Young equation detergents

Detergency, or the power of a detergent product to remove soil, depends on the ability of surfactants to lower the interfacial tension between different phases. This can be explained for a typical case where removal of liquid soil is aided by surfactant adsorption onto the soil and substrate surfaces from the cleaning bath (Figure 2) using Young s equation,... 

Wettability Dependence of Detergency. The dependence of Dr on i]/ was described above. The purpose of this section will be to develop an expression for in terms of experimentally accessible interfacial tension quantities. To begin with, the TPL has a geometry as shown in Figure 7. For this system, the Young-Dupre"" equation (14-16) can be written as... 

On the other hand, if the dirt is liquid, it may form a layer or a spherical cap shape on the substrate surface, especially in warm solutions. Then, it is possible to apply the Young-Dupre equation (Equation (645)) to the detergent action... 

A recent abstract and verbal report by McKhann, Levy, and Ho (1965) reports the in vitro synthesis of cerebroside sulfate by a microsomal enzyme system from young rat brain (18— 22 days old). Sonic irradiation of the microsomal fractions resulted in the solublization of a sulfokinase system. The complete synthesis required the microsomal fraction of brain, S04 , ATP, cerebrosides, and a non-ionic detergent (Bbij 96). The reaction reported would be consistant with equations 8, 9, and 10. No incorporation of S-sulfate into a cholesterol ester nor an exchange with unlabelled cerebroside sulfate was observed. 

Work of adhesion Yes OKR, AFM) Yes (the ideal one is via Young-Dupre and similar equations) Adhesion, detergency... 

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