Anti-oxidation method for end surface of copper foil roll

A copper foil roll, anti-oxidation technology, applied in the direction of metal material coating process, etc., can solve problems such as affecting appearance, affecting sales, and oxidative discoloration of copper foil end faces

Active Publication Date: 2020-11-13
MEIZHOU WEILIBANG ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual operation process, it was found that the end surface of the copper foil was not treated with anti-oxidation after cutting, so that the copper foil was directly in contact with the air, resulting in oxidative discoloration of the end surface of the copper foil during subsequent transportation, storage and processing, which not only affected the appearance, It also affects its performance and also affects its sales

Method used

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  • Anti-oxidation method for end surface of copper foil roll
  • Anti-oxidation method for end surface of copper foil roll
  • Anti-oxidation method for end surface of copper foil roll

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1 deals with a copper foil roll with a diameter of 18 cm

[0065] Anti-oxidation solution formula: deionized water with conductivity < 4μs / cm, add benzotriazole, silane coupling agent and analytical pure ethanol with a concentration of 3-10% to the deionized water, and control the pH range of 4- 6. The liquid temperature is 25-30°C, and the anti-oxidation solution is obtained by stirring evenly; the concentration of the benzotriazole is 0.5g / L, and the concentration of the silane coupling agent is 0.5g / L. The added concentration of analytical pure ethanol is 5ml / L.

[0066] Process: Put the prepared anti-oxidation solution into the atomization equipment to make an atomized liquid, and the proportion of the atomized particle size of the atomized liquid is less than 5 μm ≧ 80%. The mist nozzle of the atomization equipment is flat and the radial cross-sectional area of ​​the inner hole is 5cm 2 . The mist output of the mist nozzle is 2ml / min.

[0067] When s...

Embodiment 2

[0068] Embodiment 2 deals with a copper foil roll with a diameter of 25 cm

[0069] Anti-oxidation solution formula: deionized water with conductivity < 4μs / cm, add benzotriazole, silane coupling agent and analytical pure ethanol with a concentration of 3-10% to the deionized water, and control the pH range of 4- 6. The liquid temperature is 25-30°C, and the anti-oxidation solution is obtained by stirring evenly; the concentration of the benzotriazole is 1.5g / L, the concentration of the silane coupling agent is 1.5g / L, and the The added concentration of analytical pure ethanol is 10ml / L.

[0070] Process: Put the prepared anti-oxidation solution into the atomization equipment to make an atomized liquid, and the proportion of the atomized particle size of the atomized liquid is less than 5 μm ≧ 80%. The mist nozzle of the atomization equipment is flat and the radial cross-sectional area of ​​the inner hole is 7cm 2 . The mist output of the mist nozzle is 3.5ml / min.

[0071]...

Embodiment 3

[0072] Example 3 Treatment of Copper Foil Rolls with a Diameter of 35cm

[0073] Anti-oxidation solution formula: deionized water with conductivity < 4μs / cm, add benzotriazole, silane coupling agent and analytical pure ethanol with a concentration of 3-10% to the deionized water, and control the pH range of 4- 6. The liquid temperature is 25-30°C, stir evenly to obtain the anti-oxidation solution; the concentration of the benzotriazole is 3g / L, the concentration of the silane coupling agent is 3g / L, and the concentration of the analytically pure The added concentration of ethanol is 15ml / L.

[0074] Process: Put the prepared anti-oxidation solution into the atomization equipment to make an atomized liquid, and the proportion of the atomized particle size of the atomized liquid is less than 5 μm ≧ 80%. The mist nozzle of the atomization equipment is flat and the radial cross-sectional area of ​​the inner hole is 10cm 2 . The mist output of the mist nozzle is 5ml / min.

[007...

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Abstract

The invention discloses an anti-oxidation method for an end surface of a copper foil roll and belongs to the technical field of anti-oxidation of copper foil rolls. The technical key point is as follows: the anti-oxidation method comprises the following steps: (1) preparing an anti-oxidation solution; and (2) filling atomizing equipment with a prepared anti-oxidation solution to prepare an atomizing solution, aligning a mist outlet nozzle of the atomizing equipment to the end surface of the copper foil roll, controlling the rotating speed of the copper foil roll at 12-18 rpm, and controlling the separation distance between the mist outlet nozzle and the end surface of the copper foil roll at 6-18 cm and spraying uniformly for 25-60 s. The invention provides the anti-oxidation method for the end surface of the copper foil roll, wherein the method is skillful in process, simple to operate and good in effect. The anti-oxidation method is used for anti-oxidation of the end surface of the copper foil roll.

Description

technical field [0001] The invention relates to an anti-oxidation treatment process for copper foil rolls, and more specifically, to an anti-oxidation method for the end faces of copper foil rolls. Background technique [0002] Electrolytic copper foil is the basic material of the electronics industry, and the production of electrolytic copper foil belongs to the high-tech copper processing industry. Anti-oxidation treatment of copper foil is a very important step. If the copper foil is oxidized and discolored, it will not only affect the appearance of the copper foil, but more importantly, it will lead to a decrease in the adhesion of the copper foil, and quality defects such as dew spots in the coating, which will affect the quality of the copper foil. battery performance. [0003] In the prior art, the anti-oxidation treatment process of copper foil is to first perform anti-oxidation treatment on the entire width of copper foil through a surface treatment machine or a ra...

Claims

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Application Information

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IPC IPC(8): C23C22/52C23C22/76
CPCC23C22/52C23C22/76Y02E60/10
Inventor李建伟李凯顺李富明王镇叶伟舰
OwnerMEIZHOU WEILIBANG ELECTRONICS TECH CO LTD