Effect of Solvents on the Dispersion Stability of Alloy 625 Nanoparticles

Abstract:

In order to select the most suitable solvent for the stable dispersion of Alloy 625 nanoparticles, we investigated the effects of several organic solvents on the dispersion stability. After preparing suspensions with a dispersant, we characterized the dispersion stability of the suspensions by means of visual inspection and Turbiscan transmission profiles. The dispersion stability of the solvents increased in the following order: ethyl acetate, xylene, toluene, 2-propanol, and ethanol. The polarity of the solvent affected the dispersion stability. The Alloy 625 nanoparticles were optimally dispersed in ethanol with the dispersant, Hypermer KD-2, which was stabilized by the steric effect of the dispersant.

• Periodical: Solid State Phenomena (Volume 119)
• Pages: 307-310
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.119.307
• Online since: January 2007
• Authors: Eun Hee Lee, Min Ku Lee, Chang Kyu Rhee
• Keywords: Alloy 625 Nanoparticles, Dispersant, Solvent, Suspension

References

[1] L.N. Lewis: Chem. Rev. 93 (1993), p.2693.

[2] B.C. Gates: Chem. Rev. 95 (1995), p.511.

[3] B.P. Singh, S. Bhattacharjee, L. Besra and D.K. Sengupta: J. Mater. Sci. Vol. 39 (2004), p.2437.

[4] C.L. Briant, C.S. O'Toole and E.L. Hall: Corrosion Vol. 55 (1999), p.355.

[5] A.Y. Yermakov, M.A. Uimin, A.A. Mysik and T. Goto: Mater. Sci. Forum Vol. 386/388 (2002), p.455.

[6] E.H. Lee, M. K. Lee and C.K. Rhee: Mater. Sci. Forum Vol. 510/511 (2006), p.206.

[7] TURBISCAN LAb User Guide (Formulaction, Inc., France 2005).

1020304050.

[20] [40] [60] [80] 100 Mean delta T(%) HOUR Ethanol 2-Propanol Ethyl acetate Toluene Xylene.

1020304050.

[5] [10] [15] [20] [25] -0. 4 -0. 2 0. 0 0. 2 0. 4 Mean delta BS (%) Ethyl acetate Xylene Toluene 2-Propanol Ethanol Mean delta BS (%) HOUR.