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Effect of stainless steel powder (SSP) concentration on the performance of stainless steel hollow fiber membrane

Authors： ZHONG Qifeng, WANG Ming, XU Zhenliang, MA Xiaohua

Units： State Key Laboratory of Chemical Engineering, Shanghai Key Laboratory of Multiphase Structural Materials, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology, Shanghai 200237, China

KeyWords： Hollow fiber; Stainless steel membrane; Adjust; Mechanical strength

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2016,36(2):76-80

Abstract：

Stainless steel hollow fiber membranes were prepared by using 25μm 316L stainless steel powder (SSP) as raw material, polyacrylonitrile(PAN) as polymer binder, N,N-dimethylacetamide (DMAc) as solvent and poly (vinyl pyrrolidone) (PVP) as additive. This paper discussed that the SSP content effected on the properties of stainless steel hollow fiber membranes such as shrinkage, micro-structure, density, porosity, the maximum pore size, mean pore size, pure water flux and mechanical strength. The properties of stainless steel hollow fiber membranes were characterized by bubble point, pure water flux, mechanical strength and other test methods. The experimental results showed that when the SSP concentration was 75wt%, the stainless steel hollow fiber membranes had better property. The maximum pore size, mean pore size, mechanical strength and pure water flux of 75% stainless steel hollow fiber membranes were 15.2 μm, 4.16 μm, 49.4 MPa and 35000 L?m-2?h-1?bar-1 respectively.

Funds：

国家自然科学基金（21406060、21176067和20076009）、上海市英才扬帆计划（14YF1404800）、化学工程联合国家重点实验室开放课题（SKL-ChE-14C03）。

AuthorIntro：

作者简介：忠琪丰（1989—），男，上海人，硕士研究生，主要从无机膜制备的研究工作。通讯联系人：Email：xiaohuama@ecust.edu.cn

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