کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
603190 | 880182 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Amphiphilic nanostructures in foam films
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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: Amphiphilic nanostructures in foam films Amphiphilic nanostructures in foam films](/preview/png/603190.png)
چکیده انگلیسی
The revised articles outline the potential of microscopic foam film instrumentation as an investigation tool in studying the amphiphilic nanostructures in aqueous surfactant solutions. The impact of amphiphilic nanostructures on the drainage behaviour and stability of foam films is traced for surfactant solutions of concentrations orders of magnitude above CMC (micellar solutions) to about two orders of magnitude lower than CMC (premicellar solutions). It is found that in the high-concentration domain the micellar entities affect mainly the stability of the films. In the low-concentration domain, the presence of smaller crumbly aggregates (premicelles), plays a significant role for the kinetic stability of the films. Through the mechanism of Marangoni effect, an enhanced coupling of the specific film hydrodynamics and the mass transfer of the surfactant is obtained. The result is a sharp rise in the kinetic stability of the foam films. The importance of this trend of research is related to providing better insight into the self-assembling phenomena and into the factors that determine the drainage and the stability of thin liquid films. The results have potential and actual applications in food, cosmetic and pharmaceutical industries, as well as in biology and medicine.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Opinion in Colloid & Interface Science - Volume 13, Issue 3, June 2008, Pages 120-127
Journal: Current Opinion in Colloid & Interface Science - Volume 13, Issue 3, June 2008, Pages 120-127
نویسندگان
Elena Mileva, Dotchi Exerowa,