화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.31, No.8, 1438-1443, August, 2014
DOI10.1007/s11814-014-0060-0  Export Citation
Effect of polymer and additive on the structure and property of porous stainless steel hollow fiber
Xiao-Hua Ma, Yu Bai, Yue Cao, and Zhen-Liang Xu†
  • State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab., Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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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 dry-wet 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 3×10^(5) L·m-2·h-1·Pa-1). A more dense structure could be obtained by adding additive polyvinylpyrrolidone (PVP) as viscosity enhancer.
Keywords:Porous Stainless Steel Hollow Fiber;Structure;Property;Polymer Concentration
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