کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10378235 | 880751 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of nonwetting on the aggregation dynamics of micronic solid particles in a turbulent medium
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influence of nonwetting on the aggregation dynamics of micronic solid particles in a turbulent medium Influence of nonwetting on the aggregation dynamics of micronic solid particles in a turbulent medium](/preview/png/10378235.png)
چکیده انگلیسی
The aim of this work was to determine and to interpret the influence of nonwetting on the aggregation dynamics of micronic solid particles in a turbulent medium. Two silica granular samples were studied: one was naturally hydrophilic; the other was made hydrophobic. Aggregation in an aqueous ethanol solution was followed by in situ turbidimetry. The influence of stirring rate and deaeration was determined. Aggregates of hydrophilic particles were small and fragile, whereas aggregates of hydrophobic particles were large and solid. Moreover, they differred greatly in optical properties. Within the proposed approach, different features of the aggregate morphology were identified: fractal dimension, maximum size, and gas content of the hydrophobic clusters. These elements are taken into account in the models of aggregation dynamics proposed here.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 284, Issue 2, 15 April 2005, Pages 548-559
Journal: Journal of Colloid and Interface Science - Volume 284, Issue 2, 15 April 2005, Pages 548-559
نویسندگان
Frédéric Gruy, Michel Cournil, Patrick Cugniet,