Nanofluids containing carbon nanotubes treated by mechanochemical reaction

Multi-walled carbon nanotubes (CNTs) were treated by using mechanochemical reaction method to enhance their dispersibility for producing CNT nanofluids. The thermal conductivity was measured by a short hot wire technique and the viscosity was measured by a rotary viscometer. The thermal conductivity...

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Bibliographic Details
Published in:Thermochimica acta 2008-10, Vol.477 (1), p.21-24
Main Authors: Chen, Lifei, Xie, Huaqing, Li, Yang, Yu, Wei
Format: Article
Language:English
Subjects:
Carbon nanotube
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Mechanochemical reaction
Nanofluid
Nanoscale materials and structures: fabrication and characterization
Other topics in nanoscale materials and structures
Physics
Thermal conductivity
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Summary:Multi-walled carbon nanotubes (CNTs) were treated by using mechanochemical reaction method to enhance their dispersibility for producing CNT nanofluids. The thermal conductivity was measured by a short hot wire technique and the viscosity was measured by a rotary viscometer. The thermal conductivity enhancement reaches up to 17.5% at volume fraction of 0.01 for an ethylene glycol based nanofluid. Temperature has no obvious effects on thermal conductivity enhancement for the as prepared nanofluids. With an increase in thermal conductivity of the base fluid, the thermal conductivity enhancement of a nanofluid decreases. At low volume fractions (
ISSN:0040-6031
1872-762X
DOI:10.1016/j.tca.2008.08.001