Thermal and rheological properties of carbon nanotube-in-oil dispersions

2006 ◽  
Vol 99 (11) ◽  
pp. 114307 ◽  
Author(s):  
Ying Yang ◽  
Eric A. Grulke ◽  
Z. George Zhang ◽  
Gefei Wu
Keyword(s):  
Carbon Nanotube ◽  
Rheological Properties

Synthesis, thermal, mechanical and rheological properties of multiwall carbon nanotube/waterborne polyurethane nanocomposite

2005 ◽  
Vol 65 (11-12) ◽  
pp. 1703-1710 ◽  
Author(s):  
Hsu-Chiang Kuan ◽  
Chen-Chi M. Ma ◽  
Wei-Ping Chang ◽  
Siu-Ming Yuen ◽  
Hsin-Ho Wu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Rheological Properties ◽  
Waterborne Polyurethane ◽  
Multiwall Carbon Nanotube ◽  
Multiwall Carbon

Direct Filament Formation of Biological Carbon Nanotube Suspensions

2012 ◽  
Vol 2012 (CICMT) ◽  
pp. 000132-000135
Author(s):  
Hiroya Abe ◽  
Zhenquan Tan ◽  
Akira Kondo ◽  
Makio Naito
Keyword(s):  
Carbon Nanotube ◽  
Liquid Crystals ◽  
Rheological Properties ◽  
Water System ◽  
Sodium Deoxycholate ◽  
Lyotropic Liquid Crystals ◽  
Shear Direction ◽  
Filament Formation ◽  
Self Association ◽  
Cnt Suspensions

In this study, aqueous carbon nanotube (CNT) suspensions were prepared using biological surfactant of sodium deoxycholate (NaDC). The influence of NaDC concentration on the NaDC self-association in water and the rheological responses of the NaDC-CNT-water system were investigated. It has been found that the yield stress of the suspension increased with NaDC concentration, which was strongly related to the NaDC self-association of lyotropic liquid crystals. Due to the enhanced rheological properties at high NaDC concentration (30%), it allowed the shear-induced filament formation in which the CNTs were aligned along to the shear direction. This filament formation may be attractive for transferring aligned CNTs on substrates in a controlled manner.

Electrical and Rheological Properties of Double Percolated Poly(methyl methacrylate)/Multiwalled Carbon Nanotube Nanocomposites

2007 ◽  
Vol 7 (11) ◽  
pp. 3847-3851 ◽  
Author(s):  
Sung-Hun Jin ◽  
Dai-Soo Lee
Keyword(s):  
Carbon Nanotube ◽  
Methyl Methacrylate ◽  
Rheological Properties ◽  
Critical Concentration ◽  
Threshold Concentration ◽  
Multiwalled Carbon Nanotube ◽  
Multiwalled Carbon ◽  
Poly Methyl Methacrylate ◽  
Critical Concentrations ◽  
Double Percolation

Electrical and rheological properties of nanocomposites based on poly(methyl methacrylate) (PMMA) and multiwalled carbon nanotube (MWCNT) were studied from view points of double percolation by adding crosslinked methyl methacrylate-butadiene-styrene (MBS) copolymer particles to lower percolation threshold concentration of MWCNTs. It was found that the critical concentrations of MWCNTs for the percolation in the nanocomposites decrease and then increase with increasing the MBS contents of the nanocomposites. It is postulated that the addition of MBS at low concentrations results in double percolation of MWCNT and the significant decrease of critical concentration for the percolations. However, adding MBS particles in large amounts results in limited space for the distribution of MWCNTs and less efficient dispersion of the MWCNTs and the increase of the critical concentrations of MWCNTs for the percolations. Rheological properties and change of Tgs reflect large interfacial areas in the well dispersed nanocomposite and were also interpreted to support the speculations for the effects of MBS contents and MWCNT concentrations of PMMA/MWCNT nanocomposites.

Rheological properties and irreversible dispersion changes in carbon nanotube/epoxy systems

2011 ◽  
Vol 52 (4) ◽  
pp. 849-855 ◽  
Author(s):  
Sonja Carolin Schulz ◽  
Jana Schlutter ◽  
Samuel T. Buschhorn ◽  
Karl Schulte ◽  
Wolfgang Bauhofer
Keyword(s):  
Carbon Nanotube ◽  
Rheological Properties ◽  
Epoxy Systems
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