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

и другие.

Polymers, Год журнала: 2024, Номер 16(24), С. 3549 - 3549

Опубликована: Дек. 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.

Язык: Английский

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

и другие.

Composites Part A Applied Science and Manufacturing, Год журнала: 2024, Номер unknown, С. 108700 - 108700

Опубликована: Дек. 1, 2024

Язык: Английский

Процитировано

4
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

и другие.

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

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

и другие.

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 162922 - 162922

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

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

Cuiqing Zhou,

Mushan Yuan,

Xiaochuang Di

и другие.

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162574 - 162574

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

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

и другие.

Materials Letters, Год журнала: 2025, Номер unknown, С. 138656 - 138656

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Multi-scale heterogeneous composite elastomer absorbers synergistically enhanced by CoNi nanospheres and carbon nanotubes DOI
Huixing Wang, Wei Chen, Tianyi Hang

и другие.

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 682, С. 11 - 21

Опубликована: Ноя. 27, 2024

Язык: Английский

Процитировано

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

и другие.

Polymers, Год журнала: 2024, Номер 16(24), С. 3549 - 3549

Опубликована: Дек. 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.

Язык: Английский

Процитировано

0