کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
597728 | 1454072 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Drying of meso- and macroporous gels—Length change and drying dynamics
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
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چکیده انگلیسی
Ambient pressure drying of meso- and macroporous gels with high porosity and low stiffness of their backbone induces significant shrinkage of the sample that is accompanied by the development of cracks, if the drying rate and conditions are not well adjusted. We investigated the drying behavior of organic gels with a porosity of about 80–85% with a setup that allows in situ monitoring of the linear length change of the sample. The parameters varied were the purge flow rate, pore liquid, pore size of the gel and its aging time at room temperature prior to drying. The dried samples were characterized with respect to their density, specific surface area and Young's modulus.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 300, Issues 1–2, 1 June 2007, Pages 211–215
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 300, Issues 1–2, 1 June 2007, Pages 211–215
نویسندگان
G. Reichenauer, T. Pfrang, M. Hofmann,