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Metal rust removing liquid and preparation method thereof

A technology for removing rust and metal, applied in the field of metal surface treatment, can solve problems such as adverse environmental impact and user health hazards, and achieve the effects of less environmental impact, less harm and milder properties

Inactive Publication Date: 2018-01-19
SUZHOU HAOYAN PRECISION MOLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Rust removal using rust removal solution is a relatively simple and quick method of rust removal. Currently, the commonly used rust removal solution contains more strong acids. Long-term use will not only cause health hazards to users, but also have adverse effects on the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A metal descaling liquid, comprising 0.2 parts of hexamethylenetetramine in parts by weight, 2 parts of triethanolamine, 1 part of fatty alcohol polyoxyethylene ether, 0.5 part of ethoxylated alkyl sodium sulfate, polyethylene glycol 2 parts 0.3 parts of polyoxyethylene lauryl ether, 0.5 parts of triethanolamine oleate, 2 parts of sodium carboxymethylcellulose, 1 part of lecithin and 40 parts of water.

[0019] The above polyethylene glycol is polyethylene glycol 800, and the lecithin is water-soluble lecithin.

[0020] The preparation method of above-mentioned metal derusting liquid, comprises the following steps:

[0021] Step 1, take required components by weight;

[0022] Step 2, disperse hexamethylenetetramine, triethanolamine, fatty alcohol polyoxyethylene ether, sodium ethoxylated alkyl sulfate, polyethylene glycol and sodium carboxymethylcellulose in water, heat and stir to disperse evenly, and heat The temperature is 50°C, the stirring speed is 160 rpm, and t...

Embodiment 2

[0025] A metal descaling liquid, comprising 0.4 part of hexamethylenetetramine, 2 parts of triethanolamine, 2 parts of fatty alcohol polyoxyethylene ether, 0.6 part of ethoxylated alkyl sodium sulfate, polyethylene glycol 4 parts by weight 0.4 parts of polyoxyethylene lauryl ether, 0.7 parts of triethanolamine oleate, 3 parts of sodium carboxymethylcellulose, 2 parts of lecithin and 45 parts of water.

[0026] The above polyethylene glycol is polyethylene glycol 800, and the lecithin is water-soluble lecithin.

[0027] The preparation method of above-mentioned metal derusting liquid, comprises the following steps:

[0028] Step 1, take required components by weight;

[0029] Step 2, disperse hexamethylenetetramine, triethanolamine, fatty alcohol polyoxyethylene ether, sodium ethoxylated alkyl sulfate, polyethylene glycol and sodium carboxymethylcellulose in water, heat and stir to disperse evenly, and heat The temperature is 53°C, the stirring speed is 170 rpm, and the mixtu...

Embodiment 3

[0032] A metal descaling liquid, comprising 0.5 part of hexamethylenetetramine, 3 parts of triethanolamine, 2 parts of fatty alcohol polyoxyethylene ether, 0.8 part of ethoxylated alkyl sodium sulfate, polyethylene glycol 4 parts in parts by weight 0.5 parts of polyoxyethylene lauryl ether, 0.8 parts of triethanolamine oleate, 4 parts of sodium carboxymethylcellulose, 2 parts of lecithin and 55 parts of water.

[0033] The above polyethylene glycol is polyethylene glycol 800, and the lecithin is water-soluble lecithin.

[0034] The preparation method of above-mentioned metal derusting liquid, comprises the following steps:

[0035] Step 1, take required components by weight;

[0036] Step 2, disperse hexamethylenetetramine, triethanolamine, fatty alcohol polyoxyethylene ether, sodium ethoxylated alkyl sulfate, polyethylene glycol and sodium carboxymethylcellulose in water, heat and stir to disperse evenly, and heat The temperature is 58°C, the stirring speed is 170 rpm, and ...

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PUM

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Abstract

The invention discloses metal rust removing liquid and a preparation method thereof. The metal rust removing liquid comprises hexamethylenetetramine, triethanolamine, fatty alcohol-polyoxyethylene ether, sodium ethoxylated alkyl sulfate, polyethylene glycol, polyoxyethylene lauryl ether, triethanolamine oleate, sodium carboxymethylcellulose, lecithin and water. The preparation method comprises thesteps that the hexamethylenetetramine, the triethanolamine, the fatty alcohol-polyoxyethylene ether, the sodium ethoxylated alkyl sulfate, the polyethylene glycol and the sodium carboxymethylcellulose are dispersed in water, heating and stirring are carried out to achieve uniform dispersion, the polyoxyethylene lauryl ether, the triethanolamine oleate and the lecithin are added into the mixture,and after stirring and mixing, the metal rust removing liquid is obtained. The metal rust removing liquid is gentle in characteristics, and rust removing is easy and rapid.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, in particular to a metal derusting solution and a preparation method thereof. Background technique [0002] Rust is a chemical reaction. When iron is left for a long time, it will rust. Tin box will rust for a long time, iron is easy to rust, in addition to its vivid chemical properties, but also has a lot to do with the external conditions. Moisture is one of the substances that make iron easy to rust. However, only water does not make iron rust, only when the oxygen in the air is dissolved in water, the oxygen reacts with iron in the environment with water, and iron oxide will be produced, which is rust. Iron rust is a kind of brownish-red material, it is not so hard as iron, it is easy to fall off, after a piece of iron gets rusty completely, its volume can expand by 8 times. If rust is not removed, this spongy rust is especially good at absorbing water, and iron will rust f...

Claims

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Application Information

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IPC IPC(8): C23G1/24
Inventor 刘浩张君张欢芬
Owner SUZHOU HAOYAN PRECISION MOLD CO LTD
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