Dual synergistic effect of a carbon/metal hybrid network on the mechanical and electromagnetic interference shielding performance in self-assembly enhanced epoxy curing networks

2021 ◽  
Author(s):  
Qingsong Lian ◽  
Weijie Xu ◽  
Hongfeng Chen ◽  
Yan Li ◽  
Hongji Duan ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Network Structure ◽  
Self Assembly ◽  
Electromagnetic Interference ◽  
The Self ◽  
Hybrid Network ◽  
Conductive Network ◽  
Electromagnetic Interference Shielding ◽  
Epoxy Curing

Deposited 3D Ag@T-ZnO and intertwined 1D MWCNTs carbon/metal hybrid conductive network structure in the self-assembly enhanced epoxy curing network.

scholarly journals Interface Engineered Microcellular Magnetic Conductive Polyurethane Nanocomposite Foams for Electromagnetic Interference Shielding

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Guolong Sang ◽  
Pei Xu ◽  
Tong Yan ◽  
Vignesh Murugadoss ◽  
Nithesh Naik ◽  
...  
Keyword(s):  
Electromagnetic Interference ◽  
Magnetic Loss ◽  
Interfacial Polarization ◽  
Conductive Network ◽  
Shielding Effectiveness ◽  
Electromagnetic Interference Shielding ◽  
Multiple Reflections ◽  
Conduction Loss ◽  
Composite Foams ◽  
Emi Se

Abstract Lightweight microcellular polyurethane (TPU)/carbon nanotubes (CNTs)/ nickel-coated CNTs (Ni@CNTs)/polymerizable ionic liquid copolymer (PIL) composite foams are prepared by non-solvent induced phase separation (NIPS). CNTs and Ni@CNTs modified by PIL provide more heterogeneous nucleation sites and inhibit the aggregation and combination of microcellular structure. Compared with TPU/CNTs, the TPU/CNTs/PIL and TPU/CNTs/Ni@CNTs/PIL composite foams with smaller microcellular structures have a high electromagnetic interference shielding effectiveness (EMI SE). The evaporate time regulates the microcellular structure, improves the conductive network of composite foams and reduces the microcellular size, which strengthens the multiple reflections of electromagnetic wave. The TPU/10CNTs/10Ni@CNTs/PIL foam exhibits slightly higher SE values (69.9 dB) compared with TPU/20CNTs/PIL foam (53.3 dB). The highest specific EMI SE of TPU/20CNTs/PIL and TPU/10CNTs/10Ni@CNTs/PIL reaches up to 187.2 and 211.5 dB/(g cm−3), respectively. The polarization losses caused by interfacial polarization between TPU substrates and conductive fillers, conduction loss caused by conductive network of fillers and magnetic loss caused by Ni@CNT synergistically attenuate the microwave energy.

Flexible, conductive, porous, fibrillar polymer–gold nanocomposites with enhanced electromagnetic interference shielding and mechanical properties

2017 ◽  
Vol 5 (5) ◽  
pp. 1095-1105 ◽  
Author(s):  
Jun Li ◽  
Hu Liu ◽  
Jiang Guo ◽  
Zhen Hu ◽  
Zhijiang Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Gold Nanoparticles ◽  
Self Assembly ◽  
Electromagnetic Interference ◽  
Shielding Effectiveness ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Emi Shielding Effectiveness ◽  
Conductive Nanocomposites ◽  
Gold Nanocomposites

Flexible lightweight conductive nanocomposites prepared by self-assembly of gold nanoparticles on charged polymer nanofibers show enhanced EMI shielding effectiveness and mechanical properties.

scholarly journals The synergistic effect of a graphene nanoplate/Fe3O4@BaTiO3 hybrid and MWCNTs on enhancing broadband electromagnetic interference shielding performance

RSC Advances ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 2065-2071 ◽  
Author(s):  
Lun Jin ◽  
Xiaomin Zhao ◽  
Jianfeng Xu ◽  
Yanyu Luo ◽  
Danqing Chen ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Silicone Rubber ◽  
Electromagnetic Interference ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Methyl Vinyl ◽  
Solution Blending

In this work, methyl vinyl silicone rubber (VMQ) nanocomposites were prepared by solution blending VMQ, graphene nanoplate/Fe3O4@BaTiO3 hybrid (GFBT) and MWCNTs, aiming to improve the electromagnetic interference (EMI) shielding performance of VMQ.

Asymmetric conductive polymer composite foam for absorption dominated ultra-efficient electromagnetic interference shielding with extremely low reflection characteristics

2020 ◽  
Vol 8 (18) ◽  
pp. 9146-9159 ◽  
Author(s):  
Hongji Duan ◽  
Huixin Zhu ◽  
Jiefeng Gao ◽  
Ding-Xiang Yan ◽  
Kun Dai ◽  
...  
Keyword(s):  
Network Design ◽  
Polymer Composite ◽  
Electromagnetic Interference ◽  
Conductive Polymer ◽  
Conductive Network ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Composite Foam ◽  
Conductive Polymer Composite ◽  
Reflection Characteristics

An ultraefficient EMI shielding WPU composite foam with extremely low reflection is achieved via ingenious asymmetric conductive network design.

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