Structure and Properties of Polyurethane/Polyvinylidene Difluoride Blending Hollow Fiber

被引:7
|
作者
胡晓宇
肖长发
安树林
王照旭
机构
[1] Key Laboratory of Hollow Fiber Membrane Materials and Membrane Process Ministry of Education Tianjin Polytechnic University
[2] Key Laboratory of Hollow Fiber Membrane Materials and Membrane Process Ministry of Education Tianjin Polytechnic University
[3] Tianjin 300160
关键词
PU/PVDF blend; hollow fiber membrane; interfacial micro-void; pressure-responsibility;
D O I
10.19884/j.1672-5220.2006.05.018
中图分类号
TS102.52 [];
学科分类号
082102 ;
摘要
Utilization of polyvinylidene difluoride, PVDF, as the disperse phase and thermal plastic polyurethane, PU, as the continuous phase, the PU/PVDF blend hollow fiber membranes with the property of pressure-responsibility, PR, was prepared by melt-spinning. For these hollow fibers, the formation of the interfacial micro-voids, IFM, and the spinability of the blend were analyzed. The pressure-responsibility was studied by measuring the changing of pure water flux, PWF, with the pressure, and the influence of drawing and heat-setting on the structure and pressure-responsibility of the membranes were also discussed.
引用
收藏
页码:76 / 79
页数:4
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