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Metal antirust agent and production process thereof

A metal rust inhibitor and solution technology, used in anti-corrosion coatings, coatings, etc., can solve problems such as less than ideal water solubility, weakened rust resistance, and unfavorable environmental protection, and achieve good coverage and hygroscopicity, and rust resistance. Good, easy to clean effect

Inactive Publication Date: 2009-10-28
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Water-soluble antirust agent is the development trend of antirust agent. Chinese patent CN1084534A introduces a kind of water-soluble metal antirust agent. It is mainly composed of sodium borate and ammonium borate double salt. Because ammonia water is used in the formulation process, No matter in the industrial or experimental process, it produces a pungent smell, which is not conducive to environmental protection
Chinese patent CN1488699A discloses that it is composed of waxy substances, antirust agents, adsorbents, surfactants, etc., but its water solubility is not ideal, and it is easy to cause liquid stratification, which significantly weakens the antirust performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 40g of industrial grade solid sorbitol is heated to about 80 degrees, after making it melt completely; After adding 27g of industrial grade triethanolamine into the melted sorbitol, stir evenly; Slowly add 15g of benzoic acid in the above mixture, simultaneously Stir, and be heated to 110 degree, make benzoic acid dissolve completely; Slowly add 18g boric acid in above-mentioned mixture, stir simultaneously, and be heated to 120 degree, make boric acid dissolve completely; Above-mentioned mixture is continued to stir and heat, when temperature reaches At 120°C, keep the constant temperature reaction at this temperature for 2 hours. Then stop heating and continue stirring until the temperature drops to 100 degrees, stop stirring, and this composition is component A. When the temperature of component A of the composition drops to 80 degrees, add water containing 20 grams of sodium hydroxide and 5 grams of sodium carbonate mixed therein, while stirring, so that component A...

Embodiment 2

[0025] After heating 45g of industrial grade solid sorbitol to about 80 degrees to make it completely melted; adding 25g of industrial grade triethanolamine to the melted sorbitol and stirring evenly; slowly adding 13g of benzoic acid to the above mixture, while Stir, and be heated to 100 degree, make benzoic acid dissolve completely; Slowly add 17g boric acid in above-mentioned mixture, stir simultaneously, and be heated to 110 degree, make boric acid dissolve completely; Above-mentioned mixture is continued to stir and heat, when temperature reaches At 120°C, keep the constant temperature reaction at this temperature for 2 hours. Then stop heating and continue stirring until the temperature drops to 100 degrees, stop stirring, and this composition is component A. When the temperature of component A of the composition dropped to 70 degrees, add water containing 23 grams of sodium hydroxide and 6 sodium carbonate mixed therein, while stirring, so that component A was completel...

Embodiment 3

[0027] 35g of industrial grade solid sorbitol is heated to about 80 degrees, after making it melt completely; After adding 27g of industrial grade triethanolamine into the melted sorbitol, stir evenly; Slowly add 17g of benzoic acid in the above-mentioned mixture, simultaneously Stir, and be heated to 100 degree, make benzoic acid dissolve completely; Slowly add 21g boric acid in above-mentioned mixture, stir simultaneously, and be heated to 100 degree, make boric acid dissolve completely; Above-mentioned mixture is continued to stir and heat, when temperature reaches At 120°C, keep the constant temperature reaction at this temperature for 2 hours. Then stop heating and continue stirring until the temperature drops to 90 degrees, stop stirring, and this composition is component A. When the temperature of component A of the composition dropped to 70 degrees, add water containing 24 grams of sodium hydroxide and 5 sodium carbonate mixtures therein, while stirring, so that compon...

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PUM

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Abstract

The invention discloses a metal antirust agent and a production process thereof. The metal antirust agent includes 30-50g of sorbol, 20-29g of triethanolamine, 13-17g of benzoic acid, 18-22g of boric acid, 20-50g of potassium sorbate, 5-10g of glycerin, 5-10g of Marpropy copolymer, 15-25g of sodium hydroxide, 4-6g of sodium carbonate in every litter of the solution thereof. Comparing with technologies in prior art, the adopted raw material is in food stage and low in cost; the antirust agent is not harmful to human body in industrial use, contains no heavy metal or carcinogenic substance of sodium nitrite, and meets the environment protection requirement; the antirust agent adheres to the metal surface, without chemical reactions with the metal surface, and is capable of keeping the metal surface smooth, wet, glossy, maintaining pH value thereof in the range between 8 to 9, and reducing oxygen content of the metal surface. Thus, the metal antirust agent has great antirust performance which makes it especially suitable for rust protection between processing steps, and capable of rust protection for over a year.

Description

technical field [0001] The invention relates to a metal anticorrosion agent attached to a metal surface and a preparation method thereof, in particular to a water-soluble metal antirust agent and a preparation method thereof. Background technique [0002] Water-soluble antirust agent is the development trend of antirust agent. Chinese patent CN1084534A introduces a kind of water-soluble metal antirust agent. It is mainly composed of sodium borate and ammonium borate double salt. Because ammonia water is used in the formulation process, No matter in the industrial or experimental process, a kind of irritating smell is produced, which is not conducive to environmental protection. Chinese patent CN1488699A discloses that it is composed of waxy substances, antirust agents, adsorbents, surfactants, etc., but its water solubility is not ideal, and it is easy to cause liquid stratification, so that the antirust performance is obviously weakened. Contents of the invention [0003...

Claims

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Application Information

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IPC IPC(8): C09D135/00C09D5/08
Inventor 宋仁军程功豆忠颖刘昌权卢礼华
Owner CHERY AUTOMOBILE CO LTD
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