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Metal surface rust inhibitor and preparation method thereof

A metal surface and rust inhibitor technology, applied in the field of metal surface treatment, can solve the problems of unstable bath performance, difficult to remove rust completely, short rust prevention time, etc., to improve the performance of moisture and air isolation, excellent Anti-rust protection function, the effect of improving anti-corrosion ability

Inactive Publication Date: 2014-12-17
汕头市融通机械实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the prior art has slow derusting speed, short antirust time, high working temperature, unstable bath performance and other defects, as well as problems such as difficulty in thorough derusting and still easy to rust after derusting.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A metal surface antirust agent, comprising in parts by weight: 1 part of dodecenylsuccinic acid, 1 part of benzotriazole, 3 parts of zinc naphthenate, N-ethyl-N-phenyl disulfide Zinc carbamate 2 parts, sodium oleate 1 part, ethylene glycol 3 parts, phytic acid ester 4 parts, aluminum powder 5 parts, barium sulfate 3 parts, hydroxypropyl methylcellulose 2 parts, dimethyl acrylate 2 parts of amino ethyl ester, 3 parts of sodium allyl sulfonate, 10 parts of water.

[0021] The preparation method of above-mentioned metal surface antirust agent, comprises the following steps:

[0022] Step 1, adding dodecenylsuccinic acid, benzotriazole and zinc naphthenate into water, raising the temperature to 60°C, stirring evenly, and cooling to obtain mixture I;

[0023] Step 2, add zinc N-ethyl-N-phenyldithiocarbamate, sodium oleate, ethylene glycol, phytic acid ester, aluminum powder and barium sulfate to the mixture I obtained in step 1, and stir At 60°C and a vacuum of -0.08MPa, k...

Embodiment 2

[0027] A metal surface antirust agent, comprising in parts by weight: 2 parts of dodecenylsuccinic acid, 3 parts of benzotriazole, 5 parts of zinc naphthenate, N-ethyl-N-phenyl disulfide Zinc carbamate 3 parts, sodium oleate 2 parts, ethylene glycol 5 parts, phytic acid ester 5 parts, aluminum powder 6 parts, barium sulfate 4 parts, hydroxypropyl methylcellulose 3 parts, dimethyl acrylate 3 parts of amino ethyl ester, 4 parts of sodium allyl sulfonate, 12 parts of water.

[0028] The preparation method of above-mentioned metal surface antirust agent, comprises the following steps:

[0029] Step 1, adding dodecenylsuccinic acid, benzotriazole and zinc naphthenate into water, raising the temperature to 65°C, stirring evenly, and cooling to obtain mixture I;

[0030] Step 2, add zinc N-ethyl-N-phenyldithiocarbamate, sodium oleate, ethylene glycol, phytic acid ester, aluminum powder and barium sulfate to the mixture I obtained in step 1, and stir At 70°C and a vacuum of -0.09MPa...

Embodiment 3

[0034] A metal surface antirust agent, comprising in parts by weight: 4 parts of dodecenylsuccinic acid, 5 parts of benzotriazole, 7 parts of zinc naphthenate, N-ethyl-N-phenyl disulfide Zinc carbamate 4 parts, sodium oleate 5 parts, ethylene glycol 7 parts, phytic acid ester 6 parts, aluminum powder 9 parts, barium sulfate 5 parts, hydroxypropyl methylcellulose 4 parts, dimethyl acrylate 5 parts of amino ethyl ester, 7 parts of sodium allyl sulfonate, 16 parts of water.

[0035] The preparation method of above-mentioned metal surface antirust agent, comprises the following steps:

[0036] Step 1, adding dodecenylsuccinic acid, benzotriazole and zinc naphthenate into water, raising the temperature to 75°C, stirring evenly, and cooling to obtain mixture I;

[0037] Step 2, add zinc N-ethyl-N-phenyldithiocarbamate, sodium oleate, ethylene glycol, phytic acid ester, aluminum powder and barium sulfate to the mixture I obtained in step 1, and stir At 75°C and a vacuum of -0.08MPa...

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PUM

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Abstract

The invention discloses a metal surface rust inhibitor and a preparation method thereof. The metal surface rust inhibitor comprises dodecenylsuccinic acid, benzotriazole, zinc naphthenate, N-ethyl-N-phenyl zinc dithiocarbamate, sodium oleate, ethylene glycol, inositol hexaphosphate, aluminium powder, barium sulfate, hydroxy propyl methyl cellulose, dimethylaminoethyl acrylate, sodium allysulfonate and water. The preparation method comprises the following steps: adding dodecenylsuccinic acid, benzotriazole and zinc naphthenate into water, stirring the mixture I uniformly, adding N-ethyl-N-phenyl zinc dithiocarbamate, sodium oleate, ethylene glycol, inositol hexaphosphate, aluminium powder, barium sulfate into the mixture I, adding hydroxy propyl methyl cellulose, dimethylaminoethyl acrylate and sodium allysulfonate into the mixture II, and adding rest components into the mixture III to obtain the rust inhibitor. The rust inhibitor provided by the invention can increase the corrosion resistance of a metal surface and improve the moist isolating property and the air isolating property of a protective layer.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a metal surface antirust agent and a preparation method thereof. Background technique [0002] Metal corrosion is a problem often encountered in production. Metal rust not only damages the shape, color and mechanical properties of the metal workpiece itself, but also reduces the quality of the product, and even makes the product scrapped if it is particularly serious. In 2011 my country's GDP is 7.43 trillion US dollars, and the economic loss caused by corrosion is as high as 220 to 370 billion US dollars, accounting for about 3% to 5% of the national GDP. In order to slow down the corrosion of steel and minimize the loss caused by corrosion, people have taken many anti-corrosion measures, among which the use of anti-rust liquid is the most widely used and most effective one. [0003] Antirust Fluid is a super efficient synthetic penetrant that forms a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/00
Inventor 陈凌王琰任琪程晓
Owner 汕头市融通机械实业有限公司
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