 18.3/0.044 (1?kHz) | [ |
rGO-PVA/PVDF (2.2?vol%) | 50/0.5 (1?kHz) | [ |
DGEBA-rGO/EP (1?wt%) | 32/0.08 (1?kHz) | [ |
Ag-GO/P(VDF-HFP) (3?vol%) | 65/<0.1 (100?Hz) | [ |
rGO/TiO2/PVDF (10.9?vol%) | 1741/0.39 (100?Hz) | [ |
GPTS-SiO2@GO/PI (20?wt%) | 79/0.25 (40?Hz) | [ |
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