The dynamic interfacial tensions between hydrocarbons and solutions of surfactants having different hydrophilic- lipophilic ability are measured.The effects of ionic strength and alkyl chain carbon- number on dynamic ...The dynamic interfacial tensions between hydrocarbons and solutions of surfactants having different hydrophilic- lipophilic ability are measured.The effects of ionic strength and alkyl chain carbon- number on dynamic interfacial tensions are also studied.It is found that adsorption- desorption barriers are connected with the hydrophilic- lipophilic ability of surfactants.There exists a large or small adsorption- desorption barrier to the transfer of surfactant having strong hydrophilic or lipophilic ability from water to oil.The influences of ionic strength and alkyl chain carbon- number on adsorption- desorption barriers are discussed.展开更多
After the careful analysis on the factors affecting the emulsification of the dispersion system consisting of oil, water and surfactant, and investigation on the mechanism for the formation of emulsions, a mathematica...After the careful analysis on the factors affecting the emulsification of the dispersion system consisting of oil, water and surfactant, and investigation on the mechanism for the formation of emulsions, a mathematical model to be used in the emulsification was derived finally. By comparing the results of experiments with the results concluded from the mathematical model, it was found that the model was reasonable and useful in the investigation of emulsifications.展开更多
文摘The dynamic interfacial tensions between hydrocarbons and solutions of surfactants having different hydrophilic- lipophilic ability are measured.The effects of ionic strength and alkyl chain carbon- number on dynamic interfacial tensions are also studied.It is found that adsorption- desorption barriers are connected with the hydrophilic- lipophilic ability of surfactants.There exists a large or small adsorption- desorption barrier to the transfer of surfactant having strong hydrophilic or lipophilic ability from water to oil.The influences of ionic strength and alkyl chain carbon- number on adsorption- desorption barriers are discussed.
文摘After the careful analysis on the factors affecting the emulsification of the dispersion system consisting of oil, water and surfactant, and investigation on the mechanism for the formation of emulsions, a mathematical model to be used in the emulsification was derived finally. By comparing the results of experiments with the results concluded from the mathematical model, it was found that the model was reasonable and useful in the investigation of emulsifications.
