Preparation of High Density Polyethylene (HDPE) Membranes via Thermally Induced Phase Separation
عنوان مقاله: Preparation of High Density Polyethylene (HDPE) Membranes via Thermally Induced Phase Separation
شناسه ملی مقاله: ICHEC07_197
منتشر شده در هفتمین کنگره ملی مهندسی شیمی در سال 1390
شناسه ملی مقاله: ICHEC07_197
منتشر شده در هفتمین کنگره ملی مهندسی شیمی در سال 1390
مشخصات نویسندگان مقاله:
ali akbari - Facultyof Chemical Engineering, Sahand University of Technology, Tabriz, Iran . Membrane Technology Research Center, Sahand University of Technology, Tabriz, Iran
Reza Yegani - Facultyof Chemical Engineering, Sahand University of Technology, Tabriz, Iran . Membrane Technology Research Center, Sahand University of Technology, Tabriz, Iran
maryam alikhani - Facultyof Chemical Engineering, Sahand University of Technology, Tabriz, Iran . Membrane Technology Research Center, Sahand University of Technology, Tabriz, Iran
خلاصه مقاله:
ali akbari - Facultyof Chemical Engineering, Sahand University of Technology, Tabriz, Iran . Membrane Technology Research Center, Sahand University of Technology, Tabriz, Iran
Reza Yegani - Facultyof Chemical Engineering, Sahand University of Technology, Tabriz, Iran . Membrane Technology Research Center, Sahand University of Technology, Tabriz, Iran
maryam alikhani - Facultyof Chemical Engineering, Sahand University of Technology, Tabriz, Iran . Membrane Technology Research Center, Sahand University of Technology, Tabriz, Iran
Microporous high density polyethylene (HDPE) flat plat membranes were prepared via thermally induced phase separation (TIPS) method. Paraffin oil and acetone were used as diluent and extractant in the preparation of membranes, respectively. Scanning electron microscopy was used to investigate the morphology of resulted membranes. Effects of polymer concentration, membrane and water bath temperature on membrane morphology, porosity and mechanical strength were investigated. The SEM images show that HDPE-paraffin oil system has leafy structure. Increasing the polymer concentration resulted in decreasing the membrane porosity and increasing the membrane mechanical strength as well. The resulted membranes illustrated that the slower cooling rate or higher water bath temperature allows greater growth of leaves like membrane structure. So higher porosity can be obtainted in higher water bath temperatures. Also higher mechanical strength was obtained at lower water bath temperatures as well as higher concentration, while an inverse trend was observed for the membrane porosity.
کلمات کلیدی: HDPE,TIPS method ,flat membrane,leafy structure
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/340950/