کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9675782 | 1454106 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phenomenology of bubble nucleation in the solid-state nitrogen-polystyrene microcellular foams
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Experimental results on bubble nucleation in the solid-state polystyrene-nitrogen system are presented. It was found that the bubble nucleation occurs over a period of approximately 30Â s, and is not instantaneous as previously suggested. Over the range of nitrogen pressures explored, 4-14Â MPa, the cell nucleation density increased exponentially. However this increase was many orders of magnitude less than predicted by the homogeneous nucleation model, indicating that the classical theory may not be applicable to nucleation in thermoplastic polymers near the glass transition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 263, Issues 1â3, 1 August 2005, Pages 336-340
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 263, Issues 1â3, 1 August 2005, Pages 336-340
نویسندگان
Vipin Kumar,