Tuning the insulator to conductor transition in a multiwalled carbon nanotubes/epoxy composite at substatistical percolation threshold

2009 ◽  
Vol 95 (15) ◽  
pp. 153106 ◽  
Author(s):  
Gabriella Faiella ◽  
Filomena Piscitelli ◽  
Marino Lavorgna ◽  
Vincenza Antonucci ◽  
Michele Giordano
Keyword(s):  
Carbon Nanotubes ◽  
Percolation Threshold ◽  
Multiwalled Carbon Nanotubes ◽  
Epoxy Composite ◽  
Multiwalled Carbon

Convenient and solventless preparation of pure carbon nanotube/polybenzoxazine nanocomposites with low percolation threshold and improved thermal and fire properties

2014 ◽  
Vol 2 (19) ◽  
pp. 6814-6822 ◽  
Author(s):  
Camilo Zúñiga ◽  
Leïla Bonnaud ◽  
Gerard Lligadas ◽  
Juan Carlos Ronda ◽  
Marina Galià ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Bisphenol A ◽  
Percolation Threshold ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon ◽  
Pure Carbon ◽  
Fire Properties

This work contemplates the use of pristine multiwalled carbon nanotubes (MWNTs) as nanofillers in the preparation of bisphenol A-based polybenzoxazine and diphenolic acid derived polybenzoxazine.

Phase behaviour, microstructure, and percolation of poly(ethylene glycol) filled by multiwalled carbon nanotubes and organophilic montmorillonite

2011 ◽  
Vol 45 (24) ◽  
pp. 2555-2566 ◽  
Author(s):  
N.I. Lebovka ◽  
E.A. Lysenkov ◽  
A.I. Goncharuk ◽  
Yu.P. Gomza ◽  
V.V. Klepko ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Ethylene Glycol ◽  
Percolation Threshold ◽  
Multiwalled Carbon Nanotubes ◽  
Phase Behaviour ◽  
Poly Ethylene Glycol ◽  
Multiwalled Carbon ◽  
Poly Ethylene ◽  
High Level

This work studies phase behavior, microstructure and percolation of the poly(ethylene glycol) (PEG), filled by multiwalled carbon nanotubes (MWCNTs), organo-modified montmorillonite (OMMT), and their mixtures, using differential scanning calorimentry (DSC), X-ray diffraction (XRD), electrical conductivity, and analysis of microscopic images. The DSC and XRD data showed a noticeable decrease of PEG crystallinity with increase of nanofiller content. Filling of PEG by MWCNTs was accompanied by a percolation threshold at ≈0.1 wt%, and the estimated electrical conductivity exponent ( t = 1.77 ± 0.07) was typical for the random percolation networks. The similar threshold behavior, but with higher percolation threshold ≈0.5–1.0 wt%, was observed for PEG filled by OMMT. The observed effect of OMMT-enhanced dispersion of MWCNTS in PEG at a high level of loading by nanoparticles offers good prospects for simultaneous improvement of the electrical and mechanical properties of PEG-based composites.

Effect of Multiwalled Carbon Nanotubes On Mechanical Properties of Concrete

2012 ◽  
Vol 2 (6) ◽  
pp. 166-168 ◽  
Author(s):  
Dr.T.Ch.Madhavi Dr.T.Ch.Madhavi ◽  
◽  
Pavithra.P Pavithra.P ◽  
Sushmita Baban Singh Sushmita Baban Singh ◽  
S.B.Vamsi Raj S.B.Vamsi Raj ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon
Sign in / Sign up

Export Citation Format

Share Document