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Phosphorus-free cleaning agent for metal surface treatment and preparation method thereof

A metal surface treatment and cleaning agent technology, applied in the field of metal cleaning agents, can solve the problems of short anti-rust period, failure to achieve environmental protection, failure to meet the market, etc., and achieve the effect of low foam and strong cleaning ability

Inactive Publication Date: 2017-08-18
河南恒润昌环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing water-based metal cleaning agents, due to various reasons such as their formulations, use phosphorus-containing builders and other additives. Although they have a certain cleaning ability, the phosphorus element will cause eutrophication of the environmental water body. The discharge of waste liquid is strictly restricted, which cannot meet the requirements of the market and environmental protection
On the other hand, although the existing water-based metal cleaning agents have certain antirust properties on metal materials, the antirust period is relatively short, generally 1-3 days, which cannot satisfy the cleaning between processes and does not prevent rust for a long time. processing request

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The invention relates to a non-phosphorus cleaning agent for metal surface treatment. According to parts by weight, the cleaning agent consists of 0.5 part of sodium gluconate, 0.5 part of sodium formate, 0.5 part of sodium acetate and 1 part of tetrasodium EDTA as the main agent, and 1 part of tetrasodium EDTA is used as the main agent. 1 part of potassium hydroxide, 0.5 part of sodium carbonate and 20 parts of water are used as auxiliary agents, 1 part of polyether and 0.1 part of fatty alcohol polyoxyethylene ether are used as auxiliary agents, and finally 0.1 part of alkenyl succinic anhydride is added as an admixture and mixed and stirred. .

[0023] Further, according to parts by weight, the main ingredient also includes 3 parts of ethylene glycol and 3 parts of silane.

[0024] Further, in parts by weight, the auxiliary agent also includes 3 parts of alcohol ether hydroxy acid salt and 1 part of isomeric undecyl alcohol polyoxyethylene ether.

[0025] Further, i...

Embodiment 2

[0032] A kind of non-phosphorous cleaning agent for metal surface treatment, according to parts by weight, described cleaning agent is made of 10 parts of sodium gluconate, 10 parts of sodium formate, 10 parts of sodium acetate and 10 parts of tetrasodium EDTA as main agent, with 20 parts of hydroxide Potassium, 10 parts of sodium carbonate and 90 parts of water are used as auxiliary agents, 10 parts of polyether and 5 parts of fatty alcohol polyoxyethylene ether are used as auxiliary agents, and finally 5 parts of alkenyl succinic anhydride is added as an admixture and mixed and stirred.

[0033] Further, according to parts by weight, the main ingredient also includes 5 parts of ethylene glycol and 5 parts of silane.

[0034] Further, in parts by weight, the auxiliary agent also includes 5 parts of alcohol ether hydroxy acid salt and 3 parts of isomeric undecyl alcohol polyoxyethylene ether.

[0035] Further, in parts by weight, the admixture also includes 6 parts of one or m...

Embodiment 3

[0042] A kind of phosphorus-free cleaning agent for metal surface treatment, according to parts by weight, the main agent is composed of 6 parts of sodium gluconate, 6 parts of sodium formate, 5 parts of sodium acetate and 5 parts of tetrasodium EDTA, and the auxiliary agent is composed of 10 parts Potassium hydroxide, 5 parts of sodium carbonate and 60 parts of water, the auxiliary agent is composed of 6 parts of polyether and 3 parts of fatty alcohol polyoxyethylene ether, and the admixture is 3 parts of alkenyl succinic anhydride.

[0043] Further, according to parts by weight, the main ingredient also includes 4 parts of ethylene glycol and 4 parts of silane.

[0044] Further, in parts by weight, the auxiliary agent also includes 4 parts of alcohol ether hydroxy acid salt and 2 parts of isomeric undecyl alcohol polyoxyethylene ether.

[0045] Further, in parts by weight, the admixture also includes 5 parts of sodium petroleum sulfate, lauric acid, boric acid or one or more...

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PUM

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Abstract

The invention discloses a phosphorus-free cleaning agent for metal surface treatment. The cleaning agent comprises, by weight, 0.5-10 parts of sodium gluconate, 0.5-10 parts of sodium formate, 0.5-10 parts of sodium acetate, 1-10 parts of EDTA tetrasodium, 1-20 parts of potassium hydroxide, 0.5-10 parts of sodium carbonate and 20-90 parts of water, wherein the sodium gluconate, the sodium formate, the sodium acetate and the EDTA tetrasodium are used as main agents, and the potassium, the sodium carbonate and the water are used as auxiliary agents. 1-10 parts of polyether and 0.1-5 parts of fatty alcohol-polyoxyethylene ether are used as assistants, and finally, 0.1-5 parts of vinyl succinic anhydride are added as additives for mixing to obtain the cleaning agent. The phosphorus-free cleaning agent is high in cleaning capacity, contains no such harmful substances as phosphorus and nitrite, is low in foam, and can achieve the antirust effect on cleaned metal.

Description

technical field [0001] The invention relates to the technical field of metal cleaning agents, in particular to a phosphorus-free cleaning agent for metal surface treatment and a preparation method thereof. Background technique [0002] Cleaning oil and rust is the primary process of metal surface pretreatment, and the quality of metal surface treatment is closely related to the cleaning effect of oil and rust. In recent years, with the rapid development of industry and the improvement of automation, new requirements have been put forward for the cleaning process of metal products. The previous two processes of alkaline degreasing and acid derusting are required to be improved to alkaline degreasing and derusting once. Cleaning is complete. Water-based metal cleaners are widely used in various industries such as machinery manufacturing and repair, automobile manufacturing and repair, transportation vehicle cleaning, equipment maintenance, electroplating and painting, etc. Wa...

Claims

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Application Information

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IPC IPC(8): C23G1/14
CPCC23G1/14
Inventor 史学斌
Owner 河南恒润昌环保科技有限公司
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