Ultra-stretchable and multifunctional wearable electronics for superior electromagnetic interference shielding, electrical therapy and biomotion monitoring

2021 ◽  
Author(s):  
Wei Zhai ◽  
Chunfeng Wang ◽  
Shuo Wang ◽  
Jiannan Li ◽  
Yi Zhao ◽  
...  
Keyword(s):  
Joule Heating ◽  
Electromagnetic Interference ◽  
Electromagnetic Shielding ◽  
Wearable Electronics ◽  
Electromagnetic Interference Shielding ◽  
Electrical Therapy

TAMF exhibits outstanding electromagnetic shielding, excellent Joule heating, high breathability and favorable mechanosensation performances.

Conductive polymer-based electro-conductive textile composites for electromagnetic interference shielding: A review

2016 ◽  
Vol 47 (8) ◽  
pp. 2228-2252 ◽  
Author(s):  
Subhankar Maity ◽  
Arobindo Chatterjee
Keyword(s):  
Electromagnetic Interference ◽  
Conductive Polymers ◽  
Conductive Polymer ◽  
Polymer Processing ◽  
Textile Composites ◽  
Electromagnetic Shielding ◽  
Electromagnetic Interference Shielding ◽  
Textile Materials ◽  
Electromagnetic Shield ◽  
Conductive Textile

This article reviews the preparation, development and characteristics of conductive polymer-based electro-conductive textile composites for electromagnetic interference shielding. Modification of ordinary textile materials in the form of electro-conductive composites makes them suitable for this purpose. Various metallic and non-metallic electro-conductive textiles have been explored here as the material for electromagnetic shielding. Different approaches of preparing textile electromagnetic shield have been described here. Recent advancements of application of conductive polymers in the field of textile electromagnetic shielding are described. Conductive polymer-coated textile materials showed superior electrical property as electromagnetic shield. Different methods of applications of conductive polymers onto textile surface are described here with their relative merits and demerits. Different conductive polymer-coated woven and nonwoven fabrics prepared by various researchers for electromagnetic shielding are taken into account. The effects of different process parameters of polymer processing on electromagnetic shielding are described.

Plasmolysis-inspired Yolk-Shell Hydrogel-core@Void@MXene-shell Microspheres with Strong Electromagnetic Interference Shielding Performance

2021 ◽  
Author(s):  
Chenxi Li ◽  
Xingxing Ni ◽  
Yang Lei ◽  
Shangyang Li ◽  
Bo You ◽  
...  
Keyword(s):  
Electromagnetic Interference ◽  
Electromagnetic Waves ◽  
Multilayered Structure ◽  
Electromagnetic Shielding ◽  
Electromagnetic Interference Shielding ◽  
Shielding Material

Benefiting from specific multilayered structure, yolk−shell microspheres with void spaces are considered as the promising electromagnetic shielding material which does well in enhancing the decay of electromagnetic waves. Commonly reported...

Preparation and properties of polyimide/Fe3O4 composite foams

2018 ◽  
Vol 47 (2) ◽  
pp. 173-179 ◽  
Author(s):  
Ling Weng ◽  
Ting Wang ◽  
Pei-Hai Ju ◽  
Li-Zhu Liu
Keyword(s):  
Electromagnetic Interference ◽  
Temperature Stability ◽  
Electromagnetic Shielding ◽  
Great Promise ◽  
Electromagnetic Interference Shielding ◽  
High Temperature Stability ◽  
Composite Foam ◽  
Content Type ◽  
Nanocomposite Foams ◽  
Composite Foams

Purpose This paper aims to develope the electromagnetic interference shielding materials with high performance. To develop advanced polymer-based electromagnetic interference shielding materials with rather high temperature stability, good processability and moderate mechanical properties, the authors chose the polyimide (PI) foam as matrix and ferriferrous oxide (Fe3O4) as fillers to prepare the composite foams with lightweight and rather good electromagnetic interference shielding performance. Design/methodology/approach Some polyimide nanocomposite foams with Fe3O4 as fillers have been prepared by in situ dispersion and foaming with pyromellitic dianhydride (PMDA) and isocyanate (PAPI) as raw materials and water as foaming agent. By varying the Fe3O4 contents, a series of PI/Fe3O4 nanocomposite foams with fine microstructures and high thermal stability were obtained. The structure and performances of nanocomposite foams were examined, and the effects of Fe3O4 on the microstructure and properties of composite foams were investigated. Findings This work demonstrates that PI/Fe3O4 foams could be fabricated by thermally treating the polyimide foam intermediates with Fe3O4 nanoparticles through a blending reaction of precursors. The final PI/Fe3O4 composite foams maintained the excellent thermal property and showed a super paramagnetic behaviour, which has a positive effect on the improvement of electromagnetic shielding performance. Research limitations/implications In this paper, the effects of Fe3O4 on the performances of PI/Fe3O4 composite foam were reported. It provided an effective methodology for the preparation of polymer/Fe3O4 nanocomposite foams, which hold great promise towards the potential application in the areas of electromagnetic shielding materials. Originality/value A series of PI/Fe3O4 composite foams with different contents of Fe3O4 were prepared by blending reaction of the precursors. The effects of Fe3O4 on the structures and properties of PI/Fe3O4 composite foam were discussed in detail.

scholarly journals Lightweight and flexible MXene/CNF/silver composite membranes with a brick-like structure and high-performance electromagnetic-interference shielding

RSC Advances ◽  
2019 ◽  
Vol 9 (51) ◽  
pp. 29636-29644 ◽  
Author(s):  
Wei Xin ◽  
Guo-Qiang Xi ◽  
Wen-Tao Cao ◽  
Chang Ma ◽  
Tong Liu ◽  
...  
Keyword(s):  
Electromagnetic Interference ◽  
High Performance ◽  
Composite Membranes ◽  
Electromagnetic Shielding ◽  
Electromagnetic Interference Shielding ◽  
Shielding Material ◽  
Silver Composite

Flexible and lightweight MXene/CNF/silver composite membranes are vacuum filtered to form a high electromagnetic shielding material with a brick-like structure. The membranes have an excellent electromagnetic shielding performance of 50.7 dB.

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