Water-soluble copper protective agent, preparation method and using method thereof

A copper protective agent and water-soluble technology, applied in the field of metal anti-corrosion, can solve the problems of weak anti-corrosion effect and insufficient environmental protection, and achieve the effects of low production cost, convenient waste disposal, and excellent discoloration prevention.

Inactive Publication Date: 2011-02-16
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of weak anti-corrosion effect or insufficient environmental protection in the prior art, the present i

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: Prepare 100 kilograms of copper protective agent

[0028] The proportioning of each component is carried out according to the following ratio: 0.38 kg of benzotriazole, 0.32 kg of 2-mercaptobenzothiazole, 19 kg of ethanol, 3 kg of sodium lauryl sulfate, and the balance is 77.3 kg of water.

[0029] The preparation process of this embodiment is:

[0030] 1. Dissolve the film-forming substance in the co-surfactant, and stir at a speed of 400 rpm for 15 minutes at a temperature of 60°C to prepare a solution;

[0031] 2. Dissolve the surfactant in water, and stir in airtight at 50°C at a speed of 400 rpm for 15-15 minutes to prepare B solution;

[0032] 3. Slowly add solution A to solution B and stir in airtight at 600 rpm, and continue stirring for 10 minutes after the addition process is completed;

[0033] 4. After cooling to room temperature, put into cans.

[0034] The usage method of this embodiment is:

[0035] First heat the water-soluble copper pr...

Embodiment 2

[0036] Embodiment 2: prepare 100 kilograms of copper protective agent

[0037] Carry out the proportioning of each component according to the following ratio: 0.24 kilograms of 5-phenyltetrazolium, 0.16 kilograms of 2-mercaptoimidazoles, 0.4 kilograms of 2-amino-5-mercapto-1,3,4-thiadiazoles, 16 kilograms of propanols, 3.6 kilograms of sodium dodecylbenzenesulfonate, and a balance of 79.6 kilograms of water.

[0038] The preparation process of this embodiment is:

[0039] 1. Dissolve the film-forming substance in the co-surfactant, and stir at a speed of 400 rpm at a temperature of 60°C for 20 minutes in an airtight manner to prepare a solution;

[0040] 2. Dissolve the surfactant in water, and stir in airtight at 50°C at a speed of 400 rpm for 15-20 minutes to prepare B solution;

[0041] 3. Slowly add solution A to solution B and stir in airtight at 600 rpm, and continue stirring for 15 minutes after the addition process is completed;

[0042] 4. After cooling to room tem...

Embodiment 3

[0045] Embodiment 3: prepare 100 kilograms of copper protection agents

[0046] The proportioning of each component is carried out according to the following ratio: 0.4 kg of 1-phenyl-5-mercaptotetrazolium, 0.32 kg of 2-mercaptobenzimidazole, 17.4 kg of n-butanol, 2.8 kg of Tween-80, and the balance is 72.6 kg of water.

[0047] The preparation process of this embodiment is:

[0048] 1. Dissolve the film-forming substance in the co-surfactant, and stir at a speed of 400 rpm at a temperature of 60°C for 20 minutes in an airtight manner to prepare a solution;

[0049] 2. Dissolve the surfactant in water, and stir in airtight at 50°C at a speed of 400 rpm for 15-15 minutes to prepare B solution;

[0050] 3. Slowly add solution A to solution B and stir in airtight at 600 rpm, and continue stirring for 15 minutes after the addition process is completed;

[0051] 4. After cooling to room temperature, put into cans.

[0052] The usage method of this embodiment is:

[0053] First...

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PUM

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Abstract

The invention discloses a water-soluble copper protective agent, a preparation method and a suing method thereof. The preparation method comprises the following steps of: preparing 0.7 to 0.8 weight percent of film forming material and 16 to 19 weight percent of cosurfactant into solution A; preparing 2.8 to 3.6 weight percent of surfactant and the balance of water to prepare solution B; and performing microemulsion on mixture of the solution A and the solution B. The using method comprises the following steps of: heating the water-soluble copper protective agent to the temperature of 60 to 70 DEG C; immersing a clean and dry workpiece in the heated water-soluble copper protective agent for 5 to 10 minutes; taking the workpiece out; and drying, packing and warehousing. The water-soluble copper protective agent has high corrosion resistance and stable electric property, is safe, environmental-friendly and low-cost.

Description

technical field [0001] The invention relates to the technical field of metal anticorrosion, in particular to an anticorrosion agent for preventing copper or copper alloys from being oxidized, discolored and corroded. Background technique [0002] Copper and copper alloys have excellent electrical conductivity, thermal conductivity, machinability, weldability and corrosion resistance. For a long time, it has been widely used in various fields such as industry, military and civilian use, especially in electronic appliances. However, it is prone to corrosion and discoloration in the use environment, and the discoloration film will reduce various properties of copper, seriously affecting their use effect and life. The surface of copper materials such as electronic printed boards, connectors, and cavities are easily corroded to a certain extent in the atmosphere, causing bad phenomena such as poor contact, decreased solderability, and increased reflow resistance. The impact on m...

Claims

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Application Information

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IPC IPC(8): C23F11/00
Inventor 李博李佳
Owner NORTHWESTERN POLYTECHNICAL UNIV
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