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Citation: XU Ming-Jin, LI Ming-Yuan, PENG Bo, WU Zhao-Liang, LIN Mei-Qin, GUO Ji-Xiang, DONG Zhao-Xiao. Effects of Strength of Interfacial Film and Zeta potential on Oil-inwater Emulsion Stability[J]. Chinese Journal of Applied Chemistry, ;2007, 24(6): 623-627. shu

Effects of Strength of Interfacial Film and Zeta potential on Oil-inwater Emulsion Stability

1.
Enhanced Oil Recovery Research Center in China University of Petroleum, Beijing 102249

Corresponding author: XU Ming-Jin,
Received Date: 3 October 2006
Available Online: 8 February 2007
Fund Project: 国家"九七三"项目(2005cb221300)资助 (2005cb221300)

The effects of interfacial film's strength and Zeta potential on the stability of O/W emulsion have been investigated by measuring the interfacial shear viscosity,zeta potential and emulsion stability of a system with surfactant,polymer and kerosene.In the system of kerosene and OPE-100 with polymer 3530S or its degradation polymer,the maximum of interfacial shear viscosity is more than 0.1 mN/m;the zeta potential is -18.4 mV.The stability of the emulsion is high.The results show that the stability of the O/W emulsion is mainly affected by both the strength of the interfacial film and the zeta potential of the oil droplets.The higher the interfacial film's strength and the zeta potential are,the higher the stability of the O/W emulsion is.At the same level of interfacial film's strength,the stability of the emulsion is dominated by the zeta potential.In this case,the stability of the O/W emulsion is enhanced by electric double layer.On the other hand,interfacial film's strength plays an important role in keeping the stability of the emulsion at the same level of zeta potential.The study also shows that the interfacial shear viscosity,zeta potential and stability of the emulsion are decreased after the polymer have been degradated both mechniacally and thermochamically.
- interfacial shear viscosity,
- zeta potential,
- polymer,
- degradation,
- emulsion
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沈阳化工大学材料科学与工程学院沈阳 110142

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Effects of Strength of Interfacial Film and Zeta potential on Oil-inwater Emulsion Stability

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com