کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9680763 | 1455504 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and characterization of polyethersulfone microfiltration membranes by a 2-methoxyethanol additive
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The effect of 2-methoxy ethanol (2-ME) nonsolvent as an additive in a casting solution on the morphology of microfiltration membranes was studied. Microfiltration polymer membranes were prepared by using polyethersulfone (PES)/ N-methyl-2-pyrrolidone (NMP)/ 2-ME casting solution and water coagulant. The two successive processes of the vapor-induce phase inversion (VIPI) and the nonsolvent-induced phase inversion (NIPI), which followed VIPI, were used to prepare the membranes. The pore size and the morphology were changed by the nonsolvent additive and the exposure time at the relative humidity of 74%. The pore size was then measured by a capillary flow porometer. By increasing the concentration of the nonsolvent additive in the casting solution, the morphology of the prepared membranes were changed from a macrovoid structure to a sponge structure. Also relative humidity, exposure time, the change of the concentration of the additive, the viscosity of casting solution and the temperature of coagulation bath had a pronounced effect on the pore size and the porosity of the membrane.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 186, Issues 1â3, 30 December 2005, Pages 1-10
Journal: Desalination - Volume 186, Issues 1â3, 30 December 2005, Pages 1-10
نویسندگان
Se-Jong Shin, Jong-Pyo Kim, Hee-Jin Kim, Jae-Hong Jeon, Byoung-Ryul Min,