Wear-resistant super-hydrophilic/underwater super-oleophobic leather collagen fiber membrane as well as preparation and application thereof
The invention belongs to the technical field of leather collagen fiber membranes, and particularly relates to a wear-resistant super-hydrophilic/underwater super-oleophobic leather collagen fiber membrane material with charge demulsification performance and a preparation method and application there...
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Main Authors | , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
28.03.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The invention belongs to the technical field of leather collagen fiber membranes, and particularly relates to a wear-resistant super-hydrophilic/underwater super-oleophobic leather collagen fiber membrane material with charge demulsification performance and a preparation method and application thereof. Macromolecules with strong positive charges are grafted to leather collagen fiber membrane molecules with side chains containing rich functional groups such as carboxyl-COOH, amino-NH2, amide-CO-NH-and hydroxyl-OH through a Schiff base reaction, then after amination treatment is conducted on the leather collagen fiber membrane, butyl titanate is added, and the super-hydrophilic performance of the membrane is enhanced in a mode of in-situ growth of TiO2. The membrane separation flux is improved. The prepared wear-resistant super-hydrophilic/underwater super-oleophobic leather collagen fiber membrane with the charge demulsification performance is used for efficient separation of anionic O/W emulsion, has the adva |
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Bibliography: | Application Number: CN202211469723 |