Waste cotton Fabric/MXene composite aerogel with heat generation and insulation for efficient electromagnetic interference shielding

被引：47
作者：
Zhai, Jianyu [1 ,2 ]
Cui, Ce [1 ,2 ]
Li, Ang [1 ,2 ]
Guo, Ronghui [1 ,2 ]
Cheng, Cheng [3 ]
Ren, Erhui [1 ,2 ]
Xiao, Hongyan [1 ,2 ]
Zhou, Mi [1 ,2 ]
Zhang, Jinwei [1 ,2 ]
机构：
[1] Sichuan Univ, Coll Biomass Sci & Engn, Chengdu 610065, Peoples R China
[2] Sichuan Univ, Yibin Ind Technol Res Inst, Chengdu, Peoples R China
[3] Univ Leeds, Sch Chem & Proc Engn, Leeds, W Yorkshire, England
来源：
CERAMICS INTERNATIONAL | 2022年 / 48卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Waste cotton; MXene; Aerogel; Electromagnetic interference; Shielding; Multifunctional; ULTRATHIN; FILM; NETWORKS;
D O I：
10.1016/j.ceramint.2022.01.224
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Electromagnetic interference (EMI) shielding materials have become more and more indispensable due to serious electromagnetic-radiation pollution. Herein, waste cotton cellulose aerogels were prepared by dissolving waste cotton fabrics (WCF) in NaOH/urea aqueous solution, and MXene nanosheets were subsequently deposited on the cellulose aerogels by a facile dip coating method to obtain WCF/MXene composite aerogels. The WCF/MXene composite aerogels with highly porous network structure show remarkable electrical conductivity (8.2 omega/sq of surface resistance), high EMI shielding effectiveness (EMI SE) in the range of 2-18 GHz (39.3-48.1 dB). The WCF/MXene aerogel possesses high SSE and SSE/t of 677.94-829.74 dB cm(3) g(-1) and 3512.62-4299.17 dB cm(2) g(-1)& nbsp;199 & nbsp;C when 3 V positive voltage is applied on them. The WCF/MXene composite aerogels possess excellent electromagnetic shielding effectiveness, heat generation property and insulation, which can be potentially used as multifunctional materials for EMI shielding, electrical-heating and high temperature protection. , respectively (2-18 GHz). In addition, the heating temperature of WCF/MXene composite aerogels reaches
引用
收藏
页码：13464 / 13474
页数：11
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