期刊
CARBOHYDRATE POLYMERS
卷 246, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2020.116663
关键词
Cellulose nanofibers; Sustainable aerogels; Polyaniline; Electromagnetic interference shielding; Microwave absorption; Heat dissipation
资金
- Ministry of Electronics and IT (MeitY)
- Digital India Corporation, New Delhi, India [PhD-MLA/4(58)/2015-16]
Electromagnetic (EM) pollution is ubiquitous and has soared to a great extent in the past few decades. The use of plant sourced cellulose nanofibers to fabricate sustainable and high performance electromagnetic shielding materials is foreseen as a green solution by the electronics industry to address this unseen pollutant. In this view, we report a facile and environmentally benign strategy to synthesize ultra-light and highly conductive aerogels derived from cellulose nanofibers (CNF) decorated with polyaniline (PANI) via a simple in-situ polymerization and subsequent freeze drying process devoid of any volatile organic solvents. The obtained conductive aerogels exhibited density as low as 0.01925 g/cc with a maximum EMI shielding value -32 dB in X band region. These porous shields demonstrated strong microwave absorption behavior (95 %) with minimal reflection (5 %) coupled with high specific EMI SE value similar to 1667 dB.cm(3).g(-1) which make these aerogels a potential candidate for use in telecommunication, military and defense applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据