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Flexible and Conductive Cellulose Composite Paper for Highly Efficient Electromagnetic Interference Shielding
Author(s) -
Zhang Fudong,
Ren Penggang,
Guo Han,
Zhang Zengping,
Guo Zhengzheng,
Dai Zhong,
Lu Zhenxia,
Jin Yanling,
Ren Fang
Publication year - 2021
Publication title -
advanced electronic materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.25
H-Index - 56
ISSN - 2199-160X
DOI - 10.1002/aelm.202100496
Subject(s) - materials science , electromagnetic shielding , electromagnetic interference , emi , composite material , electrical conductor , composite number , graphene , bending , coating , nanotechnology , electronic engineering , engineering
Developing highly efficient electromagnetic interference (EMI) shielding materials with outstanding mechanical properties are urgently desirable for portable device hardware and flexible electronic devices. Herein, a highly conductive and flexible silver nanowires/graphene nanosheets/cellulose (AgNWs/GNSs/cellulose) composite paper with particular three‐layered structures is fabricated via vacuum assisted filtered and coating method. The prepared composites exhibit excellent EMI shielding property due to the unique layered structure. By changing the order of the conductive layers, the overall shielding performance can be further improved. An outstanding EMI shielding effectiveness (SE) of 53.3 dB is achieved with a thickness of only 0.17 mm. The composites show prominent bending resistance, which is proved by 1000 times of repeated bending leading to no obvious changes in structure. Moreover, the prepared composites exhibit excellent mechanical properties. Therefore, it is expected that this work will open up a facile strategy for exploiting materials with excellent EMI shielding properties and mechanical performance.