TY - JOUR
T1 - Enhanced wave-absorbing performances of silicone rubber composites by incorporating C-SnO2-MWCNT absorbent with ternary heterostructure
AU - Zhao, Jia
AU - Lu, Yuanjin
AU - Ye, Wenlong
AU - Wang, Lei
AU - Liu, Bei
AU - Lv, Shanshan
AU - Chen, Lixin
AU - Gu, Junwei
N1 - Publisher Copyright:
© 2019 Elsevier Ltd and Techna Group S.r.l.
PY - 2019/11
Y1 - 2019/11
N2 - SnO2 and amorphous carbon were simultaneously introduced onto the surface of multi-walled carbon nanotube (MWCNT) by a simple and 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 mass fraction 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 due to the synergistic effect of multiple interface & dipole polarization 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 °C, higher than that of neat silicone rubber (187.4 °C).
AB - SnO2 and amorphous carbon were simultaneously introduced onto the surface of multi-walled carbon nanotube (MWCNT) by a simple and 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 mass fraction 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 due to the synergistic effect of multiple interface & dipole polarization 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 °C, higher than that of neat silicone rubber (187.4 °C).
KW - C-SnO-MWCNT
KW - Silicone rubber
KW - Ternary heterostructure
KW - Wave-absorbing composites
UR - http://www.scopus.com/inward/record.url?scp=85068204623&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2019.06.302
DO - 10.1016/j.ceramint.2019.06.302
M3 - 文章
AN - SCOPUS:85068204623
SN - 0272-8842
VL - 45
SP - 20282
EP - 20289
JO - Ceramics International
JF - Ceramics International
IS - 16
ER -