TY - JOUR
T1 - Enhancing the electromagnetic interference shielding of epoxy resin composites with hierarchically structured MXene/graphene aerogel
AU - He, Zhongjie
AU - Zhang, Weirui
AU - Zhang, Jing
AU - Xie, Jinliang
AU - Su, Fangfang
AU - Li, Yuchen
AU - Yao, Dongdong
AU - Wang, Yudeng
AU - Zheng, Yaping
N1 - Publisher Copyright:
© Elsevier Ltd
PY - 2024/4/1
Y1 - 2024/4/1
N2 - Graphene aerogels (GAs) exhibits immense potential in the field of electromagnetic interference (EMI) shielding due to their ultralow density, inherent conductive network, and porous structure. However, the optimization of structure and conductivity of GAs remains a significant challenge. To address this issue, a double template method was utilized to regulate the structure of graphene aerogel, resulting in a well-ordered hierarchical architecture. Subsequently, MXene was deposited on the surface of GA-1 through an immersion method to enhance the conductivity. The as-prepared MXene/graphene composite aerogel (MGA-10) showed excellent compression properties with ultra-high specific stress of 9.6 kPa cm3 mg−1 at 80% strain. Besides, due to the unique structure, the GA-x/epoxy composite (GA-x/EP) demonstrated excellent EMI shielding performances of more than 45 dB in both the C-band and X-band. The increase in conductivity and the introduction of new interfaces caused by MXene deposition further improved the EMI properties of MGAs/EP. After 10 times of deposition, MGA-10/EP displayed an impressive EMI performance above 68 dB in both the C-band and X-band. Moreover, MGA-10/EP exhibited excellent photothermal conversion performance, making it highly suitable for applications such as anti-icing and deicing. This work provides a valuable idea for designing efficient EMI materials.
AB - Graphene aerogels (GAs) exhibits immense potential in the field of electromagnetic interference (EMI) shielding due to their ultralow density, inherent conductive network, and porous structure. However, the optimization of structure and conductivity of GAs remains a significant challenge. To address this issue, a double template method was utilized to regulate the structure of graphene aerogel, resulting in a well-ordered hierarchical architecture. Subsequently, MXene was deposited on the surface of GA-1 through an immersion method to enhance the conductivity. The as-prepared MXene/graphene composite aerogel (MGA-10) showed excellent compression properties with ultra-high specific stress of 9.6 kPa cm3 mg−1 at 80% strain. Besides, due to the unique structure, the GA-x/epoxy composite (GA-x/EP) demonstrated excellent EMI shielding performances of more than 45 dB in both the C-band and X-band. The increase in conductivity and the introduction of new interfaces caused by MXene deposition further improved the EMI properties of MGAs/EP. After 10 times of deposition, MGA-10/EP displayed an impressive EMI performance above 68 dB in both the C-band and X-band. Moreover, MGA-10/EP exhibited excellent photothermal conversion performance, making it highly suitable for applications such as anti-icing and deicing. This work provides a valuable idea for designing efficient EMI materials.
KW - EMI shielding
KW - Graphene aerogel
KW - Hierarchical structure
KW - MXene
UR - http://www.scopus.com/inward/record.url?scp=85185195115&partnerID=8YFLogxK
U2 - 10.1016/j.compositesb.2024.111230
DO - 10.1016/j.compositesb.2024.111230
M3 - 文章
AN - SCOPUS:85185195115
SN - 1359-8368
VL - 274
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
M1 - 111230
ER -