Fabrication and Performance Regulation of Lightweight Porous Electromagnetic Absorbing Materials via CO2 Nucleation-Free Foaming of EP DOI Open Access
Tienan Dong, J.J. Quan,

Funing Huang

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(24), P. 3549 - 3549

Published: Dec. 19, 2024

In this study, CO2 reacted with a curing agent through nucleophilic addition to form ammonium salts, enabling the stable capture and internal release of CO2, which achieved gas-phase nucleation foaming. Additionally, introduction wave-absorbing agents improved absorption mechanism promoted uniform This nucleation-free foaming process relies on induced growth gas nuclei synergistic effect agents, effectively preventing uneven issues caused by traditional nucleating agents. Ultimately, lightweight epoxy foam absorbing material (LFAM) was developed. BET tests showed that 2.0 wt% carbon-based (LFAMs–A2) expanded material’s volume 4.6 times its original size, forming porous structure. VNA revealed LFAMs–A2 minimum reflection loss −13.25 dB an bandwidth 3.7 GHz in 12–18 range. The ferrite-based (LFAMs–C2) −26.83 at 16.6 5.3 GHz, nearly covering Ku band. DSC indicated maintained good thermal stability 150 °C. study provides new approach for coatings structural optimization, broad application potential 5G communications, microwave anechoic chambers, aerospace fields.

Language: Английский

Enhanced dry friction performance of MCMB@SiC-SiC composites via in-situ reaction-formed SiC shell layer structure. DOI
Zhipeng Xie, Jialin Bai,

Xiumin Yao

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

0
Co/C and MoS2 synergistically enhancing the electromagnetic absorption performance of silicon carbide fibers DOI
Zheyipei Ma, Zixiang Zhao, Chao Jiang

et al.

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162922 - 162922

Published: March 1, 2025

Language: Английский

Citations

0
Tunable 1 T-Phase MoS2/CNT reinforced carbon foams for enhanced low-frequency electromagnetic wave absorption DOI

Cuiqing Zhou,

Mushan Yuan,

Xiaochuang Di

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162574 - 162574

Published: April 1, 2025

Language: Английский

Citations

0
Synthesis and microwave absorption properties of Ta4HfC5 whiskers DOI
Wenjing Luo, Rong Li, Hongting Tang

et al.

Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 138656 - 138656

Published: April 1, 2025

Language: Английский

Citations

0
Interface engineering of Fe/Fe3C@C magnetic-carbon composites for superior microwave absorption DOI
Yihui Zhou, Jin Qian, Zhe Qiang

et al.

Composites Part A Applied Science and Manufacturing, Journal Year: 2024, Volume and Issue: unknown, P. 108700 - 108700

Published: Dec. 1, 2024

Language: Английский

Citations

2
Multi-scale heterogeneous composite elastomer absorbers synergistically enhanced by CoNi nanospheres and carbon nanotubes DOI
Huixing Wang, Wei Chen, Tianyi Hang

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 682, P. 11 - 21

Published: Nov. 27, 2024

Language: Английский

Citations

1
Fabrication and Performance Regulation of Lightweight Porous Electromagnetic Absorbing Materials via CO2 Nucleation-Free Foaming of EP DOI Open Access
Tienan Dong, J.J. Quan,

Funing Huang

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(24), P. 3549 - 3549

Published: Dec. 19, 2024

In this study, CO2 reacted with a curing agent through nucleophilic addition to form ammonium salts, enabling the stable capture and internal release of CO2, which achieved gas-phase nucleation foaming. Additionally, introduction wave-absorbing agents improved absorption mechanism promoted uniform This nucleation-free foaming process relies on induced growth gas nuclei synergistic effect agents, effectively preventing uneven issues caused by traditional nucleating agents. Ultimately, lightweight epoxy foam absorbing material (LFAM) was developed. BET tests showed that 2.0 wt% carbon-based (LFAMs–A2) expanded material’s volume 4.6 times its original size, forming porous structure. VNA revealed LFAMs–A2 minimum reflection loss −13.25 dB an bandwidth 3.7 GHz in 12–18 range. The ferrite-based (LFAMs–C2) −26.83 at 16.6 5.3 GHz, nearly covering Ku band. DSC indicated maintained good thermal stability 150 °C. study provides new approach for coatings structural optimization, broad application potential 5G communications, microwave anechoic chambers, aerospace fields.

Language: Английский

Citations

0