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Water-based metal cleaning agent and preparation method thereof

A metal cleaning agent, water-based technology, used in the field of chemical products

Active Publication Date: 2016-08-10
WENZHOU AOYANG METAL SURFACE TREATMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems existing in metal cleaning agents in the prior art, the present invention discloses a water-based metal cleaning agent and a preparation method thereof, aiming to provide a water-based metal cleaning agent with good stability in hard water, good high and low temperature stability, Metal cleaning agent with little or no corrosion, strong degreasing ability, high degreasing rate, easy rinsing, low cost and simple and easy preparation method

Method used

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  • Water-based metal cleaning agent and preparation method thereof

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Effect test

Embodiment 1

[0027] The first technical scheme of the present invention provides a kind of water-based metal cleaning agent, and its weight percent comprises following material:

[0028]

[0029]

[0030] The present invention also provides a kind of preparation method of above-mentioned water-based metal cleaning agent in order to solve the above-mentioned technical problem, wherein, comprises the following steps:

[0031] 1), at room temperature, mix corresponding parts by weight of carbitol, isopropanol and deionized water evenly to obtain a mixed solution, then mix magnesium silicate, sodium tetrapolyphosphate, N-B-hydroxyethyl ethylenediamine triacetic acid , Sodium thiosulfate was added to the above mixture until it was completely dissolved;

[0032] 2), adding di-1,2-ethylenetriaminepentaacetic acid, N-methylimidazole, cetyltrimethylammonium bromide, sodium alkylbenzenesulfonate, sec-octyl polyoxyethylene ether, Control the temperature at 60°C and keep stirring at this temper...

Embodiment 2

[0036] The second technical scheme of the present invention provides a kind of water-based metal cleaning agent, and its percentage by weight comprises following material:

[0037]

[0038]

[0039] The present invention also provides a kind of preparation method of above-mentioned water-based metal cleaning agent in order to solve the above-mentioned technical problem, wherein, comprises the following steps:

[0040] 1), at room temperature, mix corresponding parts by weight of carbitol, isopropanol and deionized water evenly to obtain a mixed solution, then mix magnesium silicate, sodium tetrapolyphosphate, N-B-hydroxyethyl ethylenediamine triacetic acid , Sodium thiosulfate was added to the above mixture until it was completely dissolved;

[0041] 2), adding di-1,2-ethylenetriaminepentaacetic acid, N-methylimidazole, cetyltrimethylammonium bromide, sodium alkylbenzenesulfonate, sec-octyl polyoxyethylene ether, Control the temperature at 65°C and keep stirring at this...

Embodiment 3

[0045] The third technical scheme of the present invention provides a kind of water-based metal cleaning agent, and its weight percentage comprises following material:

[0046]

[0047]

[0048] The present invention also provides a kind of preparation method of above-mentioned water-based metal cleaning agent in order to solve the above-mentioned technical problem, wherein, comprises the following steps:

[0049] 1), at room temperature, mix corresponding parts by weight of carbitol, isopropanol and deionized water evenly to obtain a mixed solution, then mix magnesium silicate, sodium tetrapolyphosphate, N-B-hydroxyethyl ethylenediamine triacetic acid , Sodium thiosulfate was added to the above mixture until it was completely dissolved;

[0050] 2), adding di-1,2-ethylenetriaminepentaacetic acid, N-methylimidazole, cetyltrimethylammonium bromide, sodium alkylbenzenesulfonate, sec-octyl polyoxyethylene ether, Control the temperature at 55°C and keep stirring at this tempe...

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Abstract

The invention discloses a water-based metal cleaning agent and a preparation method thereof. The preparation method of the water-based metal cleaning agent comprises the steps that thiourea, cetyl trimethyl ammonium bromide, diphenylguanidine, magnesium silicate, carbitol, murexide, sodium thiosulfate, isopropanol, di-1,2-ethylidene penteticacid, sodium tetraphosphate, isooctyl phosphate, sodium alkyl benzene sulfonate, sec-polyoxyethylene ether, n-b-hydroxy ethidene diamine nitrilotriacetic acid, N-methylimidazole and deionized water are used as raw materials, the raw materials are added stage by stage, and the temperatures of all the stages are controlled, so that the water-based metal cleaning agent is obtained. According to the preparation method, operation is easy. According to the water-based metal cleaning agent, the stability in hard water is good, the stability under high-temperature and low-temperature conditions is good, corrosion to metal is small or avoided, the deoiling capacity is high, the degreasing rate is high, rinsing is easy, and the cost is low.

Description

technical field [0001] The invention belongs to the field of chemical products and relates to a metal cleaning agent, in particular to a water-based metal cleaning agent and a preparation method thereof. Background technique [0002] In the past, different types of solvent, acid and alkali cleaners were widely used in industry to clean metal. However, the laws and regulations promulgated abroad have banned or strictly restricted the use of many solvents. Restricted objects include volatile organic chemicals (VOC), chemicals that are potentially destructive to the ozone layer and cause global warming (ODI) and those that are harmful to humans or the environment. Restricted or prohibited solvents are 1,1,1-trichloroethane, trichlorotrifluoroethane, dichlorofluoroethane, dichloromethane, ethylene and ethylene glycol butyl ether. [0003] Most metal cleaning agents are used for pretreatment of metal processing, mainly including cleaning in parts production, maintenance cleanin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/06
CPCC23G1/066C23G1/24
Inventor 张佳斌
Owner WENZHOU AOYANG METAL SURFACE TREATMENT
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