کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9675849 | 1454108 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Film tension and dilational film rheology of a single foam bubble
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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: Film tension and dilational film rheology of a single foam bubble Film tension and dilational film rheology of a single foam bubble](/preview/png/9675849.png)
چکیده انگلیسی
The balance of normal and tangential forces in the liquid film of a foam bubble yields equations which describe the shape of bubbles under gravity conditions and the variation of local characteristics of the film, such as thickness, tension, surfactant concentration, elasticity, etc. The conservation of surfactant molecules within the local elements in the film is taken into account. Upon stretching of non-uniform films the local expansion is larger in parts of smaller local elasticity. Therefore the stability of non-uniform films depends on their local characteristics. The rheological properties of liquid films are very sensitive to the parameters of the surface equation of state and adsorption isotherm. In particular, the intrinsic (2D) compressibility of adsorption layers can influence the properties and, therefore, the stability of liquid films.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 261, Issues 1â3, 1 July 2005, Pages 115-121
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 261, Issues 1â3, 1 July 2005, Pages 115-121
نویسندگان
V.I. Kovalchuk, A.V. Makievski, J. Krägel, P. Pandolfini, G. Loglio, L. Liggieri, F. Ravera, R. Miller,