Pore formation of Polyurethane-based hollow fiber membrane prepared by melt-spinning
首发时间:2007-12-21
Abstract:A novel pore formation process consisting of drawing, water cooking and secondary drawing was used to obtain the melt spinning polyurethane / poly(vinylidene difluoride) / poly(ethylene glycol) (PU /PVDF/PEG)blend hollow fiber membranes. The pore formation of the membrane after each step was analyzed by observing the morphology of the pores. The permeability of the membranes was also studied by measuring the change in pure water flux (PWF) with pressure. Results show that the pore formation of the membrane was related not only to the miscibility and the rheological behavior, but also to the different thermo-shrinkage and mechanical properties of the components. The PU/PVDF/PEG blend hollow fibers with permeable pores having the property of pressure-responsibility were finally prepared after the process of drawing, water cooking and secondary drawing in turn.
keywords: PU/PVDF/PEG blend Hollow fiber membrane Pore formation
点击查看论文中文信息
Pore formation of Polyurethane-based hollow fiber membrane prepared by melt-spinning
摘要:A novel pore formation process consisting of drawing, water cooking and secondary drawing was used to obtain the melt spinning polyurethane / poly(vinylidene difluoride) / poly(ethylene glycol) (PU /PVDF/PEG)blend hollow fiber membranes. The pore formation of the membrane after each step was analyzed by observing the morphology of the pores. The permeability of the membranes was also studied by measuring the change in pure water flux (PWF) with pressure. Results show that the pore formation of the membrane was related not only to the miscibility and the rheological behavior, but also to the different thermo-shrinkage and mechanical properties of the components. The PU/PVDF/PEG blend hollow fibers with permeable pores having the property of pressure-responsibility were finally prepared after the process of drawing, water cooking and secondary drawing in turn.
关键词: PU/PVDF/PEG blend; Hollow fiber membrane; Pore formation
论文图表:
引用
No.1722916223611982****
同行评议
共计0人参与
勘误表
Pore formation of Polyurethane-based hollow fiber membrane prepared by melt-spinning
评论
全部评论0/1000