Vegetable oils surface coverage

In order to apply an adsorption model such as the one given in eq. (13.7), first one has to construct an adsorption isotherm, i.e., a relationship between fractional surface coverage, 0, and bulk concentration, O, of vegetable oil using the measured interfacial property data. Fractional surface coverage, 0, can be obtained from the measured interfacial property data as follows ... 

The effect of bulk vegetable oil concentration on fractional surface coverage obtained using eq. (13.8) for data from friction and interfacial-tension experiments are shown in figs. 13.15-13.17. The figures also show the COF and interfacial-tension data that were used to calculate the fractional surface-coverage values. The results... 

Higher oleic acid-containing vegetable oils (e.g., soybean and canola oils) showed more uniform coverage on the SS 304 strip surface (figs. 14.9 and 14.10, respectively). Com... 

The SEM image from the thermo-oxidative stressing of the cottonseed oil sample shows layered surface coverage. Of the oils studied, this vegetable oil has the highest palmitic acid content. A defect structure of layered coverage from the thermo-oxidative stressing of cottonseed oil can be seen in fig. 14.12. 

The two vegetable oils that are solid at room temperature produced deposits with different surface coverage and different microstructure. Palm oil covered the surface more uniformly (fig. 14.13), while coconut oil produced a spongelike surface coverage (fig. 14.14). Fatty acid compositions of these two vegetable oils are quite different... 

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