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A kind of water-based environmental protection metal cleaning agent and preparation method thereof

A metal cleaning agent, water-based technology, applied in the field of metal cleaning, can solve the problems of water-based cleaning agent not easy to rinse, easy to corrode, and high cost of cleaning agent, and achieve good metal cleaning effect, excellent emulsification, and easy rinsing.

Inactive Publication Date: 2021-02-05
青岛恒信达化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, water-based cleaning agents are used more and more widely, but water-based cleaning agents still have problems such as not being easy to rinse and easily causing environmental pollution.
[0003] At present, there are different water-based metal cleaning agents. Patent CN 104711616 B discloses a water-based metal cleaning agent, including anionic surfactant, nonionic surfactant I, nonionic surfactant II, nonionic surfactant Activator III, corrosion inhibitors, additives, organic bases, defoamers and water, but the cost of the cleaning agent is relatively high, and it is easy to corrode non-aluminum and non-steel metals, etc.
Patent CN 108486588 A discloses a water-based metal cleaning agent, including sodium silicate, sodium tripolyphosphate, fatty alcohol polyoxyethylene ether, acetyl tartar, lauric acid diethanolamide, sodium benzoate, triethanolamine, three Ethanolamine oleic acid soap, borax, defoamer, foam stabilizer, but the cleaning effect is poor, the cleaning speed is slow, and there are more residues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A water-based environmentally friendly metal cleaning agent, the components and their quality are: polymer surfactant 1025kg, 2-2-octyl sulfosuccinate sodium salt 20kg and fatty alcohol polyoxyethylene ether AEO9 20kg, EDTA 10kg and poly Carboxylic acid 5kg, sodium nitrite 5kg, polyether 2kg, silicone oil 1kg, essence 0.1kg, triethanolamine 30kg, deionized water 1000kg;

[0037] Each monomer of the polymer surfactant and its quality are: 70kg of lauryl acrylate, 10kg of maleic anhydride, 80kg of polyethylene glycol monomethyl ether acrylate AM-130G, 20kg of sodium styrene sulfonate, oleic acid Diethanolamide 10kg, benzoyl peroxide 15kg, diethylene glycol dimethyl ether 470kg, deionized water 350kg.

[0038] The molecular weight of polyethylene glycol monomethyl ether in the polyethylene glycol monomethyl ether acrylate AM-90G is 400.

[0039] The molecular weight of the polymeric surfactant in Example 1 is 5000, and the molecular weight is measured by a gel chromatogra...

Embodiment 2

[0053] A water-based environmentally friendly metal cleaning agent, the components and their mass percentages are: polymer surfactant 40%, small molecule compound surfactant 3%, chelating agent 0.6%, corrosion inhibitor 0.1%, disinfectant Foaming agent 0.2%, auxiliary agent 0.006%, neutralizing agent 1%, deionized water 55%;

[0054] The monomers of the polymer surfactant and their mass percentages are: fatty alcohol acrylate 6%, maleic anhydride 0.9%, polyethylene glycol monomethyl ether acrylate 9%, sodium styrene sulfonate 3% %, oleic acid diethanolamide 1.1%, initiator 2%, diethylene glycol ether hydrophilic solvent 42%, deionized water 36%.

[0055] The fatty alcohol acrylate includes, but is not limited to, one or more mixtures of lauryl acrylate, tridecyl acrylate, myristyl acrylate, cetyl acrylate, and stearyl acrylate.

[0056] The molecular weight of polyethylene glycol monomethyl ether in the polyethylene glycol monomethyl ether acrylate includes but is not limited...

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PUM

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Abstract

The invention provides a water-based environment-friendly metal cleaning agent, which includes a polymer surfactant, a small molecular compound surfactant, a chelating agent, a corrosion inhibitor, a defoamer, an auxiliary agent, a neutralizing agent, and deionized water; The polymer surfactant comprises fatty alcohol acrylate, maleic anhydride, polyethylene glycol monomethyl ether acrylate, sodium styrene sulfonate, oleic acid diethanolamide, initiator, diethylene glycol ethers hydrophilic solvents, deionized water. The invention obtains a water-based environment-friendly metal cleaning agent which is non-corrosive to metal, quick to clean, easy to rinse, and pollution-free by preparing a polymer surfactant and compounding a low-molecular surfactant and other functional additives.

Description

technical field [0001] The invention belongs to the field of metal cleaning, and in particular relates to a water-based environment-friendly metal cleaning agent and a preparation method thereof. Background technique [0002] Metal cleaners are used for pretreatment of metal processing, mainly including cleaning in parts production, maintenance cleaning, etc., and are widely used in industrial production. Metal cleaning agents include acidic chemical cleaning agents, alkaline chemical cleaning agents, solvent-based cleaning agents, semi-water-based cleaning agents, water-based cleaning agents, etc. Among them, acidic cleaning agents have been basically eliminated due to their corrosion to metals, pollution to the environment, and harm to the human body. Alkaline cleaning agents have a general cleaning effect on mineral oil, and need to be heated, and are corrosive to non-ferrous metals such as copper, lead, and zinc. Solvent-based cleaning agents are expensive, cannot clea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/26
CPCC23G1/26
Inventor 孟祥锋孟祥景杨义会赵子超
Owner 青岛恒信达化工有限公司