Study of Natural Convection MHD Nanofluid by Means of Single and Multi-Walled Carbon Nanotubes Suspended in a Salt-Water Solution

2015 ◽  
Vol 14 (4) ◽  
pp. 726-734 ◽  
Author(s):  
Rahmat Ellahi ◽  
Mohsin Hassan ◽  
Ahmad Zeeshan
2009 ◽  
Vol 56 (5) ◽  
pp. 935-939 ◽  
Author(s):  
Jun-Wei Su ◽  
Chuen-Yuan Hsu ◽  
Shu-Juan Fu ◽  
Chian-Hua Guo ◽  
Kuan-Jiuh Lin

2018 ◽  
Vol 89 (7) ◽  
pp. 1144-1152 ◽  
Author(s):  
Yehua Sun ◽  
Yaqin Fu ◽  
Jingjing Luo ◽  
Rui Wang ◽  
Yubing Dong

The dispersion of carbon nanotubes in solvents is crucial for their practical applications. In this study, multi-walled carbon nanotubes (MWCNTs) functionalized with water-soluble silk fibroin (SF) were prepared via chemical modification on the carbon nanotube surface in water solution. These fillers are low in toxicity and environmentally friendly. The SF-functionalized MWCNTs greatly improved dispersion in H2O and methanoic acid. Additionally, a methyl thiazolyl tetrazolium assay was performed to assess biocompatibility and the results indicated the favorable biocompatible properties of MWCNTs due to SF functionalization. Therefore, SF-functionalized MWCNTs have potential applications in waterborne polymer-based nanocomposites, especially in the biomedical field.


2013 ◽  
Vol 275-277 ◽  
pp. 1785-1788 ◽  
Author(s):  
Ting Ting Zhang ◽  
Li Ming Zou ◽  
Xin Long Ling ◽  
Xi Li

A noncovalent method was presented in order to improve the solubility of multi-walled carbon nanotubes (MWCNTs) in water. Poly (ε-benzyloxycarbonyl-L-lysine) (PZLL) was prepared by ring-opening polymerization of ε-carbobenzoxy-L-lysine N-carboxyanhydride (Z-L-Lys NCA). After the removal of the benzyloxycarbonyl group, water-soluble poly-L-lysine (PLL) was obtained. The structure of PZLL and PLL was characterized by FTIR and 1H NMR. Dispersion of MWCNTs in the water solution of PLL was investigated by ultraviolet spectrophotometer and visual inspection. When the mass ratio of MWCNTs to PLL is 1:50 and the pH value of the water solution of PLL is 5, MWCNTs can be well dispersed in water.


Acta Naturae ◽  
2011 ◽  
Vol 3 (1) ◽  
pp. 99-106 ◽  
Author(s):  
E A Smirnova ◽  
A A Gusev ◽  
O N Zaitseva ◽  
E M Lazareva ◽  
G E Onishchenko ◽  
...  

2003 ◽  
Vol 772 ◽  
Author(s):  
T. Seeger ◽  
G. de la Fuente ◽  
W.K. Maser ◽  
A.M. Benito ◽  
A. Righi ◽  
...  

AbstractCarbon nanotubes (CNT) are interesting candidates for the reinforcement in robust composites and for conducting fillers in polymers due to their fascinating electronic and mechanical properties. For the first time, we report the incorporation of multi walled carbon nanotubes (MWNTs) into silica-glass surfaces by means of partial surface-melting caused by a continuous wave Nd:YAG laser. MWNTs were detected being well incorporated in the silica-surface. The composites are characterized using scanning electron microscopy (SEM) and Raman-spectroscopy. A model for the composite-formation is proposed based on heatabsorption by MWNTs and a partial melting of the silica-surface.


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