Results 251 to 260 of about 232,970 (323)
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.
Ceco D. Dushkin +2 more
semanticscholar +3 more sources
Studies of concentrated surfactant solutions using the maximum bubble pressure method
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2000 Abstract An analysis of the adsorption process during the deadtime period in maximum bubble pressure experiments is performed. The adsorption dynamics is calculated for the actual surface area increase of a bubble in a surfactant solution, which depends on characteristic system parameters such as the length and diameter of the capillary and the ...
N. A. Mishchuk +4 more
semanticscholar +4 more sources
Unusual Characteristics of the Maximum Bubble Pressure Method Using a Teflon Capillary
Journal of Colloid and Interface Science, 1994 Abstract The maximum bubble pressure method has been used recently in a continuous-bubbling mode to measure the dynamic surface tension of surfactant solutions at varying bubble frequencies. A modification of this method, which utilizes a syringe pump supplying gas at controlled rates, has been developed to examine bubble growth by providing an ...
Cheryl P. Hallowell, Douglas E. Hirt
semanticscholar +3 more sources
Journal of Colloid and Interface Science, 1989 Abstract The maximum bubble pressure method for measuring dynamic surface tension is reexamined, using high speed cinematography, particularly with respect to the process of bubble formation and the determination of the true surface age. A method for direct measurement of the time of bubble growth is suggested which readily permits routine ...
Peter R. Garrett, David Ward
semanticscholar +3 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Density of Liquid Manganese Measured Using the Maximum Bubble Pressure Method
Metallurgical and Materials Transactions B, 2021Manganese is an important metal for steelmaking. Data on the density of the metal are scarce and show considerable scatter. Present work reports the density of the liquid manganese in the range of 1535 K to 1836 K estimated for the first time with the use of the maximum bubble pressure technique.
Iurii Korobeinikov +3 more
openaire +2 more sources
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
semanticscholar +3 more sources
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2004 One of the essential differences in the design of bubble pressure tensiometers consists in the geometry of the measuring capillaries. To reach extremely short adsorption times of milliseconds and below, the so-called deadtime of the capillaries must be of the order of some 10 ms.
V. B. Fainerman +4 more
semanticscholar +4 more sources
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
semanticscholar +3 more sources
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.
Roy J. Kuffner
semanticscholar +3 more sources
Dynamic surface tension of micellar solutions studied by the maximum bubble pressure method
Colloid & Polymer Science, 1994 Ceco D. Dushkin, Tz. Iliev
semanticscholar +3 more sources