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Environmentally friendly organic metal treating fluid and preparation method thereof

An organometallic and treatment liquid technology, applied in the coating process of metal materials, etc., can solve the problems of long phosphating process, large energy consumption, pollution of phosphating solution, etc. The effect of strong adhesion

Active Publication Date: 2014-03-26
安徽航大生态材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Throughout the current ferrous metal surface phosphating treatment, in addition to the use of silane agents, there are only traditional phosphoric acid and phosphate phosphating. In order to ensure the quality of the phosphating film, various metal ions such as chromium, zinc, and calcium are often compounded or added. , manganese, and nickel to make up for the deficiency of phosphoric acid phosphating, to achieve corrosion resistance and to make the surface spray paint more firmly bonded. However, in the traditional phosphoric acid phosphating, a large amount of iron phosphate precipitates and settles during the phosphating process, causing pollution of the phosphating solution. Auxiliary equipment must be matched to process and purify the phosphating solution to prevent the phosphating solution from being unusable. At the same time, the discharge process brings great pressure to environmental protection; some phosphating formulas require heating, and the phosphating process takes a long time, consuming a lot of energy And other issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] An environment-friendly organic metal surface treatment liquid is prepared from the following raw materials in mass percentage:

[0017] Phytic acid 5%, tartaric acid 8%, pentaerythritol 0.1%, triethanolamine 8%, sodium fatty acid methyl ester sulfonate 1%, and the rest is water, preferably for urban pipe network water supply.

[0018] A preparation method of an environment-friendly organic metal surface treatment liquid, comprising the steps of:

[0019] Prepare raw materials according to the ratio, add phytic acid into water, stir for 20 minutes, then add tartaric acid, pentaerythritol, triethanolamine, sodium fatty acid methyl ester sulfonate in sequence, and continue stirring for 40 minutes to obtain the product.

Embodiment 2

[0021] An environment-friendly organic metal surface treatment liquid is prepared from the following raw materials in mass percentage:

[0022] Phytic acid 15%, tartaric acid 3%, pentaerythritol 3%, triethanolamine 4%, sodium fatty acid methyl ester sulfonate 8%, the rest is water, preferably for urban pipe network water supply.

[0023] A preparation method of an environment-friendly organic metal surface treatment liquid, comprising the steps of:

[0024] Prepare raw materials according to the ratio, add phytic acid into water, stir for 20 minutes, then add tartaric acid, pentaerythritol, triethanolamine, sodium fatty acid methyl ester sulfonate in sequence, and continue stirring for 40 minutes to obtain the product.

Embodiment 3

[0026] An environment-friendly organic metal surface treatment liquid is prepared from the following raw materials in mass percentage:

[0027] Phytic acid 10%, tartaric acid 5%, pentaerythritol 2%, triethanolamine 6%, sodium fatty acid methyl ester sulfonate 5%, and the rest is water, preferably for urban pipe network water supply.

[0028] A preparation method of an environment-friendly organic metal surface treatment liquid, comprising the steps of:

[0029] Prepare raw materials according to the ratio, add phytic acid into water, stir for 20 minutes, then add tartaric acid, pentaerythritol, triethanolamine, sodium fatty acid methyl ester sulfonate in sequence, and continue stirring for 40 minutes to obtain the product.

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PUM

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Abstract

The invention discloses an environmentally friendly organic phosphating solution which is prepared from the following raw materials in mass percentage: 5-15% of phytic acid, 3-8% of tartaric acid, 0.1-3% of pentaerythritol, 4-8% of triethanolamine, 1-8% of methyl ester sodium sulfonate and the balance of tap water. The environmentally friendly organic phosphating solution has the following advantages: the phosphating time is as short as 3-8 minutes, the operating temperature span is great ranging from 15 to 45 DEG C, the process is simple without acid pickling or tempering, the film formation is thin and good in quality, the adhesive force on a painted surface is strong, all indicators meet the national standard, a bath solution has a long service cycle, and the liquid waste is pollution-free.

Description

technical field [0001] The invention relates to a chemical product and a preparation method thereof, in particular to an environment-friendly organic metal treatment liquid and a preparation method thereof. Background technique [0002] Throughout the current ferrous metal surface phosphating treatment, in addition to the use of silane agents, there are only traditional phosphoric acid and phosphate phosphating. In order to ensure the quality of the phosphating film, various metal ions such as chromium, zinc, and calcium are often compounded or added. , manganese, and nickel to make up for the deficiency of phosphoric acid phosphating, to achieve corrosion resistance and to make the surface spray paint more firmly bonded. However, in the traditional phosphoric acid phosphating, a large amount of iron phosphate precipitates and settles during the phosphating process, causing pollution of the phosphating solution. Auxiliary equipment must be matched to process and purify the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/05
Inventor 杜江杜璇
Owner 安徽航大生态材料有限责任公司
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