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Citation: SONG Rutong, GUO Lijuan, GUO Yongjun, FENG Rusen, ZHANG Xinmin, HU Jun, LI Huabing. Effect of Surfactants on the Viscosity of Nano-SiO₂ Fluids[J]. Chinese Journal of Applied Chemistry, ;2014, 31(9): 1083-1088. doi: 10.3724/SP.J.1095.2014.30623 shu

Effect of Surfactants on the Viscosity of Nano-SiO₂ Fluids

SONG Rutong ^a,b ,
GUO Lijuan ^a,c ,
GUO Yongjun ^a,b,d,, ,
FENG Rusen ^a,b ,
ZHANG Xinmin ^a,d ,
HU Jun ^d ,
LI Huabing ^d

1.
a State Key Laboratory of Geology and Production Engineering of Oil-gas Reservoir, Southwest Petroleum University, Chengdu 610500, China;
2.
b School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China;
3.
c Aramco Far East(Beijing) Business Services Company Limited, Beijing 100000, China;
4.
d Sichuan Guangya Polymer Chemical Company Limited, Chengdu 610500, China

Corresponding author: GUO Yongjun,
Received Date: 9 December 2013
Available Online: 20 January 2014
Fund Project: 国家科技重大专项(2011ZX05010-004)资助 (2011ZX05010-004)

The effect of surfactants on the viscosity of low concentration nano-SiO₂ fluids was studied. Specifically, we studied the effect of different carbon chain lengths of cationic and nonionic surfactants for the nano-SiO₂ fluids viscosity. The results show that the anionic surfactant of sodium dodecyl benzene sulfonate(SDBS) has a slight effect on the viscosity of nanofluids, it's relative viscosity value maintaining of about 1.23; while the cationic surfactants of tetradecyl trimethyl ammonium bromide(TTAB), cetyl trimethyl ammonium bromide(CTAB), octadecyl trimethyl ammonium bromide(OTAB), cetyl chloride pyridinium(CPC), nonionic surfactants of OP-8, OP-10, zwitterionic surfactants of DXS14, DXS18 have a greater influence on the viscosity, and it's maximum relative viscosity values can reach 3.42, 1.82 and 8.87, respectively, have a greater influence on the viscosity. At the same time, we found that the longer carbon chain in cationic surfactants, the greater the viscosity of nanofluids. The highest viscosity of nanofluids is obtained at the concentration of the surfactants near the critical micelle concentration value.
- nanofluid,
- surfactant,
- viscosity,
- adsorption
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Effect of Surfactants on the Viscosity of Nano-SiO₂ Fluids