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A kind of preparation method of superhydrophobic copper foil

A technology of super-hydrophobic surface and copper foil, which is applied to the device for coating liquid on the surface, metal material coating process, special surface, etc., can solve the problems of poor stability, achieve stable performance maintenance, good reproducibility, prevent snow sticking effect

Active Publication Date: 2017-02-08
广东省汇林包装科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The applicant applied for an invention patent in 2011, the publication number is CN102489439A, and the title of the invention is a preparation method of a superhydrophobic copper sheet. The copper sheet is soaked in ethanol and acetone for 10 minutes, then dried, and then the copper sheet is Soaked in the ammonium bicarbonate solution for 0.5-8 hours, and finally soaked in the stearic acid solution, the obtained superhydrophobic copper sheet has self-cleaning properties, but the applicant later found that the superhydrophobic copper sheet obtained by the above-mentioned preparation method Poor stability, generally only lasts for 1-2 months

Method used

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  • A kind of preparation method of superhydrophobic copper foil
  • A kind of preparation method of superhydrophobic copper foil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1. Cut copper foil with appropriate length and width.

[0029] Step 2. Rinse off the dust on the copper foil surface with deionized water.

[0030] Step 3: Soak the copper foil in ethanol and acetone for 25 minutes, then take it out and dry it.

[0031] Step 4: Soak the copper foil in glacial acetic acid solution for 10 hours, the temperature of glacial acetic acid is 20°C.

[0032] Step 5: Soak the copper foil soaked in 25% glacial acetic acid in 15% hydrogen peroxide for 1 hour at a temperature of 40°C.

[0033] Step 6. Soak the copper foil soaked in hydrogen peroxide for 5 hours in a 2% potassium permanganate solution by mass, and the soaking temperature is 20°C.

[0034] Step 7, dissolving stearic acid in ethanol to form a solution with a concentration of 1% by mass.

[0035] Step 8. Put the copper foil soaked in the potassium permanganate solution in the stearic acid solution prepared in step 7 and soak for 30 minutes, then take it out and dry it to obtain ...

Embodiment 2

[0037] Step 1. Cut copper foil with appropriate length and width.

[0038] Step 2. Rinse off the dust on the copper foil surface with deionized water.

[0039] Step 3: Soak the copper foil in ethanol and acetone for 30 minutes, then take it out and dry it.

[0040] Step 4: Soak the copper foil in a 30% by mass glacial acetic acid solution for 0.5 hour, and the temperature of the glacial acetic acid is 60°C.

[0041] Step 5: Soak the copper foil soaked in glacial acetic acid in 5% hydrogen peroxide for 5 hours at a temperature of 20°C.

[0042] Step 6. Soak the copper foil soaked in hydrogen peroxide for 5 hours in a solution of 1% potassium permanganate by mass, and the soaking temperature is 80°C.

[0043] Step 7, dissolving stearic acid in ethanol to form a solution with a concentration of 5% by mass.

[0044]Step 8. Put the copper foil soaked in the potassium permanganate solution in the stearic acid solution prepared in step 7 and soak for 40 minutes, then take it out a...

Embodiment 3

[0046] Step 1. Cut copper foil with appropriate length and width.

[0047] Step 2. Rinse off the dust on the copper foil surface with deionized water.

[0048] Step 3: Soak the copper foil in ethanol and acetone for 30 minutes, then take it out and dry it.

[0049] Step 4: Soak the copper foil in a glacial acetic acid solution with a concentration of 35% by mass for 5 hours, and the temperature of the glacial acetic acid is 25°C.

[0050] Step 5. Soak the copper foil soaked in glacial acetic acid in 10% hydrogen peroxide for 3 hours at a temperature of 50°C.

[0051] Step 6: Soak the copper foil soaked in hydrogen peroxide for 1 hour in a 5% potassium permanganate solution at a temperature of 50°C.

[0052] Step 7, dissolving stearic acid in ethanol to form a solution with a concentration of 1% by mass.

[0053] Step 8. Put the copper foil soaked in the potassium permanganate solution in the stearic acid solution prepared in step 7 and soak for 30 minutes, then take it out ...

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Abstract

The invention relates to the technical field of super-hydrophobic preparing of a copper foil, in particular to a method for preparing a super-hydrophobic copper foil. A super-hydrophobic surface is built on the copper foil, the contact angle of the surface and water ranges from 150 degrees to 160 degrees, the rolling angle is smaller than 10 degrees, the copper foil is tailored according to the building method, dust on the surface of the copper foil is washed away through deionized water, the copper foil is immersed in ethyl alcohol and acetone in sequence and taken out to be dried, the copper foil is immersed in glacial acetic acid for 0.5 hour to 10 hours, the copper foil is immersed in hydrogen peroxide for 1 hour to 10 hours, the copper foil is immersed in a potassium permanganate solution for 1 hour to 5 hours, the copper foil is immersed in a stearic acid solution for 30 minutes to 60 minutes, the copper foil is taken out to be dried, and then the super-hydrophobic copper foil can be obtained. The preparing method has the advantages that the technology is simple, reproducibility is good, no expensive equipment is needed, and no complex chemical processing procedure is needed; the prepared super-hydrophobic copper foil is good in stability and can be kept for at least one year.

Description

technical field [0001] The invention relates to the technical field of superhydrophobic preparation of copper foil, in particular to a preparation method of superhydrophobic copper foil. Background technique [0002] Metals and alloys are widely used in various departments of shipbuilding, construction, national defense and national production due to their excellent electrical conductivity, thermal conductivity, certain strength and good processability. However, ordinary metals are easily corroded in humid or corrosive environments, which affects the service life of the material, causes it to not function normally, and brings many unsafe factors to users. Worldwide, the consumption caused by metal corrosion accounts for 2 to 3% of the entire industrial product production, and the direct economic loss caused by it reaches 700 billion U.S. dollars every year. If the indirect losses such as maintenance costs are included, this figure will be greatly increased. improve. Howeve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/73B05D5/08
CPCB05D5/08C23C22/73
Inventor 谭伟袁志庆
Owner 广东省汇林包装科技集团有限公司
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