[Ceramics International]Enhanced wave-absorbing performances of silicone rubber composites by incorporating C-SnO2-MWCNT absorbent with ternary heterostructure
writer：ia Zhao, Yuanjin Lu, Wenlong Ye, Lei Wang, Bei Liu, Shanshan Lv, Lixin Chen* and Junwei Gu*
keywords：SnO2 , multi-walled carbon nanotube, silicone rubber
source：期刊
specific source：Ceramics International
Issue time：2019年
SnO2 and amorphous carbon were simultaneously introduced onto the surface of multi-walled carbon nanotube (MWCNT) by a simpleand green hydrothermal process followed by heat treatment, finally to obtain the C-SnO2-MWCNT absorbent with ternary heterostructure. Subsequently, the C-SnO2-MWCNT/silicone rubber wave-absorbing composites were prepared. XRD, Raman, XPS, SEM, TEM and TGA indicated the C-SnO2-MWCNT absorbent with ternary heterostructure was fabricated successfully. When the massfraction of C-SnO2-MWCNT was 30 wt% and the thickness was 2.65 mm, the minimum reflection loss (RLmin) and effective absorption bandwidth (EAB) of the C-SnO2-MWCNT/silicone rubber wave-absorbing composites could reach -53.5 dB and 3.16 GHz, respectively. Excellent wave-absorbing performance was dueto the synergistic effect of multiple interface & dipolepolarization and conduction loss. Furthermore, the corresponding heat resistance index (THRI) of the C-SnO2-MWCNT/silicone rubber wave-absorbing composites with 30 wt% C-SnO2-MWCNT reached 209.9 oC, higher than that of neat silicone rubber (187.4 oC).