Keywords
adsorption
detonation nanodiamonds
dispersion stabilization
dynamic light scattering
Igepal CA-630
IR spectroscopy
nonionic surfactant
spectrophotometry
Abstract
Nanodiamond dispersions in water and DMSO were stabilized with adsorbed layers of nonionic surfactant Igepal CA-630. Adsorption isotherms of Igepal CA-630 onto nanodiamonds from water and DMSO reveal the structure of the adsorbed layers. The stabilized aqueous dispersions retain their resistance to aggregation for at least 7 days, while the dispersions in DMSO are stable for 3 days.
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