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Liquid surface conditioning agent for coating and preparation method thereof

A liquid surface and adjusting agent technology, applied in the direction of metal material coating process, etc., can solve the problems of insignificant effect of aluminum alloy, poor stability of titanium colloid, and need to improve corrosion resistance, so as to achieve good activity retention performance and improve stability. , the effect of good versatility

Active Publication Date: 2017-03-22
武汉钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are limitations. It only has a good effect on the surface of steel, and the effect on aluminum alloys is not obvious. At the same time, the corrosion resistance needs to be improved, and the titanium colloid has the disadvantages of poor stability and short storage time.

Method used

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  • Liquid surface conditioning agent for coating and preparation method thereof

Examples

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Effect test

Embodiment 1

[0026] A liquid surface conditioner for coating, each component includes by weight parts: 15 parts of a mixture of zinc phosphate and iron phosphate (the mass ratio of zinc phosphate and iron phosphate is 1:0.25), 9 parts of triethylhexyl phosphoric acid 8 parts, 8 parts of copper pyrophosphate, 8 parts of disodium dihydrogen pyrophosphate, 6 parts of hydrolyzed polymaleic anhydride, 1 part of sodium hydroxide, 53 parts of water; Its preparation method comprises the following steps:

[0027] Weigh deionized water according to the proportion, then add disodium dihydrogen pyrophosphate, triethylhexyl phosphoric acid and sodium hydroxide in sequence under stirring conditions, and then add the mixture of zinc phosphate and iron phosphate dispersed by ultrasonic disperser and hydrolyzate Maleic anhydride, keep it for 15 minutes, then add copper pyrophosphate to form a uniform mixture, finally add sodium hydroxide to the resulting mixture to adjust the pH value of the mixture between...

Embodiment 2

[0031] A liquid surface conditioner for coating, each component includes by weight parts: 20 parts of a mixture of zinc phosphate and iron phosphate (the mass ratio of zinc phosphate and iron phosphate is 1:0.25), 10 parts of triethylhexyl phosphoric acid 5 parts, 5 parts of copper pyrophosphate, 5 parts of disodium dihydrogen pyrophosphate, 5 parts of hydrolyzed polymaleic anhydride, 1 part of sodium hydroxide, 66 parts of water; Its preparation method comprises the following steps:

[0032] Weigh deionized water according to the proportion, then add disodium dihydrogen pyrophosphate, triethylhexyl phosphoric acid and sodium hydroxide in sequence under stirring conditions, and then add the mixture of zinc phosphate and iron phosphate dispersed by ultrasonic disperser and hydrolyzate Maleic anhydride, keep it for 15 minutes, then add copper pyrophosphate to form a uniform mixture, finally add sodium hydroxide to the resulting mixture to adjust the pH value of the mixture betwee...

Embodiment 3

[0035] A liquid surface conditioner for coating, each component includes in parts by weight: 10 parts of a mixture of zinc phosphate and iron phosphate (the mass ratio of zinc phosphate and iron phosphate is 1:0.25), 8 parts of triethylhexyl phosphoric acid 5 parts, 5 parts of copper pyrophosphate, 5 parts of disodium dihydrogen pyrophosphate, 5 parts of hydrolyzed polymaleic anhydride, 1 part of sodium hydroxide, 66 parts of water; Its preparation method comprises the following steps:

[0036] Weigh deionized water according to the proportion, then add disodium dihydrogen pyrophosphate, triethylhexyl phosphoric acid and sodium hydroxide in sequence under stirring conditions, and then add the mixture of zinc phosphate and iron phosphate dispersed by ultrasonic disperser and hydrolyzate Maleic anhydride, keep it for 15 minutes, then add copper pyrophosphate to form a uniform mixture, finally add sodium hydroxide to the resulting mixture to adjust the pH value of the mixture betw...

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Abstract

The invention discloses a liquid surface conditioning agent for coating. The liquid surface conditioning agent is prepared from, by weight, 10-20 parts of the mixture of zinc phosphate and iron phosphate, 8-10 parts of triethylhexyl phosphate, 5-10 parts of copper pyrophosphate, 5-10 parts of disodium dihydrogen pyrophosphate, 5-8 parts of hydrolytic polymaleic anhydride, 1-2 parts of sodium hydroxide and 40-66 parts of water. By means of the liquid surface conditioning agent, long-time stability of conditioning liquid can be improved, the influence of water in the using process is small, and the composition performance of a phosphate coating film of oxide skin mixed materials, aluminum alloy and other materials difficult to treat is significantly improved. When the surface conditioning agent is prepared, the long-time heating process is omitted, and drying is not needed. The liquid surface conditioning agent is higher in treating ability compared with a solid surface conditioning agent used at present; and the liquid surface conditioning agent is good in activation keeping performance and still keeps the good surface conditioning activity after being placed at indoor temperature for four months or longer.

Description

technical field [0001] The invention belongs to the technical field of surface treatment and relates to a novel coating liquid surface regulator. Background technique [0002] Surface conditioning treatment refers to the use of phosphating surface regulators to change the microscopic state of the steel plate surface that needs phosphating, so as to promote the formation of a fine, uniform and dense phosphating film during the phosphating process. Surface adjustment is used before phosphating film formation. The amount of surface conditioner used is small, but it has an extremely important role, which can improve the quality of phosphating film and shorten the phosphating time. The currently used surface conditioner usually adopts titanium glue conditioner, and the prepared phosphating film is fine and uniform. However, there are limitations. It only has a good effect on the surface of steel, and the effect on aluminum alloys is not obvious. At the same time, the corrosion r...

Claims

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Application Information

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IPC IPC(8): C23C22/62C23C22/66C23C22/60
CPCC23C22/60C23C22/62C23C22/66
Inventor 马颖庞涛程鹏郎丰军黄先球彭浩宋建红何锐
Owner 武汉钢铁有限公司
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