Abstract
The methyl oleate emulsion was prepared using alkylethoxyglucoside(AEG) surfactant and bentonite nanoparticles(NPT-2) as emulsifiers.The effects of the ratio of AEG to NPT-2 on the stability and diameter of the emulsive droplet were discussed in detail.The synergetic stability mechanism of the two compounds was investigated by means of surface tension and zeta potential measurement.The results showed that methyl oleate emulsion couldn′t be stabled by either alkylethoxyglucoside(AEG) or bentonite nanoparticles(NPT-2) alone.At fixed amount of AEG,the diameter of the emulsive droplet increased first and then decreased with increasing NPT-2.However,at fixed the amount of NPT-2,the diameter of the emulsive droplet decreased as increasing the amount of AEG.The lag of the surface tension curve and the increased value of the zeta potential indicated that the molecules of AEG were adsorbed onto the NPT-2 nanoparticles to stabilize the emusion synergetically.
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