Structural transitions in aqueous suspensions of natural graphite
Moraru, Vasily · Lebovka, Nikolai · Shevchenko, Dmitrii
Original · EN
The electric conductivity σ and plastic viscosity η of aqueous suspensions at different volume fraction of graphite ϕ and concentration of nonionic surfactant (Triton X-305) are investigated. The correlations between conductivity and rheological properties are discussed. A model of structural transitions in aqueous graphite suspensions is discussed. Two structural transitions, corresponding to changes in electrical and rheomechanical properties, are identified as percolation and sol-gel transitions, respectively. An unusual initial decrease of the bulk electrical conductivity with graphite volume fraction ϕ increase was observed in surfactant solution. This fact is explained as a result of isolating coating formation around the graphite particles.
English translation
This paper has no Arabic translation yet. Be the first: it takes a few seconds, and the result is stored for every future reader.