Aggregative Stability of Aqueous Suspensions of Halloysite Nanotubes

The aggregative stability of suspensions of halloysite nanotubes obtained by ultrasonic dispersion (USD) in the aqueous media with various stabilizers (superplasticizer C-3, polyvinyl alcohol (PVA), sodium oleate, cationic additive Polyram L 200) is considered. It has been established that superplasticizer C-3 is maximum efficient as a stabilizer of aqueous dispersions for cement composites based on halloysite nanotubes. Its stabilizing effect is mainly cоnnected with the formation of steric hindrances to aggregation due to the adsorptive and solvate as well as structural and mechanical factors of stabilization. The dependence of the magnitude of ζ-potential, particle size and specific surface area of aqueous suspensions with different stabilizers on ultrasonic dispersion time effect, exposure time and solid phase concentration is proven.

N.P. LUKUTTSOVA, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
S.N. GOLOVIN, Student Bryansk state engineering-technological university (3, Stanke Dimitrova Avenue, Bryansk, 241037, Russian Federation)

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