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- W2387788454 abstract "The composite charge-mosaic membranes, which are permeable to salts but meanwhile not to non-electrolytes with low molecule weight, were prepared by interfacial polymerization (IP). The polyethersulfone (PES) hollow fiber membrane was used as the support membrane, 2,5-diaminobenzene sulfonic acid and polyethylenimine (PEI) as aqueous phase monomer of IP reaction, and a mixture of trimesoyl chloride (TMC) and 4-(chloromethyl) benzoyl chloride as organic monomer. Then the trimethylamine solution was applied to modify the IP layer through a quaternization reaction. The characterizations of the composite mosaic membranes were carried out through permeation experiments of different inorganic salts and dyes as well as by using AFM, SEM and Mercury Injection Apparatus. The experimental results show that the characteristics of the membrane are greatly influenced by IP time, concentrations of monomers and operating pressure. With the increases of IP time, the membrane flux will be decreased and the membrane retention will be increased. With the concentration of monomers increase, both the membrane flux and the membrane retention for salts will be decreased. However, when the operating pressure is increased, both the membrane flux and the membrane retention will be increased. Under the operating pressure of 0.2MPa, the membrane retentions to the inorganic salts are less than 20%,while to Xylenol orange and Methyl green,more than 95%." @default.
- W2387788454 created "2016-06-24" @default.
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- W2387788454 date "2005-01-01" @default.
- W2387788454 modified "2023-09-26" @default.
- W2387788454 title "Preparation of Composite Charge-Mosaic Membrane by Interfacial Polymerization" @default.
- W2387788454 hasPublicationYear "2005" @default.
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