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Novel room-temperature non-phosphorus coating agent

A coating agent, normal temperature technology, applied in the field of normal temperature coating agent, can solve the problems of high price, unsatisfactory important indicators, immature phosphorus-free coating agent, etc., and achieve the effect of good adhesion and short soaking time

Inactive Publication Date: 2014-12-24
NANJING HUARUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to market research, the phosphorus-free film agents developed in China are still immature, expensive and many important indicators cannot meet the needs of the industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The phosphorus-free coating agent of the present embodiment comprises the following components by weight:

[0030] 3-Aminopropyltriethoxysilane 10%

[0031] Hydrofluoric acid 12%

[0032] Fluorozirconic acid by 10%

[0033] OP-10 10%

[0034] Sodium Citrate 6%

[0035] Tartaric acid 5%

[0036] Sodium molybdate 6%

[0037] water balance.

[0038] The conductivity of the prepared solution is 6160us / cm-7660us / cm, and the pH range is 3-6.

[0039] The processing sample plate of this embodiment selects cold-rolled plate, and process selects spraying, and the whole operation process is as follows:

[0040] 1) Degrease and derust the workpiece;

[0041] 2) The film is formed at a normal temperature of about 20 degrees, and the filming time is 5 minutes;

[0042] 3) Dry at a temperature of 40 degrees;

[0043] 4) Perform electrophoresis treatment.

Embodiment 2

[0045] The phosphorus-free coating agent of the present embodiment comprises the following components by weight:

[0046] 3-Aminopropyltriethoxysilane 13%

[0047] Hydrofluoric acid 15%

[0048] Fluorozirconic acid by 12%

[0049] OP-10 13%

[0050] Sodium Lemon 8%

[0051] Tartaric acid 7%

[0052] Sodium molybdate 8%

[0053] water balance.

[0054] The conductivity of the prepared solution is 6160us / cm-7660us / cm, and the pH range is 3-6.

[0055] The processing sample plate of this embodiment selects cold-rolled plate, and process selects spraying, and the whole operation process is as follows:

[0056] 1) Degrease and derust the workpiece;

[0057] 2) Filming is carried out at a normal temperature of about 20 degrees, and the filming time is 2 minutes;

[0058] 3) Dry at a temperature of 80 degrees;

[0059] 4) Perform electrophoresis treatment.

Embodiment 3

[0061] The phosphorus-free coating agent of the present embodiment comprises the following components by weight:

[0062] 3-Aminopropyltriethoxysilane 14%

[0063] Hydrofluoric acid 15.5%

[0064] Fluorozirconic acid by 13%

[0065] OP-10 15%

[0066] Sodium Citrate 8.5%

[0067] Tartaric acid 8%

[0068] Sodium molybdate 8.5%

[0069] water balance.

[0070] The conductivity of the prepared solution is 6160us / cm-7660us / cm, and the pH range is 3-6.

[0071] The processing sample plate of this embodiment selects cold-rolled plate, and process selects spraying, and the whole operation process is as follows:

[0072] 1) Degrease and derust the workpiece;

[0073] 2) Filming is carried out at a normal temperature of about 20 degrees, and the filming time is 2 minutes;

[0074] 3) Dry at a temperature of 80 degrees;

[0075] 4) Perform electrophoresis treatment.

[0076] One side of the template of embodiment 1-3 is used to do a hundred-grid test with a cross-cut device,...

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Abstract

The invention belongs to the technical field of organic chemical industry, and particularly relates to a novel room-temperature non-phosphorus coating agent. The room-temperature non-phosphorus coating agent comprises the following components in percentage by weight: 10%-15% of 3-aminopropyltriethoxysilane, 10%-20% of hydrofluoric acid, 10%-15% of ammonium fluorozirconate, 10%-15% of OP-10, 5%-10% of sodium citrate, 5%-10% of tartaric acid, 5%-10% of sodium molybdate and a proper amount of water, wherein the conductivity of the prepared solution is 6160mu s / cm to 7660mu s / cm; and the pH range is 3-6. The prepared novel room-temperature non-phosphorus coating agent can generate a nanoscale coating on various metal surfaces at room temperature below 40 DEG C under the condition of low foam, and compared with a traditional phosphorus process, the novel room-temperature non-phosphorus coating agent has the advantages of being environment-friendly, energy-saving, short in soaking time, good in adhesive force and the like.

Description

technical field [0001] The invention belongs to the technical field of organic chemical industry, and in particular relates to a novel normal-temperature coating agent. Background technique [0002] Traditional metal surface treatment methods have problems such as high energy consumption, serious pollution, heavy metal content, difficult wastewater treatment, difficult use and process control, and easy slagging on the pipe wall and inside the pipe. Especially with the continuous improvement of environmental protection requirements and the restriction of resource use, the metal surface treatment technology of environmental protection, energy saving and low cost has become an urgent requirement of the development of the times. [0003] According to market research, the phosphorus-free film agents developed in China are still immature, expensive and many important indicators cannot meet the needs of the industry. Contents of the invention [0004] The purpose of the present ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/44
Inventor 李景高财正王霞
Owner NANJING HUARUI CHEM CO LTD
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