scholarly journals Oxidized multiwall carbon nanotube/silicone foam composites with effective electromagnetic interference shielding and high gamma radiation stability

RSC Advances ◽  
2018 ◽  
Vol 8 (43) ◽  
pp. 24236-24242 ◽  
Author(s):  
Furong Huang ◽  
Yimeng Wang ◽  
Peiyu Wang ◽  
Hui-ling Ma ◽  
Xibang Chen ◽  
...  

The o-MWCNT/silicone foam composites exhibited effective EMI shielding, excellent mechanical strength and high gamma radiation stability.

RSC Advances ◽  
2016 ◽  
Vol 6 (32) ◽  
pp. 26959-26966 ◽  
Author(s):  
Suryasarathi Bose ◽  
Maya Sharma ◽  
Avanish Bharati ◽  
Paula Moldenaers ◽  
Ruth Cardinaels

Mediated by the PS-r-PMMA, the MWNTs were mostly localized at the interface and bridged the PMMA droplets. This strategy led to enhance EMI shielding effectiveness at 0.25 wt% MWNTs through multiple scattering from MWNT covered droplets.


Nanomaterials ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 238 ◽  
Author(s):  
Claudia Angélica Ramírez-Herrera ◽  
Homero Gonzalez ◽  
Felipe de la Torre ◽  
Laura Benitez ◽  
José Gerardo Cabañas-Moreno ◽  
...  

The demand for multifunctional requirements in aerospace, military, automobile, sports, and energy applications has encouraged the investigation of new composite materials. This study focuses on the development of multiwall carbon nanotube (MWCNT) filled polypropylene composites and carbon nanofiber composite mats. The developed systems were then used to prepare interlayered composites that exhibited improved electrical conductivity and electromagnetic interference (EMI) shielding efficiency. MWCNT-carbon nanofiber composite mats were developed by centrifugally spinning mixtures of MWCNT suspended in aqueous poly(vinyl alcohol) solutions. The developed nanofibers were then dehydrated under sulfuric acid vapors and then heat treated. Interlayered samples were fabricated using a nanoreinforced polypropylene composite as a matrix and then filled with carbon fiber composite mats. The in-plane and through-plane electrical conductivity of an eight-layered flexible carbon composite (0.65 mm thick) were shown to be 6.1 and 3.0 × 10−2 S·cm−1, respectively. The EMI shielding effectiveness at 900 MHz increased from 17 dB for the one-layered composite to 52 dB for the eight-layered composite. It was found that the reflection of the electromagnetic waves was the dominating mechanism for EMI shielding in the developed materials. This study opens up new opportunities for the fabrication of novel lightweight materials that are to be used in communication systems.


2017 ◽  
Vol 5 (11) ◽  
pp. 2807-2817 ◽  
Author(s):  
Kai Zhang ◽  
Hai-Ou Yu ◽  
Yu-Dong Shi ◽  
Yi-Fu Chen ◽  
Jian-Bing Zeng ◽  
...  

Morphological regulation induced by stereocomplex crystallites was used to design PLLA-based composites with enhanced electrical conductivity and EMI shielding.


2017 ◽  
Vol 5 (36) ◽  
pp. 9359-9369 ◽  
Author(s):  
Kai Zhang ◽  
Gen-Hui Li ◽  
La-Mei Feng ◽  
Ning Wang ◽  
Jiang Guo ◽  
...  

Segregated PLLA/MWCNTs nanocomposites were synthesized with high-performance EMI shielding.


2014 ◽  
Vol 5 (1) ◽  
pp. 31-38 ◽  
Author(s):  
Asaduz Zaman ◽  
Taslim Ur Rashid ◽  
Mubarak A. Khan ◽  
Mohammed Mizanur Rahman

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