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Preparation method of superhydrophobic oil-water separation fabric based on chemical copper plating

A technology of oil-water separation and electroless copper plating, which is applied in separation methods, chemical instruments and methods, liquid separation, etc., can solve the problems of reduced separation efficiency, low volatility, and loss of effect, and achieves wide adaptability, low cost, and high viscosity. The effect of high fastness

Pending Publication Date: 2020-08-25
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (3) When superhydrophobic and lipophilic materials are used for oil-water separation, due to the viscosity of the oil, it is not easy to be volatile, and the repeated use efficiency is often not high
Oil contamination degrades the superhydrophobic properties of the material and quickly loses oil-water separation
[0007] (4) The hydrophobic groups on the surface play a key role in super-hydrophobic materials. Covering or corroding a layer of materials with hydrophobic groups on the surface of the material will produce super-hydrophobic properties. However, this layer of materials or hydrophobic groups Not strong, loses effectiveness after repeated use or friction and reduces separation efficiency
[0008] There are not many application reports on the industrialization of oil-water separation materials. This is because although the stability of the oil-water separation materials obtained under laboratory conditions is relatively good at this stage, from the perspective of preparation methods, through deposition, coating and other methods Constructed micro-nano rough structure, its effect in practical application is still unclear

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method of superhydrophobic oil-water separation fabric based on chemical copper plating
  • Preparation method of superhydrophobic oil-water separation fabric based on chemical copper plating
  • Preparation method of superhydrophobic oil-water separation fabric based on chemical copper plating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Polyester fabrics were selected for electroless copper plating experiments.

[0066] (1) Treat the fabric with sodium alginate;

[0067] Sodium alginate solutions with different concentrations of 0.25g / L, 0.5g / L, 0.75g / L, 3g / L, 5g / L, 10g / L and 15g / L were prepared respectively, and the degreasing treated fabrics were placed in Soak in sodium alginate solution for 3-5 minutes, the bath ratio is 1:100, then press out the excess solution with a small rolling machine, and repeat this step 3-5 times. After the fabric is taken out, it is placed in an oven and dried at 60°C.

[0068] (2) immerse in the nickel salt solution to absorb nickel;

[0069] Prepare a nickel sulfate solution with a concentration of 60g / L, soak the fabric treated with sodium alginate in the nickel sulfate solution, the bath ratio is 1:50, soak at room temperature for 1 hour, stir and turn from time to time so that the fabric can fully contact the solution and Absorb, then take out the fabric, without ...

Embodiment 2

[0079] Polyester fabrics were selected for electroless copper plating experiments.

[0080] (1) Treat the fabric with sodium alginate;

[0081] Prepare a sodium alginate solution with a concentration of 0.5g / L, soak the degreased fabrics in the sodium alginate solution for 3-5 minutes, the bath ratio is 1:100, and press out the excess solution with a small paddle car , more dipping and rolling, repeat this step 3 to 5 times. After the fabric is taken out, it is placed in an oven and dried at 60°C.

[0082] (2) immerse in the nickel salt solution to absorb nickel;

[0083] Prepare a nickel sulfate solution with a concentration of 60g / L, immerse the fabric treated with sodium alginate in the nickel sulfate solution, the bath ratio is 1:50, soak at room temperature for 1 hour, stir and turn from time to time so that the fabric can fully contact the solution and Absorb, then take out the fabric, without washing, directly put it into the oven to dry at 60°C.

[0084] (3) After ...

Embodiment 3

[0103] Polyester fabrics were selected for electroless copper plating experiments.

[0104] (1) Treat the fabric with sodium alginate;

[0105] Prepare a sodium alginate solution with a concentration of 0.5g / L, soak the degreased fabrics in the sodium alginate solution for 3-5 minutes, the bath ratio is 1:100, and press out the excess solution with a small paddle car , more dipping and rolling, repeat this step 3 to 5 times. After the fabric is taken out, it is placed in an oven and dried at 60°C.

[0106] (2) immerse in the nickel salt solution to absorb nickel;

[0107] Prepare a nickel sulfate solution with a concentration of 60g / L, immerse the fabric treated with sodium alginate in the nickel sulfate solution, the bath ratio is 1:50, soak at room temperature for 1 hour, stir and turn from time to time so that the fabric can fully contact the solution and Absorb, then take out the fabric, without washing, directly put it into the oven to dry at 60°C.

[0108] (3) After ...

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Abstract

The invention discloses a preparation method of a superhydrophobic oil-water separation fabric based on chemical copper plating. The preparation method comprises the following steps of treating the fabric with sodium alginate; firstly immersing the fabric in a nickel salt solution for nickel absorption treatment, and then immersing the fabric in a sodium borohydride solution for activation treatment after cleaning the fabric; immersing the fabric in a copper plating solution for copper plating treatment to obtain a copper-plated fabric; and immersing the copper-plated fabric in a corrosive zinc salt solution, and then immersing the copper-plated fabric in a dodecanoic acid ethanol solution after cleaning the copper-plated fabric. A contact angle of the uperhydrophobic oil-water separationfabric prepared by the invention can reach 159 degrees, and the separation efficiency of mixed liquor of dichloromethane and water can reach 99%, and after 60 times, the separation efficiency can still reach 96%.

Description

technical field [0001] The invention belongs to the technical field of superhydrophobic materials, and in particular relates to a method for preparing a superhydrophobic oil-water separation fabric based on electroless copper plating. Background technique [0002] In recent years, with the continuous improvement of living standards, a large amount of industrial wastewater and domestic sewage have been produced. In addition, the offshore oil exploitation industry is likely to cause marine pollution incidents such as oil spills, and the oil-polluted water has caused serious damage to the environment. It needs to invest a lot of manpower, material and financial resources, but the effect is minimal. Therefore, how to effectively separate oil and water from oil-contaminated water has received more and more attention. Inspired by superhydrophobic phenomena in nature, such as the lotus leaf effect and rose effect, researchers have used various methods to prepare different types o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06M11/83D06M15/13B01D17/022D06M101/32
CPCD06M11/83D06M15/13B01D17/02D06M2200/11D06M2200/12D06M2101/32
Inventor 王矿张成王海珠欧阳威豪陶雨婕赵亮王春霞祁珍明马志鹏高大伟刘国亮陆振乾刘水平
Owner YANCHENG INST OF TECH
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