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Aqueous antirust agent for steel and preparation method thereof

A technology of antirust agent and steel, which is applied in the field of steel surface treatment, can solve the problems of high cost, inconvenient application, and expensive price of antirust agent, and achieve the effect of long antirust time, low production cost and good environmental protection effect

Inactive Publication Date: 2015-03-11
WUXI EPIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent No. CN03111171.8 proposes a formula to replace sodium nitrite, but it is complicated to make and inconvenient to use; Large, more expensive, the cost of antirust agent is much higher than that of sodium nitrite antirust agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The water-based iron and steel antirust agent of the present embodiment, the raw material is made from the following components by weight: 8 parts of acrylamide, 6 parts of diethanolamine, 5 parts of acetyl citrate tris (2-ethylhexyl) ester, 3 parts of sodium molybdate 2 parts, 2 parts of sodium zinc dihydrogen phosphate, 5 parts of surfactant, 10 parts of sodium polyacrylate, 4 parts of hydroxypropyl methylcellulose, 5 parts of dimethyl silicone oil, 4 parts of ferrocene, 3 parts of thickener , 6 parts of polyethylene wax and 90 parts of deionized water.

[0015] The thickener is diatomaceous earth.

[0016] The surfactant is polyoxyethylene fatty alcohol ether.

[0017] The water-based antirust agent for iron and steel of the present embodiment comprises the following steps: first mix acrylamide, diethanolamine, acetyl citrate tris (2-ethylhexyl), sodium polyacrylate, simethicone, polyethylene Add wax and deionized water to a stainless steel reactor, raise the tempe...

Embodiment 2

[0020] The water-based iron and steel antirust agent of the present embodiment, the raw material is made from the following components by weight: 8 parts of acrylamide, 6 parts of diethanolamine, 5 parts of acetyl citrate tris (2-ethylhexyl) ester, 3 parts of sodium molybdate 2 parts, 2 parts of sodium zinc dihydrogen phosphate, 5 parts of surfactant, 10 parts of sodium polyacrylate, 4 parts of hydroxypropyl methylcellulose, 5 parts of dimethyl silicone oil, 4 parts of ferrocene, 3 parts of thickener , 6 parts of polyethylene wax and 90 parts of deionized water.

[0021] The thickener is bentonite.

[0022] The surfactant is polyoxyethylene fatty alcohol ether.

[0023] The water-based antirust agent for iron and steel of the present embodiment comprises the following steps: first mix acrylamide, diethanolamine, acetyl citrate tris (2-ethylhexyl), sodium polyacrylate, simethicone, polyethylene Add wax and deionized water to the stainless steel reactor, raise the temperature ...

Embodiment 3

[0026] The water-based iron and steel antirust agent of the present embodiment, the raw material is made from the following components by weight: 8 parts of acrylamide, 6 parts of diethanolamine, 5 parts of acetyl citrate tris (2-ethylhexyl) ester, 3 parts of sodium molybdate 2 parts, 2 parts of sodium zinc dihydrogen phosphate, 5 parts of surfactant, 10 parts of sodium polyacrylate, 4 parts of hydroxypropyl methylcellulose, 5 parts of dimethyl silicone oil, 4 parts of ferrocene, 3 parts of thickener , 6 parts of polyethylene wax and 90 parts of deionized water.

[0027] The thickener is aluminum silicate.

[0028] The surfactant is coconut oil fatty acid diethanolamide.

[0029] The water-based antirust agent for iron and steel of the present embodiment comprises the following steps: first mix acrylamide, diethanolamine, acetyl citrate tris (2-ethylhexyl), sodium polyacrylate, simethicone, polyethylene Add wax and deionized water to the stainless steel reactor, raise the te...

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Abstract

The invention discloses an aqueous antirust agent for steel and a preparation method thereof. The antirust agent is obtained by firstly adding acrylamide, diethanolamine, acetyl tri-2-ethylhexyl citrate, sodium polyacrylate, dimethicone, polyethylene wax and deionized water into a stainless steel reaction kettle according to a weight ratio, heating to 110+ / -5 DEG C, starting to stir, adding sodium molybdate, sodium dihydrogen phosphate and a surfactant, heating to 165-175 DEG C at a speed of 20-25 DEG C / h, reacting for 2-3 h, stopping heating, and finally adding hydroxypropyl methyl cellulose, ferrocene and a thickening agent into the stainless steel reaction kettle, and mixing uniformly for dissolving, so as to obtain the antirust agent. The antirust agent has extremely good antirust effect on steel surfaces and has the antirust time up to 6-8 months. The antirust agent is odorless, free of pollution, low in manufacture cost, convenient for construction and simple in manufacture technology, also does not contain substances harmful to human body, is nontoxic and harmless to human body, and has good environment protection effect.

Description

technical field [0001] The invention relates to a steel surface treatment technology, in particular to a water-based steel rust inhibitor and a preparation method thereof. Background technique [0002] At present, with the continuous development of industry, the use of steel is also increasing. However, during the production process or the storage process of finished products, steel plates are easily oxidized and rusted when encountering humid air and rainy days, which affects the appearance quality of products. This has brought problems to the use of steel, and the annual loss of steel due to corrosion is very alarming. In order to prevent surface corrosion, antirust treatment must be carried out; Protective oil film, so as to isolate the corrosion of metal by water vapor in the air, and achieve the purpose of rust prevention. However, the use of antirust oil requires a large amount of oil raw materials, which intensifies energy consumption and increases costs. Therefore, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/00
Inventor 尤为
Owner WUXI EPIC TECH
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