کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
632711 1456004 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Solvent permeation behavior of PDMS grafted γ-alumina membranes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Solvent permeation behavior of PDMS grafted γ-alumina membranes
چکیده انگلیسی
Solvent permeability in polymer grafted ceramic membranes was described by incorporating solvent sorption terms into the Hagen-Poiseuille equation. Two types of ceramic membranes grafted with a relative short or long PDMS chain (n=10 and n=39), which differed in pore size, were examined. Sorption was measured “ex situ” using a pure PDMS phase. The results show that curves of flux versus transmembrane pressure were identical for all solvents studied if flux values are corrected for viscosity as well as sorption of the solvent. It is suggested that the permeable volume of the membrane reduces by swelling of the grafted organic moiety by the solvent used. This model provides a way to predict the performance of grafted porous membranes for solvent filtration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 495, 1 December 2015, Pages 216-225
نویسندگان
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