کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
594455 1453978 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rheological behavior and microstructure of an anionic surfactant micelle solution with pyroelectric nanoparticle
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Rheological behavior and microstructure of an anionic surfactant micelle solution with pyroelectric nanoparticle
چکیده انگلیسی

The rheological behavior and microstructure of anionic fatty acid methyl ester sulfonate sodium (MES) surfactant micelle solution with pyroelectric nanoparticle were investigated by dynamic light scattering (DLS), freeze-fracture transmission electron microscopy (FF-TEM) and rheological measurement. The formation of wormlike micelle due to salt addition was observed and the nanoparticle can accelerate the micelle growth and entanglement with each other. The effect of concentration of surfactant, added salt and pyroelectric barium titanate (BaTiO3) nanoparticle were investigated, respectively. The viscosity of MES micelle solution increases with the temperature rise within a certain range because of the pyroelectric effect of nanoparticles. At low temperature (∼25 °C), the sample with 0.6 wt.% nanoparticle behaves like an elastic gel with an infinite relaxation time and viscosity. The change of microstructure and rheological properties for MES viscoelastic micelle solutions may be attributed to the electrostatic interaction and pseudo-crosslinking between micelles and nanoparticles. MES viscoelastic micelle solution can retain high viscosity at elevated temperature due to nanoparticle addition and has very attractive for reservoir stimulation and enhanced-oil-recovery in higher temperature reservoirs.

The rheological behavior and microstructure of anionic MES surfactant micelle solution with pyroelectric nanoparticle were studied. There is an increasing in shear viscosity within a temperature range for MES micelle solution with different pyroelectric nanoparticle concentration, □: 0; ○: 0.3 wt.%; ▵: 0.6 wt.%.Figure optionsDownload as PowerPoint slideHighlights
► An anionic, biodegradable surfactant MES can be used as a clean thickener.
► Nanoparticle enables to increase viscoelasticity of MES micelle solution.
► Pyroelectric effect of nanoparticle increases thermal stability of MES micelle solution.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 395, 5 February 2012, Pages 267–275
نویسندگان
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