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Efficient antifouling and hydrophilic polyethersulfone ultrafiltration membrane and preparation method thereof
Efficient antifouling and hydrophilic polyethersulfone ultrafiltration membrane and preparation method thereof
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机译:高效防污亲水聚醚砜超滤膜及其制备方法
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摘要
A preparation method of an antifouling and hydrophilic polyethersulfone ultrafiltration membrane includes through the 60Co-γ radiation grafting chemical modification method, evenly distributing an ionic liquid on a surface of a polyethersulfone material, wherein the ionic liquid containing unsaturated bonds is connected with the polyethersulfone material through chemical bonds, and then obtaining an asymmetric porous membrane by the immersion-precipitation phase transformation method, and finally performing Soxhlet extraction on the porous membrane, so as to migrate the grafted ionic liquid from an interior of the porous membrane to a surface of the porous membrane to be enriched, so that the adsorption and antibacterial properties of the porous membrane are improved. A mass ratio of the ionic liquid to the polyethersulfone material is in a range of (2-11):100. The ultrafiltration membrane is an asymmetric porous membrane, and has excellent antifouling properties, good pure water flux and a good BSA retention rate.
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