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

A metal cleaning agent, water-based technology, applied in the field of cleaning agents, can solve the problems of comparable cleaning effect of difficult-solvent cleaning agents, oxidation, rust or corrosion, and difficulty in waste liquid treatment, so as to improve the corrosion inhibition effect and reduce the cost of raw materials Effect of cost and excellent emulsifying ability

Inactive Publication Date: 2017-10-10
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, water-based metal cleaning agents still have the following problems: 1) water-based cleaning agents have a certain degreasing power for cleaning workpieces with smooth surface structures, but for workpieces with complex structures, there is a certain cleaning blind spot, For example, residues attached to the deep holes and gaps of the workpiece will indirectly lead to the implementation of subsequent processes; 2) Water-based cleaning agents have a slow degreasing speed at low temperatures, which is difficult to compare with the cleaning effect of solvent-based cleaning agents; 3) The metal parts of the workpiece, such as steel mesh, cast iron and the pins of components, are easy to oxidize, rust or corrode if they are not dried in time; 4) The waste liquid after cleaning is difficult to deal with and difficult to recycle

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A water-based metal cleaning agent, the mass percent of each component is: sodium dodecylbenzene sulfonate 1.8%, SIMULSOL OX1309L 8.5%, RHODOCLEAN MSC 1.5%, Rhodafac H66 2.5%, corrosion inhibitor (molybdenum Sodium Acetate 4.5%, PE1198LA 0.25%), Disodium EDTA 2.0%, Triethanolamine 28.75%, C740 water-based defoamer 0.82%, distilled water surplus, the specific preparation steps are as follows:

[0034] Weigh each raw material according to the above ratio, add anionic surfactant, nonionic surfactant Ⅰ (SIMULSOL OX1309L), nonionic surfactant Ⅱ (RHODOCLEAN MSC) and nonionic surfactant Ⅲ (Rhodafac H66) in sequence, and then Add corrosion inhibitor, ethylenediaminetetraacetic acid disodium salt (auxiliary), triethanolamine (organic base) and distilled water, and finally add defoamer (based on a total of 100g), and stir at room temperature for 30 minutes until the solution is clear and transparent. The water-based metal cleaning agent.

[0035]The water-based metal cleaning ag...

Embodiment 2

[0037] A water-based metal cleaning agent, the mass percentage of each component is: alkyl alkoxy ether fatty acid potassium 1.5%, SIMULSOL OX1309L 2.5%, fatty alcohol EO-PO block copolymer 5.5%, Rhodafac H662.0 %, sodium molybdate 4.5%, PE1198 LA 0.25%, disodium edetate 1.75%, triethanolamine 27.5%, C740 water-based defoamer 0.52%, distilled water surplus, its preparation method is the same as embodiment 1.

[0038] The water-based metal cleaning agent prepared in this example was tested for degreasing rate, foam performance, anti-rust performance and anti-corrosion performance, and the results are shown in Table 1.

Embodiment 3

[0040] A water-based metal cleaning agent, the mass percentage of each component is: sodium dodecylbenzene sulfonate 1.8%, SIMULSOL OX1309L 1.0%, ethylenediamine EO-PO block copolymer surfactant 7.8% , RhodafacH66 2.5%, sodium molybdate 4.5%, PE1198 LA 0.375%, EDTA disodium 2.125%, triethanolamine 30.25%, C740 water-based defoamer 0.56%, distilled water surplus, its preparation method is the same as embodiment 1.

[0041] The water-based metal cleaning agent prepared in this example was tested for degreasing rate, foam performance, anti-rust performance and anti-corrosion performance, and the results are shown in Table 1.

[0042] Table 1

[0043]

[0044] The above results show that the water-based metal cleaning agent prepared by the present invention has good cleaning effect, excellent anti-corrosion and anti-rust effect, low foaming, easy rinsing, and high stability.

[0045] The water-based metal cleaning agent prepared by the present invention has ideal cleaning eff...

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Abstract

The invention discloses a water-based metal cleaning agent. The components and their mass percentages are: 1-5% of anionic surfactant, 1-10% of non-ionic surfactant I, and 1-10% of non-ionic surfactant II. 10%, non-ionic surfactant III 1-10%, corrosion inhibitor 2-5%, auxiliary agent 1.5-2.2%, organic base 20-30.3%, defoamer 0.3-0.83%, and the balance is water. The cleaning agent effectively improves its cleaning effect by introducing a low-foaming surfactant with a high cloud point; by compounding an oxidative corrosion inhibitor and an adsorption corrosion inhibitor, its corrosion inhibition effect is improved; organic phosphine is used instead of Inorganic phosphorus, safe and environmentally friendly, has achieved zero addition of nitrite, silicate and ozone-depleting substances. The cleaning agent of the invention has good cleaning and corrosion inhibition effects, low foaming, easy rinsing, stable performance, simple preparation process and important practical application significance.

Description

technical field [0001] The invention relates to a cleaning agent, in particular to a water-based metal cleaning agent and a preparation method thereof. Background technique [0002] The development of metal cleaning agents began in the last century. With the different cleaning environments and cleaning objects and the strengthening of people's environmental protection concepts, the original metal cleaning agents were gradually replaced. Transition from the initial solvent-based cleaning agent to water-based cleaning agent; gradually transition from cleaning in acidic environment to neutral or weakly alkaline environment. At present, water-based metal cleaning agents still have the following problems: 1) water-based cleaning agents have a certain degreasing power for cleaning workpieces with smooth surface structures, but for workpieces with complex structures, there is a certain cleaning blind spot, For example, residues attached to the deep holes and gaps of the workpiece ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/26
Inventor 陈启明唐婧
Owner WUHAN INSTITUTE OF TECHNOLOGY
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