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A kind of preparation method of superhydrophobic superoleophilic nickel-plated carbon fiber

A nickel-plated carbon fiber, super lipophilic technology, applied in separation methods, chemical instruments and methods, immiscible liquid separation, etc., can solve problems such as inability to use for a long time, and achieve high-efficiency separation ability, good coating bonding strength, and low cost. Effect

Active Publication Date: 2021-06-08
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The super-hydrophilic film prepared by this method will gradually become hydrophobic under the light environment for a long time, and cannot be used for a long time.

Method used

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  • A kind of preparation method of superhydrophobic superoleophilic nickel-plated carbon fiber
  • A kind of preparation method of superhydrophobic superoleophilic nickel-plated carbon fiber
  • A kind of preparation method of superhydrophobic superoleophilic nickel-plated carbon fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Pretreatment

[0028] Use the acetone method to remove the glue, soak the carbon fiber in 500mL of acetone and deionized water and ultrasonically clean it for 60min, and reciprocate twice; / L of HCl solution ultrasonically cleaned for 20min, and cleaned with deionized water; then soak the carbon fiber after removing the surface oil in the mixed aqueous solution of ammonium peroxodisulfate and sulfuric acid, wherein the concentration of ammonium peroxodisulfate is 200g / L, and the concentration of sulfuric acid Concentration is 100ml / L, ultrasonic cleaning is performed for 20 minutes at the same time, and then cleaned with deionized water; finally, it is neutralized with 10% NaOH for 20 minutes, and then cleaned with deionized water. After pretreatment of carbon fibers such as figure 1 shown.

[0029] (2) Nickel plating

[0030] The components and concentrations of the substances in the electroplating solution are as follows: 200g / L nickel sulfate, 50g / L nickel chl...

Embodiment 2

[0036] (1) Pretreatment

[0037]Use the acetone method to remove the glue, soak the carbon fiber in 500mL of acetone and deionized water for 30min and ultrasonically clean it for 30min, reciprocate twice; 0.5mol / L HCl solution was ultrasonically cleaned for 20 minutes, and then cleaned with deionized water; then the carbon fiber after removing the surface oil was soaked in the mixed aqueous solution of ammonium peroxodisulfate and sulfuric acid, wherein the concentration of ammonium peroxodisulfate was 50g / L, The concentration of sulfuric acid is 50ml / L, ultrasonic cleaning for 20min at the same time, and then cleaning with deionized water; finally, use 5% NaOH for neutralization for 10min, and then wash with deionized water.

[0038] (2) Nickel plating

[0039] The components and concentrations of the substances in the electroplating solution are as follows: 50g / L nickel sulfate, 10g / L nickel chloride, 5g / L boric acid, 0.01g / L sodium lauryl sulfate, mixed and prepared aqueou...

Embodiment 3

[0043] (1) Pretreatment

[0044] The acetone method is used to remove the glue, and the carbon fiber is soaked in 500mL of acetone and deionized water for 60min and ultrasonically cleaned for 60min, reciprocating twice; the surface oil is removed by acid and alkali solution, and the degummed carbon fiber is successively washed with 2mol / L NaOH solution and 2mol / L of HCl solution ultrasonically cleaned for 20 minutes, and cleaned with deionized water; then soak the carbon fiber after removing the surface oil in the mixed aqueous solution of ammonium peroxodisulfate and sulfuric acid, wherein the concentration of ammonium peroxodisulfate is 300g / L, and the concentration of sulfuric acid Concentration is 200ml / L, ultrasonic cleaning is performed for 20 minutes at the same time, and then cleaned with deionized water; finally, it is neutralized with 20% NaOH for 20 minutes, and then cleaned with deionized water.

[0045] (2) Nickel plating

[0046] The components and concentratio...

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Abstract

The invention belongs to the technical field of functional materials, and relates to a preparation method of superhydrophobic and superoleophilic nickel-plated carbon fibers. In this method, a layer of metal nickel is plated on the surface of carbon fiber through pretreatment, electroplating nickel and fluorination processes, and makes it super-hydrophobic. Pretreatment: Acetone method to remove glue, acid and alkali solution to remove oil at high temperature, and then roughen the surface of carbon fiber to make the surface show a rough microstructure, and finally neutralize; electroplating nickel: immerse the dispersed carbon fiber in a nickel ion-containing In the solution, fix the cathode of the DC power supply, and place it symmetrically parallel to the anode nickel plate; fluorination: soak the nickel-plated carbon fiber in the fluorosilane ethanol solution. The contact angle of superhydrophobic superoleophilic nickel-plated carbon fiber to water is greater than 150°, and the contact angle to oil is less than 10°. The method has the advantages of simple operation, low cost and the like, and can effectively realize high-purity separation of various oil-water mixtures.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and relates to a preparation method of superhydrophobic and superoleophilic nickel-plated carbon fibers. Background technique [0002] The high-purity separation technology of oil-water mixture is one of the hot issues in the field of engineering technology. Large-scale marine oil spills, crude oil pollution, and oil-water mixtures caused by oil used in household factories will not only damage water quality, pollute soil, and affect the environment, but also easily cause huge economic losses and even endanger human health. Therefore, how to realize high-purity oil-water separation has great practical significance. [0003] The current separation methods of oil-water mixtures can be divided into traditional processing methods and methods based on extremely wettable materials. Traditional treatment methods include microbial degradation method, combustion method, oil collection method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D17/022
CPCB01D17/02
Inventor 宋金龙张龙龙黄柳刘新王康
Owner DALIAN UNIV OF TECH
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