Water-based rust-removal and rust-prevention solution and preparation method thereof

A rust-proof liquid, water-based technology, applied in the direction of metal material coating process, can solve the problems of carcinogenicity, flammability and explosion, easy oxidation and discoloration, achieve strong scale inhibition and dispersibility, simple production process, The effect of extending the temperature range

Inactive Publication Date: 2018-05-11
HENAN ZHILIAN HUANYU INTPROP OPERATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary anti-rust liquid contains a large amount of sodium nitrite, which is carcinogenic and is not conducive to environmental protection and human health. However, the use of humectants to prolong the life of anti-rust liquid brings the disadvantages of sticking hands and dust, and cannot prevent rust for a long time
Although the general dura-film anti-rust oil is suitable for long-term anti-rust, and the film is transparent and beautiful, there are few types of colorless and transparent resins, which are unstable and easy to oxidize and change color. They also need organic solvents to dissolve, which brings the danger of flammability and explosion. Not conducive to environmental protection and health
The general anti-rust oil uses mineral oil, which is difficult to degrade, and it will also cause the problem of difficult degreasing when used for short-term anti-rust

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] The present embodiment provides a water-based rust-removing and anti-rust solution, which includes the following raw materials in parts by weight: 2 parts of citric acid, 2 parts of sodium lauryl sulfate, 2 parts of tartaric acid, 1 part of disodium edetate, 2 parts of polyaspartic acid, 0.4 parts of oxidized starch, 5 parts of trimethyl cetyl ammonium bromide, 10 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 1 part of OP-10, 1 part of carboxymethyl cellulose , 2 parts of mesoporous silica, 10 parts of ethylene glycol, 15 parts of propylene glycol butyl ether, and 60 parts of water.

[0011] This embodiment provides a method for preparing the water-based rust removal and antirust solution provided in the above embodiments, which includes the following steps: according to the above parts by mass, first heat the water to 60°C, and then add tartaric acid and sodium lauryl sulfate , polyaspartic acid, oxidized starch, trimethyl cetyl ammonium bromide, disodiu...

Embodiment 2

[0013] This embodiment provides a water-based rust-removing and anti-rust liquid, which includes the following raw materials in parts by weight: 3 parts of citric acid, 3 parts of sodium lauryl sulfate, 2.5 parts of tartaric acid, 1.5 parts of disodium ethylenediaminetetraacetic acid, polytetramethylene 3 parts of aspartic acid, 0.5 parts of oxidized starch, 6 parts of trimethyl cetyl ammonium bromide, 11 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 1.5 parts of OP-10, 1.5 parts of carboxymethyl cellulose, medium 3 parts of porous silica, 12 parts of ethylene glycol, 16 parts of propylene glycol butyl ether, and 65 parts of water.

[0014] This embodiment also provides a preparation method of the above-mentioned water-based rust removal and antirust solution, which is basically the same as the preparation method of the water-based rust removal and antirust solution provided in Example 1, except that the parts by mass of raw materials are different .

Embodiment 3

[0016] This embodiment provides a water-based rust-removing and anti-rust solution comprising the following raw materials in parts by weight: 3 parts of citric acid, 4 parts of sodium lauryl sulfate, 3 parts of tartaric acid, 2 parts of disodium ethylenediaminetetraacetic acid, polystyrene 4 parts of aspartic acid, 0.8 parts of oxidized starch, 7 parts of trimethylhexadecyl ammonium bromide, 12 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 1.5 parts of OP-10, 2 parts of carboxymethyl cellulose, medium 4 parts of porous silica, 14 parts of ethylene glycol, 17 parts of propylene glycol butyl ether, and 70 parts of water.

[0017] This embodiment also provides a preparation method of the above-mentioned water-based rust removal and antirust solution, which is basically the same as the preparation method of the water-based rust removal and antirust solution provided in Example 1, except that the parts by mass of raw materials are different .

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PUM

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Abstract

The invention provides a water-based rust-removal and rust-prevention solution. The water-based rust-removal and rust-prevention solution comprises the following raw materials in parts by weight: 2-6parts of citric acid, 2-8 parts of lauryl sodium sulfate, 2-4 parts of tartaric acid, 1-2 parts of ethylene diamine tetraacetic acid, 2-6 parts of polyaspartic acid, 0.4-1.2 parts of oxidized starch,5-10 parts of cetyl-trimethyl ammonium bromide, 10-15 parts of ethoxylated lauryl alcohol sulfate, 1-2 parts of OP-10, 1-3 parts of carboxymethyl cellulose, 2-8 parts of mesoporous silica, 10-20 partsof ethylene glycol, 15-20 parts of propanediol butyl ether and 60-90 parts of water. The invention further provides a preparation method for the water-based rust-removal and rust-prevention solution.The water-based rust-removal and rust-prevention solution provided by the invention has various functions such as rust removal, decontamination, phosphorization and passivation, and is short in rustremoval time, is long in rust-prevention time and is free of corrosion on metal during reaction at the normal temperature.

Description

[0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a water-based rust-removing and anti-rust liquid and a preparation method thereof. Background technique [0002] Rust prevention on metal surfaces is an important subject in industrial production. Traditional antirust liquids and antirust oils have both advantages and disadvantages. Ordinary anti-rust liquid contains a large amount of sodium nitrite, which is carcinogenic and is not conducive to environmental protection and human health. However, the use of humectants to prolong the life of anti-rust liquid brings the disadvantages of sticking hands and dust, and cannot prevent rust for a long time . Although the general dura-film anti-rust oil is suitable for long-term anti-rust, and the film is transparent and beautiful, there are few types of colorless and transparent resins, which are unstable and easy to oxidize and change color. They also need organic solvents to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/06C23C22/48
CPCC23G1/06C23C22/48
Inventor 计富宝余成琴张微微
Owner HENAN ZHILIAN HUANYU INTPROP OPERATION CO LTD
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