Vulcanization of Ti3C2T MXene/natural rubber composite films for enhanced electromagnetic interference shielding

2021 ◽  
Vol 546 ◽  
pp. 149143
Author(s):  
Yanqin Wang ◽  
Ruiting Liu ◽  
Jianfeng Zhang ◽  
Miao Miao ◽  
Xin Feng
Keyword(s):  
Natural Rubber ◽  
Electromagnetic Interference ◽  
Composite Films ◽  
Electromagnetic Interference Shielding ◽  
Rubber Composite

scholarly journals Constructing a Segregated Magnetic Graphene Network in Rubber Composites for Integrating Electromagnetic Interference Shielding Stability and Multi-Sensing Performance

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3277
Author(s):  
Jian Wang ◽  
Baohua Liu ◽  
Yu Cheng ◽  
Zhenwan Ma ◽  
Yanhu Zhan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Natural Rubber ◽  
Reduced Graphene Oxide ◽  
Electromagnetic Interference ◽  
Electromagnetic Interference Shielding ◽  
Cyclic Stretching ◽  
Reduced Graphene ◽  
Wearable Electronic ◽  
Emi Se ◽  
Sensing Performance

A flexible, wearable electronic device composed of magnetic iron oxide (Fe3O4)/reduced graphene oxide/natural rubber (MGNR) composites with a segregated network was prepared by electrostatic self-assembly, latex mixing, and in situ reduction. The segregated network offers the composites higher electrical conductivity and more reliable sensing properties. Moreover, the addi-tion of Fe3O4 provides the composites with better electromagnetic interference shielding effectiveness (EMI SE). The EMI shielding property of MGNR composites is more stable under tensile deformation and long-term cycling conditions and has a higher sensitivity to stretch strain compared with the same structure made from reduced graphene oxide/natural rubber (GNR) composites. The EMI SE value of MGNR composites reduces by no more than 2.9% under different tensile permanent deformation, cyclic stretching, and cyclic bending conditions, while that of GNR composites reduces by approximately 16% in the worst case. Additionally, the MGNR composites have a better sensing performance and can maintain stable signals, even in the case of cyclic stretching with a very small strain (0.05%). Furthermore, they can steadily monitor the changes in resistance signals in various human motions such as finger bending, wrist bending, speaking, smiling, and blinking, indicating that the MGNR composites can be used in future wearable electronic flexibility devices.

Sandwich composites of polyurethane reinforced with poly(3,4-ethylene dioxythiophene)-coated multiwalled carbon nanotubes with exceptional electromagnetic interference shielding properties

RSC Advances ◽  
2015 ◽  
Vol 5 (92) ◽  
pp. 75229-75238 ◽  
Author(s):  
M. Farukh ◽  
Ridham Dhawan ◽  
Bhanu P. Singh ◽  
S. K. Dhawan
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Decay Time ◽  
Electromagnetic Interference ◽  
Composite Films ◽  
Shielding Effectiveness ◽  
Electromagnetic Interference Shielding ◽  
Multiwalled Carbon ◽  
Shielding Properties ◽  
Ku Band

PEDOT/MWCNT/PU composite films were designed, which show a shielding effectiveness of ∼45 dB in the Ku-band and a static decay time of 0.2 s which can find applications for the control of EM pollution also as an ESD material for the encapsulation of electronic equipments.

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