膜科学与技术

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Effects of Spinning Membrane Parameters on the Structure and Properties of PVC-CA Hollow Fiber Membrane

Authors： CAI Xinyu, ZHANG Kai, WANG Lu, CHENG Liang, WEI Yongming, YANG hu, MA Xiaohua, XU Zhenliang

Units： Joint State Key Laboratory of Chemical Engineering, Chemical Engineering Research Institute of East China University of Science and Technology, Membrane Science and Engineering R&D Center, Shanghai 200237，China

KeyWords： polyvinyl chloride (PVC); hollow fiber membrane; NIPS method; membrane structure

ClassificationCode：TQ028

year,volume(issue):pagination： 2024,44(2):37-44

Abstract：

The PVC-CA hollow fiber membranes were prepared by the non-solvent-induced phase separation (NIPS) method using polyvinyl chloride (PVC) and cellulose acetate (CA) as membrane materials and by changing the spinning parameters. The characterization results showed that the hollow fiber membranes had a dense skin layer, a cross-sectional structure of sponge pores and finger pores, a pure water flux of 314 L/(m2.h), a BSA retention rate of 95.0%, and a fracture strength of 22 MPa. In addition, the fine hollow fiber membranes could operate stably under 0.6 MPa pressure and could remove 49.30% of organic matter from tap water.

Funds：

国家自然科学基金（22278132，21978082）

AuthorIntro：

蔡新宇（1997-），男，甘肃省白银市人，硕士研究生，研究方向为膜制备

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