Effect of Surfactants on Stability and Rheological Properties of Highly Concentrated Aqueous Titanium Dioxide Suspensions

Abstract

Abstract: The effects of sodium dodecyl sulfate(SDS) and ethoxylated octylphenol(TX100) on the adsorption, stability and rheological properties of aqueous TiO₂ suspensions have been studied. It was found that the adsorption isotherm of SDS on TiO₂ surface was shown to be the type of "S". With the increasing of SDSconcentration, the ζ potential and stability increase, while the viscosity and yield value decrease at first and then increase. The adsorption amount of nonionic surfactant TX100 is much smaller than that of SDS. No obvious effect was shown on the stability and rheological properties of the TiO₂ suspensions.

Key words: TiO₂ suspensions, Stability, Rheological property

CLC Number:

O643

TrendMD:

CHEN Xiao-Bin, CHENG Hu-Min, MA Ji-Ming. Effect of Surfactants on Stability and Rheological Properties of Highly Concentrated Aqueous Titanium Dioxide Suspensions[J]. Chem. J. Chinese Universities, 1998, 19(3): 457.

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Effect of Surfactants on Stability and Rheological Properties of Highly Concentrated Aqueous Titanium Dioxide Suspensions

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