Super-hydrophobic wire mesh and preparation method thereof

A wire mesh and wire mesh carrier technology, applied in separation methods, chemical instruments and methods, liquid separation, etc., to achieve the effects of low preparation cost, good mechanical properties, and long life

Active Publication Date: 2017-02-22
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The object of the present invention is to aim at the defects currently used in oil-water separation materials, to provide a super-hydro...

Method used

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  • Super-hydrophobic wire mesh and preparation method thereof
  • Super-hydrophobic wire mesh and preparation method thereof
  • Super-hydrophobic wire mesh and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] (1) Cut the wire mesh into small pieces of 2*2cm, ultrasonically clean them with dichloromethane and water for 30 minutes, and then dry them in the air or place them in an oven at 80°C to dry.

[0065] (2) Configuration of piranha solution: prepare concentrated sulfuric acid and hydrogen peroxide at a volume ratio of 2:1, and slowly add hydrogen peroxide into concentrated sulfuric acid.

[0066] (3) Soak the cleaned and dried wire mesh in the piranha solution, let it stand for 30 minutes, and then wash it with deionized water.

[0067] (4) Configuration of silane coupling agent solution: Add 1.5g of KH-540 into 30ml of toluene solvent.

[0068] (5) Soak the cleaned and dried wire mesh in the silane coupling agent, soak it under magnetic stirring for 24 hours, take it out, wash it with deionized water three times after taking it out, and finally put it in a vacuum drying oven and dry it at 80°C two hours.

[0069] (6) Preparation of oil phase solution: 0.2 g of trimeso...

Embodiment 2

[0076] (1) Cut the wire mesh into small pieces of 2*2cm, ultrasonically clean them with dichloromethane and water for 60 minutes, and then dry them in the air or place them in an oven at 80°C to dry.

[0077] (2) Configuration of piranha solution: prepare concentrated sulfuric acid and hydrogen peroxide at a volume ratio of 2:1, and slowly add hydrogen peroxide into concentrated sulfuric acid.

[0078] (3) Soak the cleaned and dried wire mesh in the piranha solution, let it stand for 30 minutes, and then wash it with deionized water. (4) Configuration of silane coupling agent solution: Add 1.5g of KH-540 into 30ml of toluene solvent.

[0079] (5) Soak the cleaned and dried wire mesh in the silane coupling agent, soak it under magnetic stirring for 24 hours, take it out, wash it with deionized water three times after taking it out, and finally put it in a vacuum drying oven and dry it at 80°C two hours.

[0080] (6) Preparation of aqueous phase solution: 4 grams of triethylam...

Embodiment 3

[0089] (1) Cut the wire mesh into small pieces of 2*2cm, ultrasonically clean them with dichloromethane and water for 40 minutes, and then dry them in the air or place them in an oven at 80°C to dry.

[0090] (2) Configuration of piranha solution: prepare concentrated sulfuric acid and hydrogen peroxide at a volume ratio of 2:1, and slowly add hydrogen peroxide into concentrated sulfuric acid.

[0091] (3) Soak the cleaned and dried wire mesh in the piranha solution, let it stand for 30 minutes, and then wash it with deionized water.

[0092] (4) Configuration of silane coupling agent solution: Add 1.5g of KH-540 into 30ml of toluene solvent.

[0093] (5) Soak the cleaned and dried wire mesh in the silane coupling agent, soak it under magnetic stirring for 24 hours, take it out, wash it with deionized water three times after taking it out, and finally put it in a vacuum drying oven and dry it at 80°C two hours.

[0094] (6) Preparation of aqueous phase solution: 6 grams of m...

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Abstract

The invention relates to a super-hydrophobic wire mesh and a preparation method thereof. The preparation method is characterized in that a wire mesh is modified through interfacial polymerization and unimolecular layer adsorption so as to obtain the super-hydrophobic wire mesh, in other words, by means of polycondensation, a layer of polymeric membrane is formed on the interface or one side of an interfacial organic phase of two solutions which are dissoluble mutually and dissolved with two monomers to fix micro-nano particles to create a rough surface, and then monolayer low-surface-energy substances are grafted on the polymeric membrane through covalent bonds so as to obtain the super-hydrophobic wire mesh. The super-hydrophobic wire mesh has the advantages that the super-hydrophobic wire mesh is of super-hydrophobicity, high oil absorption capability, reusability and durability; good mechanical performance is achieved, the substances for forming the rough surface are connected by the chemical bonds, super-hydrophobicity remains unchanged after ultrasonic treatment, and the super-hydrophobic wire mesh can be used for oil-water separation continuously as compared with other oil-water separation materials. The preparation method is simple in technology, mild in condition, implementable at a room temperature without special instrument and equipment, easily available to modified raw materials, cheap in modified raw materials and low in material preparation cost.

Description

technical field [0001] The invention relates to a superhydrophobic wire mesh and a preparation method thereof. Specifically, it relates to a method for obtaining a super-hydrophobic metal mesh by modifying a cheap and easy-to-obtain metal mesh through a simple method, and using it for oil-water separation. Background technique [0002] With the increase of oil demand and the improvement of industrialization, the research of oil-water separation technology is of great significance to improve the quality of water and oil. The existing oil-water separation methods have certain shortcomings and limitations: centrifugal separation requires a large amount of energy to drive the container containing the oil-water mixture to rotate at a high speed, and is affected by the container at the same time, and the efficiency of this method is low; In the dehydration method, the dehydration environment (vacuum) is demanding, and the heating energy consumption of the oil-water mixture is als...

Claims

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Application Information

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IPC IPC(8): B01D17/022
CPCB01D17/0202
Inventor 杨华伟杨娜张吕鸿张宏杰孙朝宁
Owner TIANJIN UNIV
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