کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
661318 1458169 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of droplet size and solute concentration on drying process of polymer solution droplets deposited on homogeneous surfaces
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Effects of droplet size and solute concentration on drying process of polymer solution droplets deposited on homogeneous surfaces
چکیده انگلیسی

An experimental setup is constructed to investigate the drying process of a micro-scale polymer solution droplet deposited on homogeneous surfaces. The contact angle during evaporation does not agree with the contact angle hysteresis measured using an inclined plate method due to the size effect. The average polymer concentration at which the contact line is pinned is independent of the initial solution concentration. This fact reveals that the free convection plays an impotent role before pinning. The pinning time, or the receding distance, is moreover found to be a key factor that dominates the shape and dimensions of the polymer films.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 49, Issues 19–20, September 2006, Pages 3561–3567
نویسندگان
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