Modification of porous stainless steel hollow fibers by adding TiO2, ZrO2 and SiO2 nano-particles

被引:0
作者
Ming Wang
Qi-feng Zhong
Zhen-Liang Xu
Xiao-hua Ma
机构
[1] East China University of Science and Technology (ECUST),State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center
来源
Journal of Porous Materials | 2016年 / 23卷
关键词
Stainless steel hollow fiber; Stainless steel powder; Nano-particles; Modification;
D O I
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中图分类号
学科分类号
摘要
Using 316L stainless steel powder (SSP) with a nominal particle size of 25 μm, porous stainless steel hollow fibers (SSHFs) have been prepared via dry-wet spinning of a particle-loaded casting solution based on non-solvent induced phase inversion, followed by temperature programming sintering. The morphology and performances were characterized by the maximum/mean pore size, SEM, porosity, density, shrinkage, pure water flux and mechanical strength. Subsequently, SSHFs were modified by adding TiO2, ZrO2 and SiO2 nano-particles for the first time. The morphology of SSHFs relied on not only the SSP contents, but also the contents of TiO2, ZrO2 and SiO2 nano-particles. The corresponding results demonstrated that SSHFs with TiO2 nano-particles possessed excellent properties, especially for mechanical strength having a more than 100 % increase and a maximum pore size of 4.5 μm. What’s more, nano-particles also reduced the defects of SSHFs’ structure, which could be observed from SEM images.
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页码:773 / 782
页数:9
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