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A water-based antirust agent

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

Active Publication Date: 2016-01-20
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: 3kg

[0031] Ethylene glycol: 2kg

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

[0033] The preparation method is as follows: first add 60kg of water to the reactor, add 5kg OP-10, 3kg of benzotriazole and 2kg of ethylene glycol with stirring, then add 30kg of organic fluorine modified acrylate with a solid content of 31% for emulsification Mix it evenly.

[0034] The organic fluorine modified acrylate emulsion with a solid content of 31% is prepared according to the following steps:

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

Embodiment 2

[0040] Water: 51kg

[0041] OP-10: 3kg

[0042] Hexamethine tetramine: 1kg

[0043] Triethanolamine: 1kg

[0044] Benzotriazole: 1kg

[0045] Ethylene glycol: 3kg

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

[0047] The organic fluorine modified acrylate emulsion with a solid content of 30% is prepared according to the following steps:

[0048] (1) Add 256mol styrene, 124mol butyl acrylate, 2mol hexafluorobutyl methacrylate into the reaction flask, and then add 10mol N-methylolacrylamide, 0.3molOP-10, 1mol sodium lauryl sulfate and 2mol ammonium persulfate, stir at 70r / min for 20min, pause for 10min, then stir for 20min, pause for 10min, and stir for 20min to form a pre-emulsion;

[0049] (2) Add 50mL of distilled water to another reaction flask, heat up to 75℃, add 0.7mol OP-10, 1.6mol sodium lauryl sulfate, 0.4mol ammonium persulfate and 2mol itaconic acid in sequence, slowly when reaching the reaction temperature For the pre-emulsion prepared...

Embodiment 3

[0053] Water: 55kg

[0054] OP-10: 6kg

[0055] Hexamethine tetramine: 2kg

[0056] Benzotriazole: 2kg

[0057] Ethylene glycol: 5kg

[0058] The solid content is 33% organic fluorine modified acrylate emulsion: 30kg.

[0059] The organic fluorine modified acrylate emulsion with a solid content of 33% is prepared according to the following steps:

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

[0061] (2) Add 50mL of distilled water to another reaction flask, heat up to 90℃, add 0.7mol OP-10, 1.6mol sodium lauryl sulfate, 0.4mol ammonium persulfate and 2mol itaconic acid in sequence, slowly when it reaches the reaction temperature For the pre-emulsion pr...

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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 a rust inhibitor, in particular to a water-based rust inhibitor for pre-corrosion on the surface of a light steel structure. technical background [0002] Metal workpieces are prone to rust during production, processing and transportation. This requires the use of rust inhibitors to form a thin film on the metal surface to prevent metal corrosion. It is difficult for metal workpieces not to come into contact with oxygen, moisture or other corrosive media in the air during operation and storage. These substances are electrochemically corroded and rust on the surface of metal workpieces. To prevent corrosion, the above substances and metal workpieces must be prevented contact. At present, the main anti-rust method in the industry is to use anti-rust oil, but it is difficult to remove the anti-rust oil in the subsequent process, which not only increases energy consumption, but also causes environmental pollution. [0003] Fluorinated a...

Claims

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Application Information

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Patent Type & Authority Patents(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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