NDLI: Study on Stabilizing Emulsion by Mixing Nano-silica and Cationic Surfactants with Different Chain Length

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Study on Stabilizing Emulsion by Mixing Nano-silica and Cationic Surfactants with Different Chain Length

Content Provider	Scilit
Author	Huang, Yongping Wang, Ruoyu Wu, Yining Gao, Zhibin Dai, Caili
Copyright Year	2019
Description	Journal: Iop Conference Series: Earth and Environmental Science Considering the interaction between the electronegative nano-silica (NS) and cationic surfactant, this paper aims at studying the effect of NS modified by cationic surfactants with different chain length on emulsion behavior. These effects on emulsion behavior were investigated at two aspects: emulsion stability and rheological characteristics. Experimental results indicated that flocculation of nano-silica becomes easier with longer alkane chains. While the chain length increases within the studied concentration range, the threshold concentration of surfactants at which the intermediate phase emulsion appears decreases. For NS and DETAB together in dispersion, no phase inversion appeared. The NS surface hydrophilic-lipophilic balance was changed due to the enwind of the alkane chain. Longer alkane chain adsorbs on the NS surface and reaches saturation at the same surfactant concentrations more easily due to the different enwind degrees of alkane chains. It is suggested that the different surfactant chains had different enwind degrees on the liquid-liquid interface. Rheological experiments show that the emulsion has shear dilution and elasticity.
Related Links	https://iopscience.iop.org/article/10.1088/1755-1315/218/1/012071/pdf
ISSN	17551307
e-ISSN	17551315
DOI	10.1088/1755-1315/218/1/012071
Journal	Iop Conference Series: Earth and Environmental Science
Issue Number	1
Volume Number	218
Language	English
Publisher	IOP Publishing
Publisher Date	2019-02-23
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Earth and Environmental Science Petroleum Engineering Different Chain Different Surfactant
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Physics and Astronomy Environmental Science

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