Liquid metal-encapsulated spherical Al2O3/PVA aerogel composites for high-efficiency electromagnetic interference shielding and enhanced mechanical properties

doi:10.1016/j.mseb.2025.118062

IMR OpenIR

	Liquid metal-encapsulated spherical Al2O3/PVA aerogel composites for high-efficiency electromagnetic interference shielding and enhanced mechanical properties
	Chen, Yu 1; Luo, Zhou 2; Shi, Xinyu 2; Jiang, Yue 2; Zhang, Yang 3; Xu, Zhiguang 2
通讯作者	Jiang, Yue(yjiang@zjxu.edu.cn) ; Xu, Zhiguang(zhiguang.xu@zjxu.edu.cn)
	2025-04-01
发表期刊	MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
ISSN	0921-5107
卷号	314 页码:8
摘要	Liquid metal (LM) is a promising candidate for electromagnetic interference (EMI) shielding due to its exceptional electrical conductivity and ease of processing. However, the high surface tension of LM leads to poor compatibility with polymers, significantly hindering its application in EMI shielding. Here, Al2O3@LM/borax crosslinked PVA (Al2O3@LM/BCP) aerogel is prepared using mechanical grinding, melting crosslinking, and directional freeze-drying techniques. The core-shell structure of Al2O3@LM, prepared by mechanical grinding, effectively reduces the high surface tension of LM, enhancing compatibility with the PVA matrix. Due to its freeze-dried porous structure and superior LM conductivity, the Al2O3@LM/BCP composite aerogel exhibits outstanding electrical conductivity of 312.5 S/m, efficient electromagnetic interference shielding efficiency (EMI SE) of 80.9 dB, and an excellent SEA/SET ratio of 83.9 %. This work offers a straightforward strategy for developing EMI shielding aerogels with excellent mechanical properties for EMI protection applications.
关键词	Liquid metal Core-shell structure Electromagnetic interference shielding Aerogels Mechanical properties PVA matrix
资助者	National Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China
DOI	10.1016/j.mseb.2025.118062
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52003104] ; Zhejiang Provincial Natural Science Foundation of China[LY22E030007]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Condensed Matter
WOS记录号	WOS:001421416500001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/179962
专题	中国科学院金属研究所
通讯作者	Jiang, Yue; Xu, Zhiguang
作者单位	1.AECC Beijing Inst Aeronaut Mat, Beijing 100095, Peoples R China 2.Jiaxing Univ, Coll Biol Chem Sci & Engn, Jiaxing 314001, Zhejiang, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yu,Luo, Zhou,Shi, Xinyu,et al. Liquid metal-encapsulated spherical Al2O3/PVA aerogel composites for high-efficiency electromagnetic interference shielding and enhanced mechanical properties[J]. MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS,2025,314:8.
APA	Chen, Yu,Luo, Zhou,Shi, Xinyu,Jiang, Yue,Zhang, Yang,&Xu, Zhiguang.(2025).Liquid metal-encapsulated spherical Al2O3/PVA aerogel composites for high-efficiency electromagnetic interference shielding and enhanced mechanical properties.MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS,314,8.
MLA	Chen, Yu,et al."Liquid metal-encapsulated spherical Al2O3/PVA aerogel composites for high-efficiency electromagnetic interference shielding and enhanced mechanical properties".MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS 314(2025):8.