再生纤维素基三明治结构复合薄膜的电磁屏蔽性能

doi:10.11896/cldb.23100181

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Abstract Electromagnetic radiation pollution has become increasingly serious in the electronic, industrial, civil and military fields. High-performance electromagnetic interference (EMI) shielding films have recently become popular research topics. In this work, the sandwich-structured graphene (GE)/regenerated cellulose (RC)-Fe₃O₄/RC-GE/RC composite films were fabricated by immersed phase transformation and compression molding methods using RC as matrix, GE as conductive filler and nano Fe₃O₄ as magnetic filler. The influence of GE contents and the thicknesses on the EMI shielding properties of the composite films were studied, and their shielding mechanism was discussed. The results showed that the conductivity and EMI shielding effectiveness (SE) were enhanced by both the increase of GE content and the film thickness. The EMI SE of the composite films reached the maximum 24.7 dB at the GE content of 20% and the film thickness of 0.84 mm. Meanwhile, the tensile strength of the composite film was enhanced by the addition of GE, with a maximum value of 12.2 MPa. This study provides a feasible strategy to prepare cellulose-based composite films for electromagnetic shielding.

Key words： regenerated cellulose sandwich-structured composite film electromagnetic interference shielding graphene nano Fe₃O₄

Published: 25 January 2025 Online: 2025-01-21

CLC number:

TB332

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	Articles by authors
	ZHANG Ting
	WU Cuiling
	JI Binghan
	HAN Mengyao
	DU Xueyan

Cite this article:

ZHANG Ting,WU Cuiling,JI Binghan, et al. Electromagnetic Interference Shielding Properties of Regenerated Cellulose Matrix Composite Films with Sandwich Structure[J]. Materials Reports, 2025, 39(2): 23100181-6.

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https://www.mater-rep.com/EN/10.11896/cldb.23100181 OR https://www.mater-rep.com/EN/Y2025/V39/I2/23100181

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