Gold and silver surface anti-oxidation and anti-color-change protecting agent and preparation method and application thereof

An anti-discoloration agent and anti-oxidation technology, applied in the direction of metal material coating process, etc., can solve the problems of damage to the protective layer, damage to the surface of the coating, increase in cost, etc., to ensure cleanliness, long-term anti-corrosion, and ensure integrity. Effect

Inactive Publication Date: 2019-09-13
广东锴力环保新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of protective agent will affect the weldability and conductivity of the coating, and the persistence of the bright effect is relatively poor. At the same time, it is difficult to remove the oil layer protection and will damage the surface of the coating, which indirectl

Method used

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  • Gold and silver surface anti-oxidation and anti-color-change protecting agent and preparation method and application thereof
  • Gold and silver surface anti-oxidation and anti-color-change protecting agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An anti-oxidation and anti-tarnish protection agent for gold and silver surfaces comprises the following components in parts by weight: 15 parts of stearyl mercaptan, 8 parts of lactic acid, 35 parts of tert-octylphenol polyoxyethylene ether (Triton X100), Benzyl 5 parts of ether, 3 parts of dodecyl dimethyl benzyl ammonium chloride, 0.5 parts of 1-naphthylaminobenzene, 1 part of benzotriazole, 11 parts of paraffin wax emulsion, 2 parts of palm wax, and 19.5 parts of water.

[0033] The preparation method of the above-mentioned gold and silver surface anti-oxidation anti-discoloration protective agent comprises the following steps:

[0034] 1) Prepare the raw materials of the above weight;

[0035] 2) Add 8 parts of lactic acid, 35 parts of tert-octylphenol polyoxyethylene ether, and 3 parts of dodecyldimethylbenzyl ammonium chloride into 19.5 parts of water, and fully stir to dissolve;

[0036] 3) Continue to add 3 parts of benzyl ether, 0.3 parts of 1-naphthylaminobenz...

Embodiment 2

[0039] An anti-oxidation and anti-tarnish protection agent for gold and silver surfaces comprises the following components in parts by weight: 10 parts of dodecyl mercaptan, 5 parts of behenyl mercaptan, styrylphenol polyoxyethylene ether (Nongru 600#- 1) 30 parts, 15 parts of lauryl alcohol random polyether (CPE1500), 5 parts of thioglycolic acid, 4 parts of benzyl alcohol, 5 parts of PAO synthetic wax, 2 parts of dodecyltrimethylammonium bromide, ethoxyquin 0.5 parts of morphine, 0.5 parts of phosphine carboxylic acid, 1 part of soybean oil, and 22 parts of water.

[0040] The preparation method of the above-mentioned gold and silver surface anti-oxidation anti-discoloration protective agent comprises the following steps:

[0041] 1) Prepare the raw materials of the above weight;

[0042] 2) Add 30 parts of styrylphenol polyoxyethylene ether, 15 parts of polyether (CPE1500), 4 parts of benzyl alcohol, 2 parts of dodecyltrimethylammonium bromide, and 5 parts of citric acid t...

Embodiment 3

[0046] An anti-oxidation and anti-discoloration protective agent for gold and silver surfaces, comprising the following components in parts by weight: 15 parts of behenyl mercaptan, 20 parts of bisphenol A polyoxyethylene ether, 15 parts of hydrogenated castor oil polyoxyethylene ether, apple 5 parts of acid, 3 parts of propylene glycol phenyl ether, 1 part of 2-mercaptobenzothiazole, 8 parts of oxidized polyethylene wax emulsion, 2 parts of dodecyltrimethylammonium chloride, 2,2'-methylene bis- (4-methyl-6-tert-butylphenol) 1 part, simethicone 1 part, water 29 parts.

[0047] A preparation method for an anti-oxidation and anti-tarnish protection agent for gold and silver surfaces, comprising the following steps:

[0048] 1) Prepare the raw materials of the above weight;

[0049] 2) Add 20 parts of bisphenol A polyoxyethylene ether, 15 parts of hydrogenated castor oil polyoxyethylene ether, 5 parts of malic acid, 3 parts of propylene glycol phenyl ether, and 2 parts of dodecy...

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Abstract

The invention discloses a gold and silver surface anti-oxidation and anti-color-change protecting agent and a preparation method and application thereof, and belongs to the technical field of gold andsilver plating layer protecting agents. The protecting agent comprises the following components in parts by weight: 15-30 parts of color change preventing agents, 10-15 parts of film forming agents,3-8 parts of alcohol ether solvents, 30-50 parts of emulsifying agents, 2-5 parts of benzethonium chloride, 5-10 parts of carboxylic acid type deoxidants, 1-3 parts of corrosion inhibitors, 0.5-1 partof antioxidants, 1-3 parts of brightening agents, and 5-20 parts of water. The prepared protecting agent can form double layers of protecting films to effectively prevent oxidation of gold and silverplating layers by air and corrosion by acid and alkali; meanwhile, the surface corrosion and color change resistance of the plating layers is improved; the brightness of the plating layers is improved; the performances of higher brightness and efficiency are given to the plating layers; the protecting agent also can be applied to surface protection of copper substrates, and the effect can rival chromium salt protecting films; the copper surface colors can be not changed for a long time; the effect of low poison is achieved; and the treatment process is simple.

Description

technical field [0001] The invention belongs to the technical field of gold and silver plating protective agents, in particular to a gold and silver surface anti-oxidation and anti-discoloration protective agent and its preparation method and application. Background technique [0002] Both gold and silver are precious metals, which have been widely used in the surface treatment industry due to their relatively stable chemical activity and good brightening effect. The gold-plated silver layer can be applied on the surface of electronic products to improve the oxidation resistance and conductivity of the product, and can also improve the brightness of hardware jewelry, and it is also used in the fields of automobiles, medical equipment, construction, machinery manufacturing, aviation, aerospace, ships, etc. . However, long-term exposure of gold and silver coatings to the air or immersion in river water and seawater tends to produce black oxide films. This layer of oxide film ...

Claims

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Application Information

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IPC IPC(8): C23F11/10C23C22/48
CPCC23C22/48C23F11/10
Inventor 王涛邴智武
Owner 广东锴力环保新材料有限公司
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