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Water-based antirust agent

A water-based anti-rust agent and additive technology, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of increased energy consumption, difficult to remove anti-rust oil, environmental pollution, etc., to achieve improved bonding, simple construction, and good flexibility Effect

Active Publication Date: 2014-03-05
BENGBU COLLEGE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main anti-rust method in industry is to use anti-rust oil, but the anti-rust oil is difficult to remove in the subsequent process, which not only increases energy consumption, but also causes environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Water: 60kg

[0029] OP-10: 5kg

[0030] Benzotriazole: 3 kg

[0031] Ethylene glycol: 2kg

[0032] Fluorine-modified acrylate emulsion with a solid content of 31%: 30 kg.

[0033] The preparation method is: firstly add 60 kg of water into the reaction kettle, add 5 kg of OP-10, 3 kg of benzotriazole and 2 kg of ethylene glycol under stirring, then add 30 kg of organic compound with a solid content of 31% Fluorine-modified acrylate emulsion, just stir well.

[0034] Wherein said solid content is the organic fluorine modified acrylate emulsion of 31% and is prepared according to the following steps:

[0035] (1) Add 256 mol styrene (104 g / mol), 124 mol butyl acrylate (128 g / mol), 5 mol hexafluorobutyl methacrylate (250 g / mol) into the reaction flask, and then add 10 mol N-methylolacrylamide, 0.3 mol OP-10, 1 mol sodium lauryl sulfate and 2 mol ammonium persulfate, stirred at 80 r / min for 10 min, paused for 5 min, then stirred for 10 min , pause for 5 minutes, and t...

Embodiment 2

[0040] Water: 51kg

[0041] OP-10: 3kg

[0042] Hexamethylenetetramine: 1 kg

[0043] Triethanolamine: 1 kg

[0044] Benzotriazole: 1 kg

[0045] Ethylene glycol: 3kg

[0046] Fluorine-modified acrylate emulsion with a solid content of 30%: 40 kg.

[0047] Wherein said solid content is 30% organic fluorine modified acrylate emulsion and is prepared according to the following steps:

[0048] (1) Add 256 mol styrene, 124 mol butyl acrylate, 2 mol hexafluorobutyl methacrylate into the reaction flask, then add 10 mol N-methylol acrylamide, 0.3 mol OP-10, 1 mol Sodium lauryl sulfate and 2 mol ammonium persulfate, stirred at a speed of 70 r / min for 20 min, paused for 10 min, then stirred for 20 min, paused for 10 min, and stirred for another 20 min to form a pre-emulsion;

[0049] (2) Add 50 mL of distilled water to another reaction bottle, raise the temperature to 75 ℃, add 0.7 mol OP-10, 1.6 mol sodium dodecyl sulfate, 0.4 mol ammonium persulfate and 2 mol itaconic acid in s...

Embodiment 3

[0053] Water: 55kg

[0054] OP-10: 6kg

[0055] Hexamethylenetetramine: 2 kg

[0056] Benzotriazole: 2 kg

[0057] Ethylene glycol: 5kg

[0058] Solid content of 33% organic fluorine modified acrylate emulsion: 30 kg.

[0059] Wherein said solid content is the organic fluorine modified acrylate emulsion of 33% and is prepared according to the following steps:

[0060] (1) Add 256 mol styrene, 124 mol butyl acrylate, 15 mol hexafluorobutyl methacrylate into the reaction flask, then add 10 mol N-methylol acrylamide, 0.3 mol OP-10, 1 mol Sodium lauryl sulfate and 2 mol ammonium persulfate were stirred at a speed of 85 r / min for 8 min, paused for 10 min, then stirred for 8 min, paused for 10 min, and then stirred for 8 min to form a pre-emulsion;

[0061] (2) Add 50 mL of distilled water to another reaction bottle, raise the temperature to 90 ℃, add 0.7 mol OP-10, 1.6 mol sodium lauryl sulfate, 0.4 mol ammonium persulfate and 2 mol itaconic acid in sequence to achieve the rea...

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PUM

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Abstract

The invention discloses a water-based antirust agent which consists of the following components in percentage by mass: 20-40% of film forming agent, 2-10% of corrosion inhibitor, 1-5% of auxiliary and the balance of water, wherein the film forming agent is organic fluorine-modified acrylate emulsion with solid content of 30-33%, the corrosion inhibitor is one of hexamethylenetetramine, triethanolamine, OP-10 and benzotriazole or a mixture of more, and the auxiliary is OP-10, ethylene glycol or mixture thereof. In the water-based antirust agent disclosed by the invention, the organic fluorine-modified acrylate emulsion is used as a film forming agent, and in combination with the corrosion inhibitor and the auxiliary, the binding force between a film layer and a working surface is improved; the water-based antirust agent can form a dense protective film after being applied to a steel surface, thus contact of the oxygen and moisture in the air with the steel surface is effectively isolated, and the aim of rust prevention is achieved; meanwhile, since the organic fluorine-modified acrylate emulsion has light resistance, the natural color of the steel surface can be kept unchanged; moreover, the water-based antirust agent is nonflammable and nontoxic, causes little environmental pollution, ensures simple construction and safe use, and does not influence follow-up processing of a workpiece.

Description

technical field [0001] The invention relates to an antirust agent, in particular to a water-based antirust agent for pre-corrosion of the surface of a light steel structure. technical background [0002] Metal workpieces are prone to rust during production, processing and transportation, which requires the use of anti-rust agents to form a thin film on the metal surface to prevent metal corrosion. It is difficult for metal workpieces not to be in contact with oxygen, moisture or other corrosive media in the air during operation and storage. These substances are electrochemically corroded and rusted on the surface of metal workpieces. To prevent corrosion, it is necessary to prevent the above substances from contacting metal workpieces. touch. At present, the main anti-rust method in industry is to use anti-rust oil, but the anti-rust oil is difficult to remove in subsequent processes, which not only increases energy consumption, but also causes environmental pollution. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D7/12C09D5/08C08F212/08C08F220/16C08F220/22C08F220/58C08F222/02C08F2/26C08F2/30
Inventor 秦英月王传虎董传明葛金龙朱银飞王孝虎陈玲玲
Owner BENGBU COLLEGE
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