التفاصيل البيبلوغرافية
| العنوان: |
An experimental investigation of creaming phenomenon using a novel optical method: A case study of mineral oil-in-water emulsion. |
| المؤلفون: |
Ghanbari, Mehdi1 M1_G1@yahoo.com, Esmaeilzadeh, Feridun1, Binazadeh, Mojtaba1,2 |
| المصدر: |
Journal of Dispersion Science & Technology. 2018, Vol. 39 Issue 5, p634-643. 10p. 1 Color Photograph, 1 Black and White Photograph, 6 Diagrams, 5 Graphs. |
| مصطلحات موضوعية: |
*OIL pollution of water, *CREAMING (Chemistry), *TURBIDIMETRY, *PEPTIZATION, *DISPERSION (Chemistry) |
| مستخلص: |
The present study elucidates the creaming phenomenon of mineral oil-in-water macroemulsion using a new noninvasive method based on turbidimetry. Additionally, microscopic observation of the phenomenon is carried out to derive an in-depth understanding of the mechanisms. Accumulation of the particles in the emulsions under the formed cream is monitored during a relatively prolonged period of time. Backflow of continuous and dispersed phases in temporary channels is observed at the proximity of the cream. In addition to the backflow, a high traffic density of the dispersed particles and deflocculation of the cream are the main reasons for the accumulation of the dispersed phase particles and a temporary stability against creaming. The deflocculation hinders cream growth and increases the stratification of the cream. A low concentration zone of the dispersed phase with the width of ∼100 µm is observed under the cream. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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