Method for preparing anti-pollution composite nanofiltration membrane from alcohol compound
The invention discloses a method for preparing an anti-pollution composite nanofiltration membrane from an alcohol compound, belongs to the technical field of membrane separation, and solves the problems that a polyamide nanofiltration membrane is poor in pollution resistance and a polyester nanofil...
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Main Authors | , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
12.04.2022
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a method for preparing an anti-pollution composite nanofiltration membrane from an alcohol compound, belongs to the technical field of membrane separation, and solves the problems that a polyamide nanofiltration membrane is poor in pollution resistance and a polyester nanofiltration membrane separation layer is low in crosslinking degree. The method for preparing the anti-pollution composite nanofiltration membrane from the alcohol compound comprises the following steps: preparing a porous support membrane; the method comprises the following steps: carrying out interfacial polymerization reaction on a porous support membrane by taking an alcohol compound as a water-phase monomer, polyacyl chloride as an oil-phase monomer and sodium hydroxide or potassium hydroxide as a catalyst; and performing heat treatment after interfacial polymerization to obtain the polyester or polyesteramide composite nanofiltration membrane. According to the preparation method disclosed by the invention, small- |
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Bibliography: | Application Number: CN202210143915 |