CNT@PDMS/NW composite materials with superior electromagnetic shielding

被引：4

作者：

Zhou, Zi-Jing ^{[1
]}

Wang, Zhen-Xing ^{[1
]}

Han, Xiao-shuai ^{[2
]}

Pu, Jun-Wen ^{[1
]}

机构：

[1] Beijing Forestry Univ, Coll Mat Sci & Technol, Beijing Key Lab Lignocellulos Chem, Beijing 100083, Peoples R China

[2] Nanjing Forestry Univ, Coll Mat Sci & Engn, Int Innovat Ctr Forest Chem & Mat, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat F, Nanjing 210037, Peoples R China

来源：

HOLZFORSCHUNG | 2022年 / 76卷 / 03期

关键词：

carbon nanotube; electromagnetic wave shielding; natural wood; three-dimensional foam; water resistance; HIGH-PERFORMANCE; GRAPHENE; POLYMERIZATION;

D O I：

10.1515/hf-2021-0132

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Lightweight materials with high electrical conductivity and hydrophobic mechanical properties are ideal materials for electromagnetic interference (EMI) shielding. Herein, the conductive composites with great EMI shielding effectiveness (SE) were successfully obtained by introducing multi-walled carbon nanotube (CNT) and polydimethylsiloxane (PDMS) based on the original structure of natural wood (NW). CNT@PDMS/NW composites were prepared via vacuum-pulse impregnation method and characterized by Fourier transform infrared (FTIR), scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) patterns, hydrophobicity analysis, and EMI shielding performance. As demonstrated, CNT nanosheets were successfully inserted into wood matrices, and hydrogen bonding between CNT nanosheets and cellulose nanofibers induced the fabrication of CNT@PDMS/NW composites. CNT@PDMS/NW composites exhibited excellent EMI SE values of 25.2 dB at the X-band frequency.

引用

页码：299 / 304

页数：6

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