Aggregative stability of water suspension of finely dispersed basalt

Production of polyfunctional wood-mineral compositions based on modified wood bark and finely dispersed basalt is associated with the use of aqueous suspension that contains micro- and nanosized rock particles as a solid phase. In this regard, this paper presents the results of the studies focused o...

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Bibliographic Details
Published in:Nanotehnologii v stroitelʹstve 2018-01, Vol.10 (6), p.77-90
Main Authors: Danilov, L.E., Shinkaruk, A.A., Ayzenshtadt, A.M., Drozdyuk, T.A., Frolova, M.A.
Format: Article
Language:English
Subjects:
Bark
Basalt
Dependence
Dispersion
Electrokinetics
finely dispersed basalt
modified tree bark
protolytic properties
Sedimentation
Sedimentation & deposition
Solid phases
Stability
Studies
Water
Wood
Zeta potential
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Summary:Production of polyfunctional wood-mineral compositions based on modified wood bark and finely dispersed basalt is associated with the use of aqueous suspension that contains micro- and nanosized rock particles as a solid phase. In this regard, this paper presents the results of the studies focused on the aggregative stability of water suspension of finely dispersed basalt. The stability is associated with the electrokinetic potential of particles of the dispersed phase. The potential varies in dependence on the protolytic properties of the dispersion medium. Measurement of dimensional characteristics in the course of time was carried out with photon-correlation spectroscopy. It has been determined that when pH of the medium is in the range from 7 to 11 the suspension of finely dispersed basalt is aggregatively and sedimentation stable. The critical value of the zeta potential of particles of the solid phase, at which the electrostatic barrier of their interaction indicates itself, is 30 mV.
ISSN:2075-8545
2075-8545
DOI:10.15828/2075-8545-2018-10-6-77-90