Stress-induced fragmentation of multiwall carbon nanotubes in a polymer matrix

1998 ◽  
Vol 72 (2) ◽  
pp. 188-190 ◽  
Author(s):  
H. D. Wagner ◽  
O. Lourie ◽  
Y. Feldman ◽  
R. Tenne
Keyword(s):  
Carbon Nanotubes ◽  
Polymer Matrix ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon

Predicting the thermal conductivity of polypropylene-multiwall carbon nanotubes using the Krenchel model

2018 ◽  
Vol 25 (2) ◽  
pp. 383-388 ◽  
Author(s):  
Atheer M. Almasri
Keyword(s):  
Experimental Data ◽  
Thermal Conductivity ◽  
Carbon Nanotubes ◽  
Polymer Matrix ◽  
Multiwall Carbon Nanotubes ◽  
Particulate Composite ◽  
Packing Factor ◽  
Three Phase ◽  
Cylindrical Tubes ◽  
Multiwall Carbon

AbstractThe thermal conductivity of particulate composite models is well documented in the literature. This paper attempts to fit the experimental data for the thermal conductivity of polymer nanocomposites to a three-phase Krenchel model. The use of this model is applicable for structures that consist of a polymer matrix, a nanofiller, and an interfacial layer around the nanoparticles. The effect of Kapitza’s thermal resistance is implemented in the model along with the assumption that the nanofillers are cylindrical and well connected to each other; however, no parameters related to any type of dispersants or the dispersion techniques are stated in the model. The results of the three-phase Krenchel model were validated using the experimental data of thermal conductivity of multiwall carbon nanotubes embedded in polypropylene matrix nanocomposites. It was found that the model was in good agreement with the experimental thermal conductivity data. Moreover, the results from the model showed that the filler geometrical packing factor was 0.75; consequently, the carbon nanotubes formed bundles of several cylindrical tubes. The length of the interface between the nanotubes and the polymer matrix was around 1 Å. Finally, the thermal conductivity of the composite bundle cylinder was 21.63 W/(m K).

Boehmite Nanofibers as a Dispersant for Nanotubes in an Aqueous Sol

2018 ◽  
Author(s):  
Gen Hayase
Keyword(s):  
Carbon Nanotubes ◽  
Aspect Ratio ◽  
Aqueous Solutions ◽  
High Aspect Ratio ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon ◽  
Nanotube Films

By exploiting the dispersibility and rigidity of boehmite nanofibers (BNFs) with a high aspect ratio of 4 nm in diameter and several micrometers in length, multiwall-carbon nanotubes (MWCNTs) were successfully dispersed in aqueous solutions. In these sols, the MWCNTs were dispersed at a ratio of about 5–8% relative to BNFs. Self-standing BNF–nanotube films were also obtained by filtering these dispersions and showing their functionality. These films can be expected to be applied to sensing materials.

scholarly journals Comparative study of using Water-Based mud containing Multiwall Carbon Nanotubes versus Oil-Based mud in HPHT fields

2016 ◽  
Vol 25 (4) ◽  
pp. 459-464 ◽  
Author(s):  
M.I. Abduo ◽  
A.S. Dahab ◽  
Hesham Abuseda ◽  
Abdulaziz M. AbdulAziz ◽  
M.S. Elhossieny
Keyword(s):  
Carbon Nanotubes ◽  
Comparative Study ◽  
Multiwall Carbon Nanotubes ◽  
Water Based ◽  
Multiwall Carbon

Multiwall Carbon Nanotubes Non-covalently Functionalized by Porphyrin–Sn Networks for Protein Adsorption

2021 ◽  
Vol 4 (3) ◽  
pp. 2345-2350
Author(s):  
Chaofeng Wang ◽  
Yi Hao ◽  
Yue Wang ◽  
Huijia Song ◽  
Sameer Hussain ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Protein Adsorption ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon
Sign in / Sign up

Export Citation Format

Share Document