Electromagnetic interference shielding performance of waterborne polyurethane composites filled with silver nanoparticles deposited on functionalized graphene

Electromagnetic interference shielding properties and mechanisms of chemically reduced graphene aerogels

“…2). The observation was contradictory to the previous outcomes that higher electrical conductivity [1,12,38,44] or better connected network [13,[45][46][47] contributed to higher EMI SE. In our case, the amount of rGO within GA could be increased by increasing either the thickness of the GA or the initial GO concentration.…”

“…Electromagnetic interference (EMI) occurs when electronic devices are subject to EM radiation from unexpected sources at the same frequency ranges at which these devices operate [1,2]. This may cause the degradation of the electronic devices and posed serious threat to the work place's safety [3].…”

Composite Films of Waterborne Polyurethane and Few-Layer Graphene—Enhancing Barrier, Mechanical, and Electrical Properties

“…The modification of GO with isophore diidocyanate (IPDI) and octadecylamine (ODA) [23], titane coupling agent [24], 3-aminopropyl triethoxysilane (APTES) [25,26], and hydramines (MEA-monorthanolamine, DEA-diethanolamine and TEA-triethylamine) [27] has been reported to improve the compatibly with a WPU matrix. The applications of graphene (pristine, oxidized, or functionalized)/WPU composites as electromagnetic interference (EMI) shielding devices [28][29][30][31][32], textiles [33,34], anticorrosives [24,[35][36][37][38], and flame retardant coatings [39] have also been studied.…”

A self-assembled graphene/polyurethane sponge for excellent electromagnetic interference shielding performance

“…To resolve this problem many materials, especially exible and conductive materials such as carbon nanostructure-based composites, polymer/carbon composites and metal/polymer composites, have been studied in recent years. [12][13][14][15][16] As reported in the literature, carbon nanostructure-based composite materials have been researched due to their light weight, excellent electrical conductivity, resistance to corrosion, good exibility, ease of fabrication, and low cost. 17,18 Many polymer/carbon and polymer/metal composites also possess high electrical conductivity, large specic surface area, and high content of conductive llers, and therefore have the potential to show great EMI shielding effectiveness.…”

“…The fabrication of conductive graphene 3D structured polymer composites for EMI shielding has also gained more and more attention due to their intrinsic superconductivity and the elasticity of their 3D structure. 6,12,[23][24][25] In this work, we manufactured a 3D graphene structure using a self-assembly method in a porous commercial PU sponge. Such an integrated product can make use of the benets of both the graphene and PU sponge components.…”