New physical insights into the electromagnetic shielding efficiency in PVDF nanocomposites containing multiwall carbon nanotubes and magnetic nanoparticles

RSC Advances ◽  
2015 ◽  
Vol 5 (97) ◽  
pp. 79463-79472 ◽  
Author(s):  
Viraj Bhingardive ◽  
Satyam Suwas ◽  
Suryasarathi Bose
Keyword(s):  
Carbon Nanotubes ◽  
Particle Size ◽  
Magnetic Nanoparticles ◽  
Multiwall Carbon Nanotubes ◽  
Electromagnetic Shielding ◽  
Polymeric Nanocomposites ◽  
Multiwall Carbon

This work attempts to bring critical insights into the electromagnetic shielding efficiency in polymeric nanocomposites with respect to the particle size of magnetic nanoparticles added along with or without a conductive inclusion.

Microwave absorbers designed from PVDF/SAN blends containing multiwall carbon nanotubes anchored cobalt ferrite via a pyrene derivative

2015 ◽  
Vol 3 (23) ◽  
pp. 12413-12426 ◽  
Author(s):  
Sourav Biswas ◽  
Goutam Prasanna Kar ◽  
Suryasarathi Bose
Keyword(s):  
Carbon Nanotubes ◽  
Magnetic Nanoparticles ◽  
Polyvinylidene Fluoride ◽  
Cobalt Ferrite ◽  
Multiwall Carbon Nanotubes ◽  
Electromagnetic Shielding ◽  
Microwave Absorbers ◽  
Multiwall Carbon

Lightweight and flexible electromagnetic shielding materials were designed by selectively localizing multiwall carbon nanotubes (MWNTs) anchored magnetic nanoparticles in melt mixed co-continuous blends of polyvinylidene fluoride (PVDF) and poly(styrene-co-acrylonitrile) (SAN).

High Electromagnetic Shielding of a 2.5-Gbps Plastic Transceiver Module Using Dispersive Multiwall Carbon Nanotubes

2008 ◽  
Vol 26 (10) ◽  
pp. 1256-1262 ◽  
Author(s):  
Chia-Ming Chang ◽  
Jin-Chen Chiu ◽  
Yi-Fen Lan ◽  
Jhe-Wei Lin ◽  
Chao-Yung Yeh ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwall Carbon Nanotubes ◽  
Electromagnetic Shielding ◽  
Transceiver Module ◽  
Multiwall Carbon

Simultaneous enhancement in mechanical strength, electrical conductivity, and electromagnetic shielding properties in PVDF–ABS blends containing PMMA wrapped multiwall carbon nanotubes

2015 ◽  
Vol 17 (22) ◽  
pp. 14856-14865 ◽  
Author(s):  
Goutam Prasanna Kar ◽  
Sourav Biswas ◽  
Suryasarathi Bose
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Mechanical Strength ◽  
Multiwall Carbon Nanotubes ◽  
Electromagnetic Shielding ◽  
Unique Approach ◽  
Shielding Properties ◽  
Multiwall Carbon

A unique approach was adopted to drive the multiwall carbon nanotubes (MWNTs) to the interface of immiscible PVDF–ABS blends by wrapping the nanotubes with a mutually miscible homopolymer (PMMA).

Effect of primary particle size on colloidal stability of multiwall carbon nanotubes

2013 ◽  
Vol 68 (10) ◽  
pp. 2249-2256 ◽  
Author(s):  
Liwen Zhang ◽  
Zhengwei Pan ◽  
Qingguo Huang
Keyword(s):  
Carbon Nanotubes ◽  
Particle Size ◽  
Colloidal Stability ◽  
Primary Particle ◽  
Multiwall Carbon Nanotubes ◽  
Environmental Behaviors ◽  
Toxicological Effects ◽  
Potential Applications ◽  
Aqueous Conditions ◽  
Multiwall Carbon

Multiwall carbon nanotubes (MWCNTs) are one type of nanoparticles that have various special properties and potential applications. Due to their increasing production and potential toxicological effects, the environmental behavior and transport of MWCNTs have become important research topics. Particle size is one of the important properties of nanoparticles, yet its effects on MWCNT environmental behaviors have not been fully investigated. In this study, we tested how the length of MWCNTs influenced their settling in the presence of Na+ and/or natural organic matter (NOM), and postulated the governing mechanisms. The results showed that when adding Na+ the shorter MWCNTs exhibited preferential aggregation and settling. One possible reason could be that shorter MWCNTs possess larger specific surface area and consequently stronger attraction forces. However, NOM strongly mitigated such aggregation, and helps to disperse MWCNTs regardless of their length and aqueous conditions.

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