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Water-based rust inhibitor for steel protection, and preparation method and application thereof

A water-based rust inhibitor and rust inhibitor technology, applied in the field of iron and steel rust prevention, can solve the problems of unenvironmental protection and poor rust prevention effect of rust inhibitor, and achieve the effect of ensuring rust prevention effect and safety guarantee.

Inactive Publication Date: 2017-05-31
MAANSHAN DEHONG BIOTECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the problems of poor anti-rust effect and non-environmental protection of anti-rust agents in the prior art, provide a water-based anti-rust agent for steel protection, and provide a preparation method and an application method. The agent can form a dense protective film, which is less harmful to the human body and the environment, and can be sprayed to prevent rust, easy to use and operate

Method used

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  • Water-based rust inhibitor for steel protection, and preparation method and application thereof
  • Water-based rust inhibitor for steel protection, and preparation method and application thereof
  • Water-based rust inhibitor for steel protection, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Add the following substances to 600 mL of ionized water: 2 g of ethanolamine surfactant, 5 g of trihydroxypropyl hydroxyethyl ethylenediamine, 1.0 g of 2-methylimidazole, 0.5 g of sodium dihydrogen phosphate, stir after mixing, and then add water to 1L, and add appropriate amount of phosphoric acid and ammonia water to adjust the pH value to 8.0±0.5.

Embodiment 2

[0044] Add the following substances to 600 mL of ionized water: 10 g of ethanolamine and diethanolamine mixture, 8 g of citric acid and polyethylene glycol mixture, 5.0 g of toluenetriazole, 0.5 g of sodium dihydrogen phosphate, mix and stir, and then add water to 1 L , and add appropriate amount of dilute sulfuric acid and diethylamine to adjust the pH value to 6.5±0.5.

Embodiment 3

[0046] Add the following substances to 1L of deionized water: 80 g of a mixture of ethanolamine and triethanolamine, 50 g of a mixture of citric acid and polyethylene glycol, 20.0 g of 1-(2-hydroxy)ethyl-1H-5-mercapto-tetrazolium, ethylene glycol Amine tetramethylene phosphonic acid (EDTMP) 10.0g, stir after mixing, and add benzoic acid and ethanolamine to adjust the pH value to 7.5±0.5.

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Abstract

The invention relates to a water-based rust inhibitor for steel protection, and a preparation method and application thereof. The water-based protecting solution is a water-based mixture with the active ingredients including 0.1% to 10% of surfactants, 0.1% to 5% of metal complexing agents, 0.05% to 3% of nitrogen containing five-membered heterocyclic compounds, 0.02% to 2% of phosphorous compounds and pH regulators. A nanometer protective layer is quickly formed on the surface of steel in the water-based solution, the matrix can have excellent corrosion resistance after the nanometer protective layer is formed on the surface of the metal, the water-based rust inhibitor can be recycled without acid mist which pollutes the environment, and the water-based rust inhibitor does not burn skin in use, has no stimulation or damage to human bodies, and is safe, reliable and easy to operate.

Description

technical field [0001] The invention relates to the technical field of iron and steel antirust, and more specifically, designs a water-based antirust agent for iron and steel protection, a preparation method and an application thereof. Background technique [0002] Metal machinery will inevitably come into contact with oxygen, moisture and even corrosive media in the air during operation and storage, which will cause corrosion on the metal surface. Electrochemical corrosion also occurs on some metal surfaces, which makes the rusting faster. According to relevant statistics, the metal materials and equipment scrapped due to corrosion in the world are equivalent to about 20% of the production volume every year, and the economic losses caused by metal corrosion in some developed countries account for about 2-4% of the total output value of the national economy. According to statistics, the loss caused by corrosion in my country has reached 150 billion yuan. Due to the corrosio...

Claims

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Application Information

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IPC IPC(8): C23C22/62C23C22/68
CPCC23C22/62C23C22/68
Inventor 卢建红甄崇礼祁超钟理祥赖永慧戴四根杨建平
Owner MAANSHAN DEHONG BIOTECH
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