Super-hydrophobic sponge, preparation method thereof and application of super-hydrophobic sponge in polluted underground water
By modifying melamine sponge, using composite silane coupling agent and PDMS modification technology, the problem of low separation efficiency of oil and water mixture in industrial wastewater is solved, and efficient and durable oil and water separation effect is achieved.
CN119751969APending Publication Date: 2025-04-04NANJING UNIV +1
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Patent Information
- Application Number
- CN202411872989.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-04-04
AI Technical Summary
Technical Problem
The prior art is difficult to effectively treat industrial wastewater with complex components and variable water quality, especially the separation of oil and water mixtures, which is inefficient and has high operating costs.
Method used
Modified melamine sponge is used as a superhydrophobic material. The hydrophobic properties of the sponge are improved by coating nano SiO2 particles with a composite silane coupling agent on the surface of the sponge, and their chemical and physical stability are enhanced through PDMS stability modification.
Benefits of technology
It achieves efficient oil-water separation, improves separation efficiency and material durability, and meets the demand for stable operation under various environmental conditions.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a super-hydrophobic sponge and a preparation method and application thereof in polluted groundwater, the super-hydrophobic sponge is obtained by taking a melamine sponge as a matrix and modifying nano SiO2 particles and the melamine sponge by using a composite silane coupling agent in an organic solvent; wherein the composite silane coupling agent is composed of methyl trichlorosilane and 3-aminopropyltriethoxysilane, and the volume fraction of the methyl trichlorosilane in the organic solvent is 0.8%-1.2%, and the volume fraction of the 3-aminopropyltriethoxysilane in the organic solvent is 0.3%-0.8%; the concentration of the nano SiO2 particles in the organic solvent is 0.5 to 1 weight percent. The super-hydrophobic sponge disclosed by the invention has the advantages of high separation efficiency, good oil-water selectivity, simplicity in operation, oil recovery potential and the like.
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