Electroless Ag-plated sponges by tunable deposition onto cellulose-derived templates for ultra-high electromagnetic interference shielding

被引：40
作者：
Wu, Li-Ping [1 ]
Li, Ying-Zhan [1 ]
Wang, Bi-Jia [1 ]
Mao, Zhi-Ping [1 ]
Xu, Hong [1 ]
Zhong, Yi [1 ]
Zhang, Lin-Ping [1 ]
Sui, Xiao-Feng [1 ]
机构：
[1] Donghua Univ, Coll Chem Chem Engn & Biotechnol, Minist Educ, Key Lab Sci & Technol Ecotext, Shanghai 201620, Peoples R China
来源：
MATERIALS & DESIGN | 2018年 / 159卷
基金：
国家重点研发计划;
关键词：
Cellulose-derived sponges; Electroless Ag plating; Electromagnetic interference shielding; NANOFIBRILLATED CELLULOSE; ELECTRICAL-CONDUCTIVITY; NANOCELLULOSE AEROGELS; SILVER NANOPARTICLES; SURFACE MODIFICATION; BACTERIAL CELLULOSE; GRAPHENE OXIDE; MELAMINE FOAM; COMPOSITE; FIBERS;
D O I：
10.1016/j.matdes.2018.08.037
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Environmental-friendly cellulose-derived sponges were employed as porous templates to achieve uniform Ag deposition via a facile and economical electroless plating method. SEM and BET results confirmed an Ag layer was deposited on cellulose composite sponges without damaging the porous structure. XPS and XRD analysis demonstrated substantial interactions between porous substrates and Ag particles. When utilized as electromagnetic interference (EMI) shielding materials, a 3.2 mm thick silver-plated sponge exhibited a total shielding effectiveness (SEtotal) value of as high as 120.85 dB in the frequency range of 10-1500 MHz when the plating time was 120 min. Moreover, the conductive sponges displayed absorption-dominant mechanism to alleviate secondary radiation, making them promising candidates as high EMI shielding materials. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：47 / 56
页数：10
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