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A kind of oil-water separation material and using method thereof

An oil-water separation and matrix technology, applied in separation methods, liquid separation, chemical instruments and methods, etc., can solve the problems of increasing system volume, troublesome use, limited absorption and flux, etc., and achieves wide raw material sources, simple preparation process, The effect of controllable coating thickness

Active Publication Date: 2018-01-23
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN201510696202 (a method for preparing super-hydrophobic and super-oleophilic mesh material based on one-component polyurethane) discloses the preparation of super-hydrophobic and super-oleophilic mesh by dip-coating method. Although the mesh has hydrophobic properties, oil-water When separating, it is necessary to use tools and equipment to support the mesh, which is cumbersome to use and increases the volume of the system. In addition, the small molecules on the mesh coating are easily lost and the surface structure is easily damaged, so the durability of the mesh is not high. Good for long-term use
Due to the limited oil absorption and organic solvent flux, and the insufficient mechanical strength of the sponge, its processing capacity and separation efficiency are difficult to meet the requirements of engineering applications.

Method used

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  • A kind of oil-water separation material and using method thereof
  • A kind of oil-water separation material and using method thereof
  • A kind of oil-water separation material and using method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. Material preparation

[0034] (1) Surface pretreatment of foamed nickel:

[0035] After the surface of the foamed nickel container is treated with concentrated sulfuric acid and concentrated nitric acid in a volume ratio of 3:1, it is placed in an ethanol solution for ultrasonic cleaning to remove impurities such as grease and dust on the surface. The mass concentration of the ethanol solution is 75%. Take it out and take it out naturally. Dry

[0036] (2) Preparation of the emulsion to form the coating:

[0037] ① 10 parts of PU resin, 20 parts of FEP resin, 30 parts of PTFE, 20 parts of PVDF, 8 parts of talc and 0.8 parts of silane coupling agent are ground by a ball mill for 4 hours;

[0038] ②Add the above 80 parts of modified resin, 2 parts of PDMS, and 18 parts of carbon nanotubes to 100 parts of ethanol solvent and put them in an ultrasonic instrument for ultrasonic treatment until the powder is completely dispersed in the solvent;

[0039] (3) Spray emulsion on the sur...

Embodiment 2

[0063] 1. Material preparation

[0064] (1) Surface pretreatment of foamed copper:

[0065] The surface of the foamed copper is quickly treated by sandblasting and then placed in an ethanol solution for ultrasonic cleaning to remove impurities such as grease and dust on the surface. The mass concentration of the ethanol solution is 75%, take it out and dry it naturally;

[0066] (2) Preparation of the emulsion to form the coating:

[0067] ① Grind 10 parts of PU resin, 20 parts of FEP resin, 30 parts of PTFE, 20 parts of PVDF, 8 parts of talc and 2.4 parts of silane coupling agent through a ball mill for 4 hours;

[0068] ②The above-mentioned 80 parts of modified resin, 2 parts of PDMS, 18 parts of carbon nanotubes are added with 100 parts of ethanol solvent and then placed in an ultrasonic instrument for ultrasonic treatment until the powder is completely dispersed in the solvent;

[0069] (3) Spray emulsion on the surface of foamed copper:

[0070] Use a spray gun with a nozzle diameter...

Embodiment 3

[0080] 1. Material preparation

[0081] (1) Surface pretreatment of foamed titanium:

[0082] Use 7mol / L nitric acid to treat the surface of the foamed nickel and put it in an ethanol solution for ultrasonic cleaning to remove impurities such as grease and dust on the surface. The mass concentration of the ethanol solution is 75%, take it out and dry it naturally;

[0083] (2) Preparation of the emulsion to form the coating:

[0084] ① Grind 28 parts of PU resin, 20 parts of PPS resin, 25 parts of PTFE, 25 parts of PVDF resin, 9.8 parts of molecular sieve and 1 part of silane coupling agent through a ball mill for 6 hours, and then make them uniformly dispersed in the emulsion;

[0085] ②The above-mentioned 98 parts of modified resin, 0.01 part of PDMS, 1.99 parts of carbon nanotubes are added with 80 parts of n-hexane solvent and put into an ultrasonic instrument for ultrasonic treatment until the powder is completely dispersed in the solvent;

[0086] (3) Spray emulsion on the foamed t...

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Abstract

The invention relates to a novel oil-water separation material and its application method, which solves the problems of insufficient durability of existing materials and the like. Specifically, it consists of a substrate and a coating attached to the surface of the substrate. The substrate material is one of nickel foam, copper foam or titanium foam; the emulsion forming the surface coating of the substrate is composed of modified resin, organic solvent, low Composed of surface energy substances and nanoparticles; the new oil-water separation material is made into a container with a connection port, and the connection port of the container is connected to the inlet of the pump to establish an oil (organic) water separation system. The oil (organic matter) water separation system maintains good hydrophobicity within 7 days of continuous separation, the separation efficiency is very high, and the separation workload can reach more than 10,000 times its own weight.

Description

Technical field [0001] The invention relates to an oil-water separation material and a method of using the material. Background technique [0002] Super-hydrophobic and super-lipophilic materials have different wetting properties for oil and water, and can completely separate the mixture of water and oil, so they can be used in oil-water separation systems. At present, the super-hydrophobic and super-lipophilic materials used in the oil-water separation system mainly include sponge, stainless steel mesh, fiber cloth, etc. Chinese patent CN201510696202 (a method for preparing super-hydrophobic and super-oleophilic mesh material based on one-component polyurethane) discloses the use of a dip coating method to prepare super-hydrophobic and super-lipophilic mesh cloth. Although the mesh cloth has hydrophobic properties, it is When separating, it is necessary to use tools and equipment to support the mesh, which is troublesome to use and increases the system volume. In addition, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D17/022C02F1/40
CPCB01D17/02C02F1/40
Inventor 汪怀远胡玥朱艳吉李洪伟王池嘉
Owner NORTHEAST GASOLINEEUM UNIV
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