Authors: XiaoHua Ma Yu Bai Yue Cao ZhenLiang Xu
Publish Date: 2014/04/11
Volume: 31, Issue: 8, Pages: 1438-1443
Abstract
Porous stainless steel hollow fiber has been widely used due to its high mechanical strength excellent thermal conductivity and good sealing properties compared with other porous supports We successfully prepared porous stainless steel hollow fibers using polyacrylonitrile PAN as polymer via drywet spinning followed by sintering through temperature programming method The PAN concentration had an obvious impact on the structure and property of porous stainless steel hollow fiber even if it would be burned off during sintering The results showed that the morphology could be tuned by adjusting the concentration of PAN With increasing PAN concentration in casting solution for spinning the viscosity was increased dramatically resulting in much compact structures with high pure water flux higher than 3×105 L·m−2·h−1·Pa−1 A more dense structure could be obtained by adding additive polyvinylpyrrolidone PVP as viscosity enhancer
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