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Green and environment-friendly copper tarnish prevention agent and preparation method thereof

A technology of green environmental protection and discoloration agent, which is applied in the field of metal anti-discoloration, can solve the problems of large dosage, high cost and unsatisfactory effect, and achieve the effect of improving corrosion inhibition efficiency

Inactive Publication Date: 2017-07-04
江门市盈盛焊接材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when amino acid or tungstate is used alone as a copper corrosion inhibitor, its effect is often not ideal, and the dosage is large and the cost is high

Method used

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  • Green and environment-friendly copper tarnish prevention agent and preparation method thereof
  • Green and environment-friendly copper tarnish prevention agent and preparation method thereof
  • Green and environment-friendly copper tarnish prevention agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A green and environmentally friendly copper anti-tarnishing agent, which contains the following raw material components by mass percentage:

[0026]

[0027] The preparation method of the green environmental protection copper anti-tarnishing agent includes the following steps:

[0028] (1) Dissolve the benzotriazole in ethanol to obtain an ethanol solution of benzotriazole for use;

[0029] (2) Put polyaspartic acid, sodium tungstate, oxidized starch, and deionized water into the stirring pot and stir;

[0030] (3) After all materials are completely dissolved and dispersed, the ethanol solution of benzotriazole prepared in step (1) is added, and stirring is continued until uniform, to obtain a copper anti-tarnishing agent.

Embodiment 2

[0032] A green and environmentally friendly copper anti-tarnishing agent, which contains the following raw material components by mass percentage:

[0033]

[0034] The preparation method of the green environmental protection copper anti-tarnishing agent is the same as that of Example 1.

Embodiment 3

[0036] A green and environmentally friendly copper anti-tarnishing agent, which contains the following raw material components by mass percentage:

[0037]

[0038] The preparation method of the green environmental protection copper anti-tarnishing agent is the same as that of Example 1.

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Abstract

The invention relates to a green and environment-friendly copper tarnish prevention agent and a preparation method thereof, and belongs to the technical field of metal tarnish prevention. The green and environment-friendly copper tarnish prevention agent is prepared from, by mass, 8%-30% of amino acid, 5%-25% of an inorganic corrosion inhibitor, 0%-5% of an organic corrosion inhibitor, 0%-5% of oxidized starch, 0%-30% of ethanol and 30%-60% of deionized water; amino acid is an environment-friendly chemical with the good biodegradability and can inhibit corrosion of metals such as copper by serving as a nontoxic and environment-friendly corrosion inhibitor, and tungstate has a protection effect on copper, is low in toxicity and environmental pollution and is an inorganic corrosion inhibitor having a great developing prospect. Accordingly, by compounding multiple corrosion inhibitors, the corrosion inhibition efficiency is improved through the synergistic effect among molecules of the corrosion inhibitors; the adopted raw materials are all environment-friendly chemicals, and therefore the prepared finished product is green and environmentally friendly; the product has an efficient tarnish prevention effect on the surface of a copper product.

Description

Technical field [0001] The invention belongs to the technical field of metal anti-tarnishing, and specifically relates to a green environmental protection copper anti-tarnishing agent and a preparation method thereof. Background technique [0002] The surface color of copper and copper products will change at room temperature and in the atmospheric environment. After high temperature (180-200℃) processing, this phenomenon is more serious, which greatly affects the appearance of copper products. The copper anti-tarnishing agent is made of a variety of chemical anti-corrosion raw materials and additives. It is a product specially developed for the anti-rust of copper product components and materials. It has good anti-rust effect, no loss of workpieces, convenient and quick use, no burning, Relatively safe and environmentally friendly, it can keep the original color of the copper material for a long time after various processing, and avoid various spots such as red and green spots. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/02
CPCC23F11/02
Inventor 熊进
Owner 江门市盈盛焊接材料科技有限公司
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