A cleaning agent for dirt on the outer surface of a vehicle body and a method for preparing the same

Abstract

The application discloses a car body outer surface dirt cleaning agent and a preparation method thereof, and mainly comprises the following components: 5-15% of citric acid, 0.5-3% of aminosulfonic acid, 5-12% of triethanolamine, 0.1-0.5% of lan-826, 0.1-0.5% of benzotriazole, 12-24% of fatty alcohol polyoxyethylene ether, 5-10% of isomeric tridecanol ether, 2-5% of decyl glucoside, 0.1-0.5% of corrosion inhibitor, and deionized water added to 100%. The product is a compound product, is suitable for various cleaning processes such as scrubbing, brushing, and automatic train cleaning machine, has strong cleaning capacity, can clean various dirt in a targeted manner, is mild in performance, has no influence on the surface paint of the car body, contains the corrosion inhibitor polyaspartic acid, belongs to a precipitation film type corrosion inhibitor, mainly inhibits cathodic reaction, has good corrosion inhibition effect, can ensure that the car body metal is basically not corroded on the basis of strong cleaning capacity, and the product does not contain controlled substance components which are toxic and harmful to human bodies and the environment, and is an ideal environment-friendly cleaning agent.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of industrial cleaning agents, in particular to a cleaning agent for the outer surface of a vehicle body and a preparation method thereof. BACKGROUND

[0002] With the continuous development of the economy and society, high-speed trains have become the main means of transportation in today's society (such as EMU trains, subways, light rails, maglevs, high-speed rails, etc.). The outer surface of the train body is easily contaminated during operation, such as dust in the air, carbon powder and iron filings generated by electric arc and wheel-rail friction, rust water falling from iron bridges or racks, insects and their excrement, and oxidation caused by long-term contact of the vehicle body surface with the air. These factors cause various dirt to combine together to form mixed dirt, and the contamination of the vehicle body surface usually appears as overall yellowing, local yellow spots and strip-shaped flow marks, which seriously affects the appearance of the train and brings great inconvenience to the later maintenance of the vehicle, increasing the vehicle maintenance and operation cost. Most of the cleaning agents for the outer surface of the train on the market are acidic or alkaline cleaning agents, and the cleaning method generally uses a spraying method to clean. Although there is a certain effect after cleaning, these cleaning agents cause damage to the train surface paint and vehicle body substrate during cleaning. Although conventional neutral cleaning agents do not cause damage to the train surface paint and vehicle body substrate, the cleaning effect does not meet the requirements.

[0003] Chinese patent application No. 200910072912.9 discloses an environmentally friendly cleaning agent for high-speed trains, which comprises 40-60% of a surfactant, 20-30% of a chelating agent, 5-10% of an anti-corrosion agent, and 5-10% of an inorganic base. The surfactant is sodium dodecyl benzene sulfonate, the chelating agent is disodium ethylenediaminetetraacetate, the anti-corrosion agent is urotropine, and the inorganic base is sodium metasilicate. The sodium dodecyl benzene sulfonate used in the A material of the cleaning agent has poor hard water resistance, and the dirt removal performance decreases with the hardness of the water, so the cleaning effect on general dirt is fair, but the dirt removal ability for long-term accumulated dirt on the outer surface of the vehicle body is quite low. In addition, sodium dodecyl benzene sulfonate has strong irritation and strong skin irritation.

[0004] Chinese invention patent application No. 201910431840.6 discloses a high-speed train neutral cleaning agent and a preparation method thereof. The high-speed train neutral cleaning agent is composed of the following components by weight: anionic surfactant 4-6 parts, non-ionic surfactant 8-12 parts, complexing agent 6-10 parts, dispersing agent 0.5-2 parts, pH regulator 3-8 parts, deionized water 62-78.5 parts. The anionic surfactant includes alcohol ether carboxylate AEC and fatty acid methyl ester sulfonate, and the complexing agent includes imino disuccinic acid sodium and methyl glycine diacetic acid trisodium. The high-speed train neutral cleaning agent can effectively remove yellow spots, water marks, dust and oil stains on the outer surface of high-speed trains, and solve the problems of corrosion of the train body, pollution of the environment and harm to health during the cleaning process of the existing cleaning agent. The cleaning agent prepared by the invention has insufficient cleaning capacity and cannot clean various stains. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a high-speed train body surface stain cleaning agent that does not damage the paint and can achieve good cleaning effect. It can effectively remove yellow spots, water marks, dust and oil stains on the outer surface of high-speed trains, and solve the problems of corrosion of the paint, pollution of the environment and harm to health during the cleaning process of the existing cleaning agent.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution. A train body surface stain cleaning agent, characterized in that the raw materials and mass percentage are as follows: citric acid 5-15%, aminosulfonic acid 0.5-3%, triethanolamine 5-12%, lan-826 0.1-0.5%, benzotriazole 0.1-0.5%, fatty alcohol polyoxyethylene ether 12-24%, isomeric tridecanol ether 5-10%, decyl glucoside 2-5%, corrosion inhibitor 0.1-0.5%, and deionized water added to 100%.

[0007] Preferably, the corrosion inhibitor is polyaspartic acid.

[0008] Another purpose of the present application is a preparation method of the train body surface stain cleaning agent, which is carried out according to the following steps: adding deionized water into a reaction kettle, then adding citric acid, aminosulfonic acid, triethanolamine, lan-826, benzotriazole, stirring for 20-25 minutes until the liquid is uniformly mixed, then sequentially adding fatty alcohol polyoxyethylene ether, isomeric tridecanol ether, decyl glucoside, corrosion inhibitor, and the rest of deionized water, stirring until transparent.

[0009] Compared with the prior art, the present application has the following advantages:

[0010] The product is a compound product, suitable for various cleaning processes such as scrubbing, brushing, automatic train cleaning machine, etc.; the product has strong cleaning ability, can clean various dirt in a targeted manner, has mild performance, has no influence on the surface paint of the train body; the product contains the corrosion inhibitor polyaspartic acid, belongs to the precipitation film type corrosion inhibitor, mainly inhibits the cathode reaction, has good corrosion inhibition effect, can ensure that the train body metal is basically not corroded on the basis of strong cleaning, and meanwhile, the product does not contain controlled substance ingredients which are toxic and harmful to human body and environment, is an ideal environment-friendly cleaning agent. DETAILED DESCRIPTION

[0011] The embodiments of the present application will be described in detail below with specific examples, so that how the present application solves the technical problems and achieves the technical effects by means of technology can be fully understood and implemented. If not specifically indicated, the technical means adopted in the examples are conventional means familiar to those skilled in the art, and the raw materials adopted are commercially available. Various processes and methods not described in detail are conventional methods known in the art.

[0012] The preparation steps of the train body surface dirt cleaning agent involved in the present application are as follows: deionized water is added into a reaction kettle, then citric acid, aminosulfonic acid, triethanolamine, lan-826 and benzotriazole are added, stirring is conducted for 20-25 minutes until the liquid is uniformly mixed, then fatty alcohol polyoxyethylene ether, isomeric tridecanol ether, decyl glucoside, corrosion inhibitor and the rest of deionized water are sequentially added, and stirring is uniformly conducted until the liquid is transparent. EMBODIMENT

[0013] Citric acid 7%, aminosulfonic acid 1%, triethanolamine 8%, lan-826 0.3%, benzotriazole 0.4%, fatty alcohol polyoxyethylene ether 15%, isomeric tridecanol ether 6%, decyl glucoside 3%, polyaspartic acid 0.3%, deionized water 59%. EMBODIMENT

[0014] Citric acid 10%, aminosulfonic acid 1%, triethanolamine 7%, lan-826 0.4%, benzotriazole 0.3%, fatty alcohol polyoxyethylene ether 16%, isomeric tridecanol ether 8%, decyl glucoside 3%, polyaspartic acid 0.3%, deionized water 54%. EMBODIMENT

[0015] Citric acid 12%, aminosulfonic acid 2%, triethanolamine 5%, lan-826 0.5%, benzotriazole 0.5%, fatty alcohol polyoxyethylene ether 20%, isomeric tridecanol ether 5%, decyl glucoside 5%, polyaspartic acid 0.3%, deionized water 49.7%. EMBODIMENT

[0016] Citric acid 5%, sulfamic acid 0.5%, triethanolamine 12%, lan-826 0.5%, benzotriazole 0.5%, fatty alcohol polyoxyethylene ether 24%, isomeric tridecanol ether 10%, decyl glucoside 3%, polyaspartic acid 0.5%, deionized water added to 44%.

[0017] Comparative Example 1 is a commercially available brand of cleaning agent.

[0018] The cleaning agents of Examples 1-4 and Comparative Example 1 were tested, and the test results are shown in Table 1 below.

[0019] Table 1

[0020]

[0021] By comparing the test results, the performance of the vehicle body outer surface dirt cleaning agent prepared in the examples of the present application is better than that of the commercially available similar products. The product of the present application has strong cleaning power and can ensure that the vehicle body metal is basically not corroded on the basis of strong cleaning power.

[0022] The above description is only an embodiment of the present application. It should be noted that for ordinary skilled in the art, various changes, modifications, replacements and variations can be made to the embodiments without departing from the technical principles of the present application. These changes, modifications, replacements and variations should also be considered as the protection scope of the present application.

Claims

1. A vehicle exterior surface dirt cleaner, characterized in that, The raw materials and their weight percentages are as follows: citric acid 5-15%, aminosulfonic acid 0.5-3%, triethanolamine 5-12%, lan-826 0.1-0.5%, benzotriazole 0.1-0.5%, fatty alcohol polyoxyethylene ether 12-24%, isotridecyl ether 5-10%, decyl glucoside 2-5%, corrosion inhibitor 0.1-0.5%, and deionized water to 100%. The corrosion inhibitor is polyaspartic acid.

2. A method for preparing a vehicle exterior surface dirt cleaning agent as described in claim 1, characterized in that, Proceed as follows: Add deionized water to the reactor, then add citric acid, aminosulfonic acid, triethanolamine, LAN-826, and benzotriazole. Stir for 20-25 minutes until the liquid is evenly mixed. Then add fatty alcohol polyoxyethylene ether, isotridecyl alcohol ether, decyl glucoside, corrosion inhibitor, and the remaining deionized water in sequence. Stir until the mixture is clear.

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