scholarly journals The long-range π-conjugation between electron-rich species and multiwall carbon nanotubes influences the fluorescence lifetime and electromagnetic shielding

2020 ◽  
Vol 2 (10) ◽  
pp. 4464-4472
Author(s):  
Sourav Biswas ◽  
Sujit S. Panja ◽  
Suryasarathi Bose
Keyword(s):  
Carbon Nanotubes ◽  
Long Range ◽  
Fluorescence Lifetime ◽  
Electronic Structures ◽  
Multiwall Carbon Nanotubes ◽  
Electromagnetic Shielding ◽  
Multiwall Carbon ◽  
Electromagnetic Absorbers

The effect of electronic structures in the non-covalent conjugation and electromagnetic shielding mechanism co-related with fluorescence lifetime opens new avenues in designing electromagnetic absorbers.

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).

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).

scholarly journals Effect of Matrix Viscosity on Rheological and Microwave Properties of Polymer Nanocomposites with Multiwall Carbon Nanotubes

2014 ◽  
Vol 44 (2) ◽  
pp. 83-96 ◽  
Author(s):  
R. Kotsilkova ◽  
E. Ivanov ◽  
D. Bychanok ◽  
A. Paddubskaya ◽  
P. Kuzhir
Keyword(s):  
Carbon Nanotubes ◽  
Percolation Threshold ◽  
Multiwall Carbon Nanotubes ◽  
Electromagnetic Shielding ◽  
Microwave Properties ◽  
Multiwalled Carbon ◽  
Low Viscosity ◽  
The Matrix ◽  
Multiwall Carbon ◽  
Rheological Percolation

Abstract Nanocomposites of multiwalled carbon nanotubes (MWCNTs) in epoxy resin and polypropylene (PP) are studied. The effect of matrix viscosity on the degree of dispersion of nanotubes is determined by rheological methods. Rheology and microwave properties are correlated to estimate the optimal limits of nanofiller content required for improving the performance of nanocomposites. Rheological percolation threshold is determined for both types nanocomposites, ϕp=0.27% for the epoxy/MWCNT and; ϕp=1.5% for the PP/MWCNT, as found critical for achieving a network structure of interacting nanotubes in the matrix polymer. Good electromagnetic shielding efficiency was obtained for nanocomposites at nanotube contents above the rheological percolation. Low viscosity matrix facilitates contacts between MWCNTs, resulting in appearance of electromagnetic shielding at very low percolation threshold.

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.

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