کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
687256 1460127 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Interface morphologies in liquid/liquid dewetting
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Interface morphologies in liquid/liquid dewetting
چکیده انگلیسی

The dynamics and morphology of a liquid polystyrene (PS) film with a thickness on the scale of a hundred nanometer dewetting from a liquid polymethylmethacrylate (PMMA) film is investigated experimentally and theoretically. The polymers considered here are both below their entanglement lengths and have negligible elastic properties. A theoretical model based on viscous Newtonian flow for both polymers is set up from which a system of coupled lubrication equations is derived and solved numerically. A direct comparison of the numerical solution with the experimental findings for the characteristic signatures of the cross-sections of liquid/air and liquid/liquid phase boundaries of the dewetting rims as well as the dewetting rates is performed and discussed for various viscosity ratios of the PS and PMMA layers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering and Processing: Process Intensification - Volume 50, Issues 5–6, May 2011, Pages 531–536
نویسندگان
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