Abstract
Surface tension of any fluid is crucial for multiphase systems and is often manipulated during industrial processes by introducing surfactants. Normally, water used in an industry includes impurity such as salt. In this study, effect of sodium chloride concentrations, microwave power and time on surface tension of aqueous solution was investigated under microwave irradiation. It has found that surface tension decreased quickly, while temperature increased during microwave. Once the radiation is turned off, the temperature returns rapidly as expected. However, surface tension recovery was much slower than temperature. Moreover, the recovery and reduction amounts by non-thermal effect depend on the power and concentrations.
Published Version
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