کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5186169 1381097 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Formation of functional polyethersulfone electrospun membrane for water purification by mixed solvent and oxidation processes
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Formation of functional polyethersulfone electrospun membrane for water purification by mixed solvent and oxidation processes
چکیده انگلیسی

Most water-based filtration applications of electrospun nanofibrous membranes require the substrate to possess suitable strength, wettability and permeability, where the size, inter-fiber adhesion and hydrophilicity of electrospun nanofiber must be carefully controlled in order to meet these criteria. In this study, we demonstrate the fabrication of high quality polyethersulfone (PES) nanofibrous membranes that are particularly useful for water purification. Two treatments were illustrated that can significantly improve the mechanical property and hydrophilicity of the PES membrane without compromising its porosity and water permeance. The first treatment involves the use of mixed solvents (DMF/NMP), containing a high vapor pressure component (NMP), where the mechanical properties (e.g. modulus and strength) of the membrane are improved by solvent-induced fusion of inter-fiber junction points. The second method involves the short time oxidation treatment with a strong oxidant (ammonium persulfate), where the hydrophilicity of the membrane is greatly increased.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 50, Issue 13, 19 June 2009, Pages 2893-2899
نویسندگان
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