Enhanced Electromagnetic Interference Shielding via Magnetic Field–Induced Alignment and Asymmetric Structure Design in Polylactic Acid‐Based Conductive/Magnetic Multilayer Films DOI
Wei Wang, Bin Xie, Yi He

и другие.

Polymer Composites, Год журнала: 2025, Номер unknown

Опубликована: Июнь 2, 2025

ABSTRACT The advancement of lightweight and miniaturized electronic devices has intensified the need for efficient electromagnetic interference (EMI) shielding materials. However, traditional polymer composites often show restricted EMI effectiveness (SE) poor mechanical strength due to disorderly distribution magnetic nanoparticles, inappropriate concentration levels, flawed structural design. To address these challenges, a novel strategy was developed directionally align Fe 3 O 4 ‐loaded basalt fibers (BF@Fe ) within polylactic acid (PLA) matrix via field guidance, thereby significantly enhancing properties BF@Fe /PLA. Furthermore, an asymmetric multilayer architecture engineered integration conductive carbon nanotube/PLA (CNT/PLA) layer with /PLA layer, synergistically overall SE. /CNT/PLA ‐U (“U” signifies uniform processing) demonstrates total SE 52 dB minimal transmission coefficient in 18.0–26.5 GHz. Finite element simulations support experimental results confirm microstructure modulation. Additionally, 0.3 mm thick achieves superior performance, tensile elongation at break reaching 29.8 MPa 5.9%, outperforming unmodified This work presents synergistic approach combining structure engineering alignment, offering promising route toward next‐generation materials high‐frequency applications.

Язык: Английский

Broadband and High-Efficiency Electromagnetic Wave Absorption by Bi2Fe4O9/Fe3O4 Nanoflowers DOI
Qiuling Chen, Tianzhi Gao, Ying Ren

и другие.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2025, Номер unknown, С. 136684 - 136684

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Hydrothermal synthesis of carbon microsphere assemblies with high fractal dimension pores for enhanced low-frequency microwave absorption DOI
Yanjie Zhang, Donghai Ding,

Guoqing Xiao

и другие.

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0
Enhanced Electromagnetic Interference Shielding via Magnetic Field–Induced Alignment and Asymmetric Structure Design in Polylactic Acid‐Based Conductive/Magnetic Multilayer Films DOI
Wei Wang, Bin Xie, Yi He

и другие.

Polymer Composites, Год журнала: 2025, Номер unknown

Опубликована: Июнь 2, 2025

ABSTRACT The advancement of lightweight and miniaturized electronic devices has intensified the need for efficient electromagnetic interference (EMI) shielding materials. However, traditional polymer composites often show restricted EMI effectiveness (SE) poor mechanical strength due to disorderly distribution magnetic nanoparticles, inappropriate concentration levels, flawed structural design. To address these challenges, a novel strategy was developed directionally align Fe 3 O 4 ‐loaded basalt fibers (BF@Fe ) within polylactic acid (PLA) matrix via field guidance, thereby significantly enhancing properties BF@Fe /PLA. Furthermore, an asymmetric multilayer architecture engineered integration conductive carbon nanotube/PLA (CNT/PLA) layer with /PLA layer, synergistically overall SE. /CNT/PLA ‐U (“U” signifies uniform processing) demonstrates total SE 52 dB minimal transmission coefficient in 18.0–26.5 GHz. Finite element simulations support experimental results confirm microstructure modulation. Additionally, 0.3 mm thick achieves superior performance, tensile elongation at break reaching 29.8 MPa 5.9%, outperforming unmodified This work presents synergistic approach combining structure engineering alignment, offering promising route toward next‐generation materials high‐frequency applications.

Язык: Английский

Процитировано

0