Effect of surfactants on contact angles at nonpolar solids

Bargeman, D.; Vader, F. van Voorst

doi:10.1016/0021-9797(73)90031-3

Cited by 115 publications

(85 citation statements)

References 10 publications

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“…On the basis of these approximations, it can be stated that the value of c C of nylon-6 at the constant concentration of the surfactant mixture is practically constant (26.7-28.3 mN/m) and does not depend on the concentration and composition of the surfactant mixture. According to Bargeman and van Voorst Vader (1973), there is a linear relationship between the adhesion tension (c LV cosh) and the surface tension of the liquid (c LV ). This relationship was confirmed for the studied solutions, of course only in the range of ethanol concentration in which the complete spreading of the solution on the nylon-6 surface does not occur, because only in this range the Young's equation is correct (Figs.…”

Section: Adsorption (2013) 19:435-444 439mentioning

confidence: 99%

Adsorption of Triton X-100 and cetyltrimethylammonium bromide mixture with ethanol at nylon-6–solution interface with regard to nylon-6 wettability: I. The effect of adsorption on critical surface tension of nylon-6 wetting

2013

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The contact angle measurements of the aqueous solutions of p-(1,1,3,3-tetramethylbutyl)phenoxypoly(ethylene glycol) (TX-100) and cetyltrimethylammonium bromide (CTAB) mixture with ethanol on nylon-6 were made in the range of the total concentration of CTAB and TX-100 mixture from 1 9 10 -6 to 1 9 10 -3 M and ethanol from 0 to 17.13 M. In the CTAB and TX-100 mixture the mole fraction of TX-100 was equal to 0; 0.2; 0.4; 0.6; 0.8 and 1. On the basis of the obtained results, the critical surface tension of nylon-6 wetting was determined from the dependence of cosine of contact angle and the adhesion tension as a function of the surface tension of the solution. This tension was compared to the components and parameters of nylon-6 surface tension taken from literature and discussed in the light of the surface excess concentration of the surface active agents at the nylon-6-solution interface calculated from the Lucassen-Reynders equation and the Gibbs isotherm.

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Section: Adsorption (2013) 19:435-444 439mentioning

confidence: 99%

Adsorption of Triton X-100 and cetyltrimethylammonium bromide mixture with ethanol at nylon-6–solution interface with regard to nylon-6 wettability: I. The effect of adsorption on critical surface tension of nylon-6 wetting

2013

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“…However, Bargeman and van Voorst Vader [3] found that it is possible to determine the value of the critical surface tension of wetting from the linear relationship between the adhesion and surface tension of aqueous solutions of surfactants. Of course, the liquids surface tension of which is lower than the values of the surface tension of wetting of a given solid completely wet the solid surfaces, while those having a higher surface tension only partially wet solids.…”

mentioning

confidence: 99%

The wettability of polytetrafluoroethylene and polymethylmethacrylate by aqueous solutions of Triton X-100 and propanol mixtures

Zdziennicka

2009

Applied Surface Science

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“…In this case, the interfacial tension between the solid and liquid phase is given approximately by Eq. (7) [8]:…”

Section: Wetting Characteristics Of Membrane-solvent Combinationmentioning

confidence: 99%

Membrane–solvent selection for CO2 removal using membrane gas–liquid contactors

Dindore

Brilman²,

Geuzebroek

et al. 2004

Separation and Purification Technology

195

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Membrane gas-liquid contactors can provide very high interfacial area per unit volume, independent regulation of gas and liquid flows and are insensitive to module orientation, which make them very attractive in comparison with conventional equipments for offshore application. However, the membrane adds an additional resistance in the process of mass transfer. The mass transfer resistance of the membrane is affected by the presence of the liquid inside the membrane pores. This wetting of the membrane is determined by the properties of the membrane and the liquid mutually. Hence, a proper choice of the membrane-solvent combination is a critical and determining step in developing membrane gas absorption processes.Important criteria for the selection of the membrane-solvent combination for membrane gas-liquid contactors, such as the critical entry pressure, contact angle and critical solvent surface tension are evaluated in this paper. These characterizing properties of membranes and solvents are experimentally measured for various membrane and solvent combinations for the case of bulk CO 2 removal. For selected combinations the actual gas-liquid mass transfer process for CO 2 absorption is explored experimentally in the flat sheet as well as in the hollow fiber membrane configuration. The experimental results were compared to the theoretical calculations to determine possible mass transfer limitations due to wetting effects. The polypropylene membrane in combination with propylene carbonate as an absorption liquid was found to be a suitable combination for bulk CO 2 removal using membrane gas-liquid contactors.

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Effect of surfactants on contact angles at nonpolar solids

Cited by 115 publications

References 10 publications

Adsorption of Triton X-100 and cetyltrimethylammonium bromide mixture with ethanol at nylon-6–solution interface with regard to nylon-6 wettability: I. The effect of adsorption on critical surface tension of nylon-6 wetting

Adsorption of Triton X-100 and cetyltrimethylammonium bromide mixture with ethanol at nylon-6–solution interface with regard to nylon-6 wettability: I. The effect of adsorption on critical surface tension of nylon-6 wetting

The wettability of polytetrafluoroethylene and polymethylmethacrylate by aqueous solutions of Triton X-100 and propanol mixtures

Membrane–solvent selection for CO2 removal using membrane gas–liquid contactors

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