Results 261 to 270 of about 158,723 (299)
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Colloid & Polymer Science, 1992
The effect of the micelles on the dynamic surface tension of micellar surfactant solutions is studied experimentally by means of the maximum bubble pressure method. Different frequencies of bubbling ranging approximately between 1 and 30 s−1 are applied. The time dependence of the surface tension is calculated using a dead time correction.
Tz. H. Iliev, C. D. Dushkin
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The effect of the micelles on the dynamic surface tension of micellar surfactant solutions is studied experimentally by means of the maximum bubble pressure method. Different frequencies of bubbling ranging approximately between 1 and 30 s−1 are applied. The time dependence of the surface tension is calculated using a dead time correction.
Tz. H. Iliev, C. D. Dushkin
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Colloids and Surfaces, 1990
Abstract Industrial processes frequently use surfactants to lower liquid surface tension and promote wetting. In many instances, it is incorrect to apply the equilibrium (static) surface tension to predict the behavior of these processes because they operate under time-dependent (dynamic) conditions.
Douglas E. Hirt +3 more
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Abstract Industrial processes frequently use surfactants to lower liquid surface tension and promote wetting. In many instances, it is incorrect to apply the equilibrium (static) surface tension to predict the behavior of these processes because they operate under time-dependent (dynamic) conditions.
Douglas E. Hirt +3 more
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International Journal of Thermophysics, 2017
A surface tension measurement method based on the maximum bubble pressure (MBP) method was developed in order to precisely determine the surface tension of molten silicates in this study. Specifically, the influence of viscosity on surface tension measurements was quantified, and the criteria for accurate measurement were investigated.
Osamu Takeda +4 more
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A surface tension measurement method based on the maximum bubble pressure (MBP) method was developed in order to precisely determine the surface tension of molten silicates in this study. Specifically, the influence of viscosity on surface tension measurements was quantified, and the criteria for accurate measurement were investigated.
Osamu Takeda +4 more
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Measurement of the surface tension of electrolytic copper by the maximum gas bubble pressure method
Bulletin of the Academy of Sciences, USSR Division of Chemical Science, 19641. 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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Heat Transfer: Volume 1, 2003
Surfactant solution systems are encountered in many different applications, including as a method to enhance the nucleate boiling performance of water. Characterizing the attendant interfacial phenomena requires precise predictions of their surface tension relaxation behavior.
Manish Bahl +2 more
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Surfactant solution systems are encountered in many different applications, including as a method to enhance the nucleate boiling performance of water. Characterizing the attendant interfacial phenomena requires precise predictions of their surface tension relaxation behavior.
Manish Bahl +2 more
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Colloids and Surfaces A: Physicochemical and Engineering Aspects, 1998
Abstract The dynamic surface tension of Triton X-100 solutions was measured using the maximum bubble pressure method (MBPM). The data obtained depended on the geometry and material of the capillaries employed. It is shown that reliable results are obtained with short capillaries of hydrophobic internal surfaces.
Lylyk, S. +5 more
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Abstract The dynamic surface tension of Triton X-100 solutions was measured using the maximum bubble pressure method (MBPM). The data obtained depended on the geometry and material of the capillaries employed. It is shown that reliable results are obtained with short capillaries of hydrophobic internal surfaces.
Lylyk, S. +5 more
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Journal of Colloid and Interface Science, 2006
Exact knowledge of the dead time as part of the bubble lifetime in the maximum bubble pressure method is an important prerequisite for accurate dynamic surface tension measurements. The duration of the dead time depends essentially on the capillary geometry and affects significantly the measured surface tensions of concentrated surfactant solutions ...
Fainerman, V. +3 more
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Exact knowledge of the dead time as part of the bubble lifetime in the maximum bubble pressure method is an important prerequisite for accurate dynamic surface tension measurements. The duration of the dead time depends essentially on the capillary geometry and affects significantly the measured surface tensions of concentrated surfactant solutions ...
Fainerman, V. +3 more
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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.
Miller, R., Fainerman, V., Joos, P.
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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.
Miller, R., Fainerman, V., Joos, P.
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Journal of Colloid Science, 1961
Abstract A method is presented for the use of the maximum bubble pressure method of measuring surface tension, to measure dynamic surface tensions of solutions of slowly diffusing soluble molecules. Data obtained using this method on aqueous solutions of decanoic acid and decyl alcohol are also presented.
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Abstract A method is presented for the use of the maximum bubble pressure method of measuring surface tension, to measure dynamic surface tensions of solutions of slowly diffusing soluble molecules. Data obtained using this method on aqueous solutions of decanoic acid and decyl alcohol are also presented.
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