Results 261 to 270 of about 830,855 (309)

Measurement of the surface tension of electrolytic copper by the maximum gas bubble pressure method

open access: closedBulletin of the Academy of Sciences, USSR Division of Chemical Science, 1964
1. The surface tension of electrolytic copper at 1600° has been measured and found to be 1230 dyne/cm. 2. The possibility has been shown of experimentally confirming the correctness of the use of external radii in calculating a from Cantor's formula or from Sugden's formula in the investigation of non-wetting liquids.
V. I. Yashkichev, V.B. Lazarev
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The measurement of dynamic surface tensions of highly viscous liquids by the maximum bubble pressure method

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 1993
Abstract A newly designed apparatus based on the principle of maximum bubble pressure can be used for measuring the dynamic surface tension in a time interval from 1 ms to 10 s. The surface tension values for pure liquids obtained at small lifetimes are influenced by hydrodynamic effects.
V. B. Fainerman   +2 more
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Measurement of the dynamic surface tension by the maximum bubble pressure method. II. Calculation of the effective age of the solution-air interface

Journal of Colloid and Interface Science, 1972
Abstract In the measurements of the time dependency of the surface tension (γ) by the maximum bubble pressure method, the effective age of the surface of the solution (T) is smaller than the measured interval between the separation of the two subsequent bubbles (t).
J. Kloubek
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Dynamic surface tension of micellar solutions studied by the maximum bubble pressure method

Colloid and Polymer Science, 1995
A theoretical model for the dynamic surface tension of an air bubble expanding in micellar surfactant solution is proposed. The model accounts for the effect of expansion of the bubble surface during the adsorption of surfactant molecules (monomers) and the effect of disintegration of polydisperse micelles on the surfactant diffusion.
Tz. H. Iliev   +2 more
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Some Questions of the Measurement of the Surface Tension of Molten Metals by the Method of Maximum Gas Bubble Pressure

open access: closed, 1965
Of the numerous methods of measuring the surface tension (σ) of molten metals, the commonest is the method of the maximum pressure in a gas bubble or drop, the theory of which was developed by Cantor in 1892 [1]. Of 223 investigations published on the measurement of surface tension of molten metals up to the commencement of 1961, the method of maximum ...
P. P. Pugachev
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Dynamic Surface Tension of Ionic Liquid [C<sub>10</sub>(EP<sub>y</sub>)<sub>2</sub>]Br<sub>2</sub> Using Maximum Bubble Pressure Method

open access: closed, 2012
The ionic liquids used in this study are (1,1’-decane-1,10-diylbis (3-ethylpyridinium) dibromide. The reason of this experiment is to figure out character of ionic liquids called green solvent.
Dahye La, Amuthan Chinnappan, Hern Kim
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Effect of the surface expansion and wettability of the capillary on the dynamic surface tension measured by the maximum bubble pressure method

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 1996
The dynamic surface tension (DST) of sodium dodecyl sulfate solutions in the presence of sodium chloride is studied by the maximum bubble pressure method. The pressure oscillations are measured with a pressure transducer, while the change of the bubble area with time is determined by means of a video system. The role of the wettability of the capillary
Luben N. Arnaudov   +6 more
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Dynamic of soluble adsorption layer studied by a maximum bubble pressure method in the µs and ms range of time

open access: closed, 2007
The MPT1 allows to determine the bubble dead time and to calculate the effective surface age of a bubble. The developed theory for describing adsorption processes at the surface of a growing bubble and useful approximate solutions of this theory give access to a quantitative interpretation of experiments.
R. Miller, V. B. Fainerman, P. Joos
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