Effect of nonsolvent additives on PES ultrafiltration membrane pore structure
Jun Xiang
College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Search for more papers by this authorXinxin Hua
College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Search for more papers by this authorXingfeng Dong
College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Search for more papers by this authorPenggao Cheng
College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Search for more papers by this authorCorresponding Author
Lei Zhang
College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Correspondence to: L. Zhang (E-mail: [email protected]), and N. Tang (E-mail: [email protected])Search for more papers by this authorWei Du
College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Search for more papers by this authorCorresponding Author
Na Tang
College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Correspondence to: L. Zhang (E-mail: [email protected]), and N. Tang (E-mail: [email protected])Search for more papers by this authorJun Xiang
College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Search for more papers by this authorXinxin Hua
College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Search for more papers by this authorXingfeng Dong
College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Search for more papers by this authorPenggao Cheng
College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Search for more papers by this authorCorresponding Author
Lei Zhang
College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Correspondence to: L. Zhang (E-mail: [email protected]), and N. Tang (E-mail: [email protected])Search for more papers by this authorWei Du
College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Search for more papers by this authorCorresponding Author
Na Tang
College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science & Technology, Tianjin 300457, People's Republic of China
Correspondence to: L. Zhang (E-mail: [email protected]), and N. Tang (E-mail: [email protected])Search for more papers by this authorABSTRACT
Different nonsolvent additives, namely, diethylene glycol, n-butyl alcohol (NBA), and ethylene glycol monomethyl ether, were added into the casting solution (polyethersulfone/dimethylformamide/lithium chloride) to prepare ultrafiltration (UF) membrane via phase inversion. The effects of different additives and their concentration on the pore structure of the prepared UF membrane were studied. The cross-sectional morphology of the membrane was observed via scanning electron microscopy. The addition of nonsolvent additives improved the large-cavity structure of the membrane. When the additive was low-content NBA (1–3 wt %), the membrane pore structure transformed from large-cavity structure to fully sponge-like structure. When the content of additive NBA was 3 wt %, the flux of the prepared UF membrane was 130.45 L (m−2 h−1), the rejection of PEG20000 was 95.54% and the flux remained high at 4 bar in long-term stability test. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47525.
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