A strategy to achieve high electromagnetic interference shielding and ultra low percolation in multiwall carbon nanotube–polycarbonate composites through selective localization of carbon nanotubes

RSC Advances ◽  
2014 ◽  
Vol 4 (16) ◽  
pp. 7979 ◽  
Author(s):  
Sandip Maiti ◽  
Supratim Suin ◽  
Nilesh K. Shrivastava ◽  
B. B. Khatua
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Electromagnetic Interference ◽  
Multiwall Carbon Nanotube ◽  
Electromagnetic Interference Shielding ◽  
Selective Localization ◽  
Multiwall Carbon

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 ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Gamma Radiation ◽  
Electromagnetic Interference ◽  
Radiation Stability ◽  
Multiwall Carbon Nanotube ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Silicone Foam ◽  
High Gamma ◽  
Multiwall Carbon

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

Outstanding electromagnetic interference shielding of silver nanowires: comparison with carbon nanotubes

RSC Advances ◽  
2015 ◽  
Vol 5 (70) ◽  
pp. 56590-56598 ◽  
Author(s):  
Mohammad Arjmand ◽  
Aref Abbasi Moud ◽  
Yan Li ◽  
Uttandaraman Sundararaj
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Electrical Properties ◽  
Electromagnetic Interference ◽  
Silver Nanowires ◽  
Silver Nanowire ◽  
Electromagnetic Interference Shielding ◽  
Commercial Carbon

Synthesized silver nanowire/polystyrene nanocomposites showed superior electrical properties to commercial carbon nanotube/polystyrene nanocomposites at high filler loadings. This was ascribed to the higher metallic nature of silver nanowires.

A strategy to achieve enhanced electromagnetic interference shielding at ultra-low concentration of multiwall carbon nanotubes in PαMSAN/PMMA blends in the presence of a random copolymer PS-r-PMMA

RSC Advances ◽  
2016 ◽  
Vol 6 (32) ◽  
pp. 26959-26966 ◽  
Author(s):  
Suryasarathi Bose ◽  
Maya Sharma ◽  
Avanish Bharati ◽  
Paula Moldenaers ◽  
Ruth Cardinaels
Keyword(s):  
Carbon Nanotubes ◽  
Electromagnetic Interference ◽  
Multiwall Carbon Nanotubes ◽  
Random Copolymer ◽  
Shielding Effectiveness ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Emi Shielding Effectiveness ◽  
Pmma Blends ◽  
Multiwall Carbon

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.

Thermal conductivity and flammability of multiwall carbon nanotube/polyurethane foam composites

2016 ◽  
Vol 53 (2) ◽  
pp. 215-230 ◽  
Author(s):  
JJ Espadas-Escalante ◽  
F Avilés ◽  
PI Gonzalez-Chi ◽  
AI Oliva
Keyword(s):  
Thermal Conductivity ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Polyurethane Foam ◽  
Fire Behavior ◽  
Multiwall Carbon Nanotubes ◽  
Propagation Speed ◽  
Interfacial Thermal Resistance ◽  
Multiwall Carbon Nanotube ◽  
Multiwall Carbon

The thermal conductivity and fire response of multiwall carbon nanotube/polyurethane foam composites are investigated for ∼45 kg/m3 foams with multiwall carbon nanotube concentrations of 0.1, 1, and 2 wt.%. The thermal conductivity of such nanocomposites shows a modest increase with increased multiwall carbon nanotube content, which is explained by a high value of interfacial thermal resistance, as predicted by existent thermal models. A strong correlation between multiwall carbon nanotube content, foam’s cellular morphology, and fire behavior was observed. The flame propagation speed increases with the addition of 0.1 wt.% multiwall carbon nanotubes and then reduces as the multiwall carbon nanotube content increases. The mass lost after flame extinction reduces with the addition of multiwall carbon nanotubes, suggesting an increased resistance to flame attack due the multiwall carbon nanotube presence.

Structure of Polymer – Multiwall Carbon Nanotube Composites

2012 ◽  
Vol 504-506 ◽  
pp. 1151-1156
Author(s):  
Andrea Adamne Major ◽  
Károly Belina
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Multiwall Carbon Nanotube ◽  
Nonisothermal Crystallization ◽  
Polypropylene Nanocomposites ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites ◽  
Multiwall Carbon ◽  
Concentration Series

In the last ten years carbon nanotube composites are in the focus of the researchers. Different composition of carbon nanotubes and polymers were produced by IDMX mixer. In the experiments polypropylene, polycarbonate and ABS polymers were used as matrix materials. Nanotube master batches were used to prepare different compositions. Concentration series were manufactured by the dynamic mixer. The prepared materials were characterised by scanning electron microscopy. The carbon nanotubes can be seen on the fractured surfaces. We did not find any sign of agglomerates in the materials. During the investigation of isothermal and nonisothermal crystallization of polypropylene nanocomposites it was shown that the carbon nanotube has nucleating effect on polypropylene. Mechanical properties were determined. It was found that the mechanical properties of the nanocomposites decreased. The flammability of the composites is significantly smaller than the original polymers. Polypropylene nanotube composites above 4% nanotube content were not dripping. It is most probable due to some kind of network structure of the material. We assume that the carbon nanotube creates a physical network in the polymers.

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