Note on the Dispersion in Perfluoropolyether Lubricants of Multi-Walled Carbon Nanotubes Functionalized with (tridecafluoro-1,1,2,2-tetrahydrooctyl)Trichlorosilane
Multi-walled carbon nanotubes functionalized with F3C-(CF2)5-(CH2)2-SiCl3, a molecule bearing a fluorinated terminal group is found to favor the carbon nanotubes dispersion in three perfluoropolyether fluids (Galden® SV70, Fomblin® Y25 and Fomblin® YR1800). The stability of the suspension appears to be related to the perfluoropolyether viscosity. With respect to time, Fomblin® YR1800, the more viscous fluid, leads to the most stable solutions, followed in order by Fomblin® Y25 and Galden® SV70. In general the smallest particles stay in suspensions. Stability extending over more than one year is observed in the case of Fomblin® YR1800.
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Document Type: Research Article
Publication date: 2007-10-01
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