CN110373277B

CN110373277B - Train cleaning agent

Info

Publication number: CN110373277B
Application number: CN201910604175.6A
Authority: CN
Inventors: 余勇
Original assignee: Jiangxi Nengjie Chemical Co ltd
Current assignee: Jiangxi Nengjie Chemical Co ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2021-03-12
Anticipated expiration: 2039-07-05
Also published as: CN110373277A

Abstract

The invention discloses a train cleaning agent and a preparation method thereof, belonging to the technical field of cleaning agents, wherein the train cleaning agent comprises the following raw materials: sodium nitrilotriacetate, alkylphenol ethoxylates, alkyl glucoside, isomeric alcohol polyoxyethylene ether, triethanolamine, propylene glycol block polyether, a whitening agent, an antifoaming agent, essence, citric acid and water. The train cleaning agent disclosed by the invention is simple to prepare, has obvious effects of dissolving, permeating and stripping common pollutants such as mud dirt, oil dirt, grease, oil dirt, rust dirt and the like on a high-speed railway train under the synergistic effect of the raw material components through proper weight proportion, is good in cleaning effect and high in speed, does not damage paint and base materials on the surface of a locomotive, does not have pungent smell, does not contain chromate, nitrite and phosphate, is environment-friendly in used reagents, is not easy to cause water pollution, can meet the cleaning modes and cleaning requirements of different parts of the train, is good in cost performance, economical to use and simple and convenient to operate.

Description

Train cleaning agent

Technical Field

The invention belongs to the technical field of cleaning agents, and particularly relates to a train cleaning agent.

Background

With the continuous development of the economic society, trains become main transportation tools of the current society, such as various motor train unit trains, intercity rail trains, subways, maglev trains and the like, the outer surfaces of train bodies of the trains are inevitably polluted in the running process, for example, carbon powder, scrap iron, oil stains and the like generated by wheel-rail friction are often combined together to form mixed dirt due to the influence of time factors, and oil stains and the like on the surfaces of various hub surfaces, solidified stains and the like on the surfaces of mechanical parts of the hubs are also formed; seriously affecting the indoor sanitation and the beautiful appearance of the train.

The train outer carriage is used as an important component, the requirement on the appearance of the train is higher and higher along with the rapid development of urban construction, and the brightness and the thickness of the train paint surface are greatly reduced due to the fact that the train is exposed in the air for a long time and is influenced by adverse factors such as ultraviolet irradiation, rain wash, sand erosion and the like, so that the train paint surface is gradually yellow and dull, an oxide layer is formed, and the service life of the train is shortened. In addition, the train generates a strong electrostatic layer due to air friction during running, and adsorbs a large amount of dust, oil stain and chemical dust, and a hard traffic film is formed after a long time. If the traffic film cannot be removed in time, the paint surface of the train is easy to oxidize, corrode and peel off. However, the outer skins of the motor train unit train and the high-speed rail train are both paint coatings, and strong alkali and strong acid corrode the paint and window glass, so that the paint and the glass are discolored, rough and dull; strong alkali and strong acid also have strong corrosivity to human skin, and are unsafe to use; strong alkali and strong acid corrode the cleaning machine, the track and the floor of the cleaning machine chamber; the strong alkaline and strong acid cleaning agent is not environment-friendly and can not be directly discharged. Along with the rapid development of the rail transit industry, the number of running trains is greatly increased, the use amount of products for cleaning and maintaining the outside of the train is also greatly increased, and the market demand is huge. Therefore, the development of a high-quality and high-efficiency cleaning agent product for cleaning and maintaining the train is urgently needed.

Chinese patent (application number: 201610573054.6) discloses a multifunctional cleaning agent, which comprises the following components in percentage by weight: 50-80% of dichloromethane, 10-20% of C5-C7 hydrocarbon, 1-10% of ethanol and 5-20% of methyl nonafluorobutyl ether. The multifunctional cleaning agent disclosed by the invention is relatively rich in volatile solvent, is not environment-friendly, has certain toxicity and is unsafe to use.

The cleaning agent for the common oil stains in the market at present is difficult to clean various maintenance mark stroke lines of motor trains, subway (including light rails) trains and maglev trains of rail transit trains, various hub surface sealing paint and oil stains, and surface oil stains such as solidified stains on the surfaces of mechanical parts of the hub surface sealing paint and oil stains, and the surface of a train body is extremely easy to damage when the conventional cleaning agent is used for cleaning the surface of the train body. But also has poor cleaning effect on paint, oil stain and the like on the train.

Disclosure of Invention

The invention mainly aims to provide the train cleaning agent which has cheap and easily-obtained raw materials, is simple to operate, is economic and environment-friendly, is suitable for large-scale production, has good cleaning effect and high speed, and does not damage paint and base materials on the surface of a train.

In order to solve the technical problems, the invention adopts the technical scheme that:

a train cleaning agent comprises the following raw materials: sodium nitrilotriacetate, alkylphenol ethoxylates, alkyl glucoside, isomeric alcohol polyoxyethylene ether, triethanolamine, propylene glycol block polyether, a whitening agent, an antifoaming agent, essence, citric acid and water.

Preferably, the train cleaning agent comprises the following raw materials in parts by weight: 2-5 parts of sodium nitrilotriacetate, 4-6 parts of alkylphenol polyoxyethylene, 13-17 parts of alkyl glucoside, 8-12 parts of isomeric alcohol polyoxyethylene ether, 2-5 parts of triethanolamine, 8-12 parts of propylene glycol block polyether, 0.1-0.5 part of whitening agent, 0.1-0.5 part of defoaming agent, 0.1-0.5 part of essence, 2-5 parts of citric acid and 45-55 parts of water.

Preferably, the alkylphenol polyoxyethylene is nonylphenol polyoxyethylene and/or octylphenol polyoxyethylene.

Preferably, the alkyl glucoside is a C6-C12 alkyl glucoside.

Further preferably, the alkyl glucoside is a C8-C10 alkyl glucoside.

Preferably, the brightener is fluorescent brightener CBS-X and/or fluorescent brightener BA.

Preferably, the defoamer is a silicone defoamer. The organic silicon defoaming agent can be a commercially available Dow Corning defoaming agent with the model number of AFE1410 or AFE 1427; the model of the defoaming agent is DF-2121 from Defeng defoaming agent Co., Ltd, Dongguan city.

In the invention, the essence mainly plays a role in enhancing the fragrance, and can be any commercially available essence.

Preferably, the essence comprises one or more of mint essence, jasmine essence, cumquat essence, lemon essence, lavender essence, strawberry essence, juicy peach essence and cherry essence.

Preferably, the train cleaning agent also comprises 2-5 parts by weight of cleaning auxiliary agent.

Preferably, the cleaning assistant is modified xanthan gum and/or modified cationized cellulose.

Further preferably, the cleaning aid consists of 65 to 75 wt% of modified xanthan gum and 25 to 35 wt% of modified cationized cellulose.

The preparation raw materials of the modified xanthan gum comprise 95-105g of xanthan gum, 0.3-0.5g of N- (2-aminoethyl) -3-aminopropyltrimethoxysilane and 3-4g of ethanol.

The preparation raw materials of the silane modified cationized cellulose comprise 45-55g of hydroxyethyl cellulose, 23-25g of glycidol trimethyl ammonium chloride and 1-1.5g of 3-aminopropyl triethoxysilane.

The invention also provides a preparation method of the train cleaning agent, which comprises the following steps: adding sodium nitrilotriacetate into water, stirring and mixing uniformly, adding alkylphenol polyoxyethylene, alkyl glucoside, isomeric alcohol polyoxyethylene ether and propylene glycol block polyether, stirring and mixing uniformly, adding triethanolamine, stirring and mixing uniformly, and finally adding the rest raw materials, stirring and mixing uniformly to obtain the finished product.

Has the advantages that: the train cleaning agent disclosed by the invention is simple to prepare, has obvious effects of dissolving, permeating and stripping common pollutants such as mud dirt, oil dirt, grease, oil dirt, rust dirt and the like on a high-speed railway train under the synergistic effect of the raw material components through proper weight proportion, is good in cleaning effect and high in speed, does not damage paint and base materials on the surface of a locomotive, does not have pungent smell, does not contain chromate, nitrite and phosphate, is environment-friendly in used reagents, is not easy to cause water pollution, can meet the cleaning modes and cleaning requirements of different parts of the train, is good in cost performance, economical to use and simple and convenient to operate.

Detailed Description

The technical features of the technical solutions provided by the present invention are further clearly and completely described below with reference to the specific embodiments, and the scope of protection is not limited thereto.

The words "preferred", "further preferred", and the like, in the present invention, refer to embodiments of the invention that may provide certain benefits, under certain circumstances. However, other embodiments may be preferred, under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.

When a range of values is disclosed herein, the range is considered to be continuous and includes both the minimum and maximum values of the range, as well as each value between such minimum and maximum values. Further, when a range refers to an integer, each integer between the minimum and maximum values of the range is included. Further, when multiple range-describing features or characteristics are provided, the ranges may be combined. In other words, unless otherwise indicated, all ranges disclosed herein are to be understood to encompass any and all subranges subsumed therein. For example, a stated range from "1 to 10" should be considered to include any and all subranges between the minimum value of 1 and the maximum value of 10. Exemplary subranges of the range 1 to 10 include, but are not limited to, 1 to 6.1, 3.5 to 7.8, 5.5 to 10, and the like.

In one embodiment, the train cleaning agent comprises the following raw materials in parts by weight: 2-5 parts of sodium nitrilotriacetate, 4-6 parts of alkylphenol polyoxyethylene, 13-17 parts of alkyl glucoside, 8-12 parts of isomeric alcohol polyoxyethylene ether, 2-5 parts of triethanolamine, 8-12 parts of propylene glycol block polyether, 0.1-0.5 part of whitening agent, 0.1-0.5 part of defoaming agent, 0.1-0.5 part of essence, 2-5 parts of citric acid and 45-55 parts of water.

In one embodiment, the train cleaning agent comprises the following raw materials in parts by weight: 3.5 parts of sodium nitrilotriacetate, 5 parts of alkylphenol polyoxyethylene, 15 parts of alkyl glucoside, 10 parts of isomeric alcohol polyoxyethylene ether, 3 parts of triethanolamine, 10 parts of propylene glycol block polyether, 0.2 part of brightener, 0.15 part of defoamer, 0.15 part of essence, 3 parts of citric acid and 50 parts of water.

In one embodiment, the alkylphenol ethoxylate is nonylphenol ethoxylate and/or octylphenol ethoxylate.

Alkyl glucoside

Alkyl glucoside (APG) is a new generation of mild green surfactant, which combines many characteristics of nonionic and anionic surfactants, such as high surface activity, strong detergency, good compatibility and the like. Meanwhile, the biodegradable polyester film is easy to biodegrade and can be naturally degraded in the environment, wherein APG C8-10 can be completely degraded after 34 hours. Therefore, it can be used as a substitute for LAS, AES and AEO for formulating cleaning products of good quality.

In one embodiment, the alkyl glucoside is a C6-C12 alkyl glucoside.

In one embodiment, the alkyl glucoside is a C8-C10 alkyl glucoside.

In one embodiment, the brightener is fluorescent brightener CBS-X and/or fluorescent brightener BA.

In one embodiment, the defoamer is a silicone defoamer. The organic silicon defoaming agent can be a commercially available Dow Corning defoaming agent with the model number of AFE1410 or AFE 1427; the model of the defoaming agent is DF-2121 from Defeng defoaming agent Co., Ltd, Dongguan city.

The essence mainly plays a role in enhancing the flavor, and can be any commercially available essence.

In one embodiment, the essence comprises one or more of peppermint essence, jasmine essence, cumquat essence, lemon essence, lavender essence, strawberry essence, juicy peach essence, and cherry essence.

In one embodiment, the train cleaning agent further comprises 2-5 parts by weight of a cleaning aid.

In one embodiment, the cleaning aid is a modified xanthan gum and/or a modified cationized cellulose.

In one embodiment, the cleaning aid consists of 65 to 75 wt% modified xanthan gum and 25 to 35 wt% modified cationized cellulose.

Aiming at the problem that the train dirt is difficult to clean, the inventor of the application discovers, through research, that the cleaning auxiliary can play a good cleaning role, and meanwhile, the corrosivity is reduced, the possible reason is that the cleaning auxiliary can increase the adhesion of a surfactant in a system on the surface of a train, the adsorption of the surfactant on the dirt is improved, the surface tension of water and oily dirt is reduced, the surfactant gradually permeates to the surface of a metal and is immersed into the interface of inner layer metal and the oil dirt, directional adsorption occurs immediately, the dirt starts to shake and loosen, part of the small oil dirt is separated from the surface of the train, the small oil dirt is emulsified and dispersed by a cleaning agent solution and is partially dissolved into micelles, and the oil dirt is rolled off the surface of the train after the micelles are formed; the train surface is usually positively charged and can adsorb silane molecules, a coating on the train surface is easy to generate a coupling effect with the silane molecules, hydrogen bonds can be formed between amino groups and hydroxyl groups, so that a space network structure is formed, the compactness of a silane membrane is improved, meanwhile, the silane has certain hydrophobicity, the corrosivity of a cleaning agent is reduced, and when the cleaning auxiliary agent consists of 65-75 wt% of modified xanthan gum and 25-35 wt% of modified cationized cellulose, the effect is better, the possible reason is that the composite cleaning auxiliary agent can improve the compatibility of various raw materials in a system, avoid the layering phenomenon caused by the action of moisture, and further improve the adhesion of the composite cleaning auxiliary agent to the train surface.

In one embodiment, the modified xanthan gum is prepared from xanthan gum 95-105g, N- (2-aminoethyl) -3-aminopropyltrimethoxysilane 0.3-0.5g, and ethanol 3-4 g. The specific preparation method refers to example 2 in Chinese patent with publication number 104861215A.

In one embodiment, the preparation raw materials of the silane modified cationized cellulose comprise 45-55g of hydroxyethyl cellulose, 23-25g of glycidol trimethyl ammonium chloride and 1-1.5g of 3-aminopropyl triethoxysilane. The specific preparation method refers to example 1 in Chinese patent with publication number 102746406A.

In one embodiment, a preparation method of a train cleaning agent comprises the following steps: adding sodium nitrilotriacetate into water, stirring and mixing uniformly, adding alkylphenol polyoxyethylene, alkyl glucoside, isomeric alcohol polyoxyethylene ether and propylene glycol block polyether, stirring and mixing uniformly, adding triethanolamine, stirring and mixing uniformly, and finally adding the rest raw materials, stirring and mixing uniformly to obtain the finished product.

The train cleaning agent can be directly used and can also be diluted for reuse.

The present invention will now be described in detail by way of examples, and the starting materials used are commercially available unless otherwise specified.

The main raw material sources in the examples are as follows:

the fluorescent brightener CBS-X is supplied by Lvwei Plastic products, Inc. of Dongguan city, under the name of fluorescent brightener CBS-X, and under the chemical name of 4,4' -bis (2-sodium sulfonate styryl) biphenyl.

The propylene glycol block polyether is provided by federal fine chemical industry limited company in Guangdong, and has the following model: l64.

Isomeric alcohol polyoxyethylene ethers are supplied by the Dow chemical company, USA, model number: EH-3

The C8-10 alkyl glucoside is supplied by Suzhou Yuntan chemical Co., Ltd, model number: APG0810

The octyl phenol polyoxyethylene ether is provided by Haian petrochemical plants in Jiangsu province, and has the following model: TX-10.

Sodium nitrilotriacetate is supplied by basf, type: NTA-Trilon A92R, property: the product is white powder, insoluble in organic solvent, soluble in water, and has strong complexing ability. Appearance: white crystalline powder.

The organosilicon antifoaming agent is Dow Corning antifoaming agent, model number AFE 1410.

The jasmine essence is provided by Henan Xinpeng chemical products, Inc., and has the appearance: a liquid.

The xanthan gum is provided by Zhengzhou Wangbu chemical products Co., Ltd, and is in food grade.

Hydroxyethyl cellulose is supplied by ten thousand new materials, inc, in guangzhou city, model number: r-1716.

Examples

Example 1

The train cleaning agent comprises the following raw materials in parts by weight: 3.5 parts of sodium nitrilotriacetate, 5 parts of alkylphenol polyoxyethylene, 15 parts of alkyl glucoside, 10 parts of isomeric alcohol polyoxyethylene ether, 3 parts of triethanolamine, 10 parts of propylene glycol block polyether, 0.2 part of brightener, 0.15 part of defoamer, 0.15 part of essence, 3 parts of citric acid and 50 parts of water.

The alkylphenol polyoxyethylene ether is octyl phenol polyoxyethylene ether.

The alkyl glucoside is C8-C10 alkyl glucoside.

The whitening agent is a fluorescent whitening agent CBS-X.

The defoaming agent is an organic silicon defoaming agent.

The essence is jasmine essence.

The preparation method of the train cleaning agent comprises the following steps: adding sodium nitrilotriacetate into water, stirring and mixing uniformly at the rotating speed of 300r/min, adding alkylphenol ethoxylate, alkyl glucoside, isomeric alcohol polyoxyethylene ether and propylene glycol block polyether, stirring and mixing uniformly at the rotating speed of 300r/min, adding triethanolamine, stirring and mixing uniformly at the rotating speed of 300r/min, and finally adding the rest raw materials, stirring and mixing uniformly at the rotating speed of 300r/min to obtain the finished product.

Example 2

The train cleaning agent comprises the following raw materials in parts by weight: 2 parts of sodium nitrilotriacetate, 4 parts of alkylphenol polyoxyethylene ether, 13 parts of alkyl glucoside, 8 parts of isomeric alcohol polyoxyethylene ether, 2 parts of triethanolamine, 8 parts of propylene glycol block polyether, 0.1 part of whitening agent, 0.1 part of defoaming agent, 0.1 part of essence, 2 parts of citric acid and 45 parts of water.

The alkylphenol polyoxyethylene ether is octyl phenol polyoxyethylene ether.

The alkyl glucoside is C8-C10 alkyl glucoside.

The whitening agent is a fluorescent whitening agent CBS-X.

The defoaming agent is an organic silicon defoaming agent.

The essence is jasmine essence.

Example 3

The train cleaning agent comprises the following raw materials in parts by weight: 5 parts of sodium nitrilotriacetate, 6 parts of alkylphenol polyoxyethylene, 17 parts of alkyl glucoside, 12 parts of isomeric alcohol polyoxyethylene ether, 5 parts of triethanolamine, 12 parts of propylene glycol block polyether, 0.5 part of whitening agent, 0.5 part of defoaming agent, 0.5 part of essence, 5 parts of citric acid and 55 parts of water.

The alkylphenol polyoxyethylene ether is octyl phenol polyoxyethylene ether.

The alkyl glucoside is C8-C10 alkyl glucoside.

The whitening agent is a fluorescent whitening agent CBS-X.

The defoaming agent is an organic silicon defoaming agent.

The essence is jasmine essence.

Example 4

The train cleaning agent comprises the following raw materials in parts by weight: 3.5 parts of sodium nitrilotriacetate, 5 parts of alkylphenol polyoxyethylene, 15 parts of alkyl glucoside, 10 parts of isomeric alcohol polyoxyethylene ether, 3 parts of triethanolamine, 10 parts of propylene glycol block polyether, 0.2 part of brightener, 0.15 part of defoamer, 0.15 part of essence, 3 parts of citric acid, 3 parts of cleaning assistant and 50 parts of water.

The alkylphenol polyoxyethylene ether is octyl phenol polyoxyethylene ether.

The alkyl glucoside is C8-C10 alkyl glucoside.

The whitening agent is a fluorescent whitening agent CBS-X.

The defoaming agent is an organic silicon defoaming agent.

The essence is jasmine essence.

The cleaning auxiliary agent is modified xanthan gum.

The preparation raw materials of the modified xanthan gum comprise 100g of xanthan gum, 0.4g of N- (2-aminoethyl) -3-aminopropyltrimethoxysilane and 3.6g of ethanol. The specific preparation method is shown in example 2 in Chinese patent with publication number 104861215A.

Example 5

The alkylphenol polyoxyethylene ether is octyl phenol polyoxyethylene ether.

The alkyl glucoside is C8-C10 alkyl glucoside.

The whitening agent is a fluorescent whitening agent CBS-X.

The defoaming agent is an organic silicon defoaming agent.

The essence is jasmine essence.

The cleaning auxiliary agent is obtained by mixing modified cationized cellulose.

The preparation raw materials of the silane modified cationized cellulose comprise 50g of hydroxyethyl cellulose, 24g of glycidol trimethyl ammonium chloride and 1.2g of 3-aminopropyl triethoxysilane. The specific preparation method of the silane-modified cationized cellulose is shown in example 1 in Chinese patent publication No. 102746406A.

Example 6

The alkylphenol polyoxyethylene ether is octyl phenol polyoxyethylene ether.

The alkyl glucoside is C8-C10 alkyl glucoside.

The whitening agent is a fluorescent whitening agent CBS-X.

The defoaming agent is an organic silicon defoaming agent.

The essence is jasmine essence.

The cleaning assistant is prepared by mixing 70 wt% of modified xanthan gum and 30 wt% of modified cationized cellulose.

The preparation raw materials of the modified xanthan gum comprise 100g of xanthan gum, 0.4g of N- (2-aminoethyl) -3-aminopropyltrimethoxysilane and 3.6g of ethanol. The specific preparation method of the modified xanthan gum is shown in example 2 in the Chinese patent with the publication number of 104861215A.

Comparative example 1

The train cleaning agent comprises the following raw materials in parts by weight: 3.5 parts of sodium nitrilotriacetate, 5 parts of alkylphenol polyoxyethylene, 15 parts of alkyl glucoside, 20 parts of isomeric alcohol polyoxyethylene ether, 3 parts of triethanolamine, 0.2 part of whitening agent, 0.15 part of defoaming agent, 0.15 part of essence, 3 parts of citric acid and 50 parts of water.

The alkylphenol polyoxyethylene ether is octyl phenol polyoxyethylene ether.

The alkyl glucoside is C8-C10 alkyl glucoside.

The whitening agent is a fluorescent whitening agent CBS-X.

The defoaming agent is an organic silicon defoaming agent.

The essence is jasmine essence.

The preparation method of the train cleaning agent comprises the following steps: adding sodium nitrilotriacetate into water, stirring and mixing uniformly at the rotating speed of 300r/min, adding alkylphenol ethoxylate, alkyl glucoside and isoalcohol ethoxylate, stirring and mixing uniformly at the rotating speed of 300r/min, adding triethanolamine, stirring and mixing uniformly at the rotating speed of 300r/min, and finally adding the rest raw materials, stirring and mixing uniformly at the rotating speed of 300r/min to obtain the finished product.

Comparative example 2

The train cleaning agent comprises the following raw materials in parts by weight: 3.5 parts of sodium nitrilotriacetate, 5 parts of alkylphenol polyoxyethylene, 15 parts of alkyl glucoside, 3 parts of triethanolamine, 20 parts of propylene glycol block polyether, 0.2 part of whitening agent, 0.15 part of defoaming agent, 0.15 part of essence, 3 parts of citric acid and 50 parts of water.

The alkylphenol polyoxyethylene ether is octyl phenol polyoxyethylene ether.

The alkyl glucoside is C8-C10 alkyl glucoside.

The whitening agent is a fluorescent whitening agent CBS-X.

The defoaming agent is an organic silicon defoaming agent.

The essence is jasmine essence.

The preparation method of the train cleaning agent comprises the following steps: adding sodium nitrilotriacetate into water, stirring and mixing uniformly at the rotating speed of 300r/min, adding alkylphenol ethoxylates, alkyl glucoside and propylene glycol block polyether, stirring and mixing uniformly at the rotating speed of 300r/min, adding triethanolamine, stirring and mixing uniformly at the rotating speed of 300r/min, and finally adding the rest raw materials, stirring and mixing uniformly at the rotating speed of 300r/min to obtain the finished product.

Comparative example 3

The alkylphenol polyoxyethylene ether is octyl phenol polyoxyethylene ether.

The alkyl glucoside is C8-C10 alkyl glucoside.

The whitening agent is a fluorescent whitening agent CBS-X.

The defoaming agent is an organic silicon defoaming agent.

The essence is jasmine essence.

The cleaning auxiliary agent is prepared by mixing 70 wt% of xanthan gum and 30 wt% of modified cationized cellulose.

The preparation raw materials of the silane modified cationized cellulose comprise 50g of hydroxyethyl cellulose, 24g of glycidol trimethyl ammonium chloride and 1.2g of 3-aminopropyl triethoxysilane. The specific preparation method of the modified cationized cellulose is shown in example 1 in Chinese patent with publication number 102746406A.

Comparative example 4

The alkylphenol polyoxyethylene ether is octyl phenol polyoxyethylene ether.

The alkyl glucoside is C8-C10 alkyl glucoside.

The whitening agent is a fluorescent whitening agent CBS-X.

The defoaming agent is an organic silicon defoaming agent.

The essence is jasmine essence.

The cleaning assistant is prepared by mixing 70 wt% of modified xanthan gum and 30 wt% of hydroxyethyl cellulose.

Evaluation of Performance

Test example 1

For the examples and comparative examples, train cleaning effect tests were performed. The test results are shown in Table 1.

Table 1: train cleaning test result table

Test example 2

The examples and comparative examples were tested in accordance with QB/T2117-.

The results of the clean and LY12 hard aluminum corrosion tests are shown in table 2. Other performance indexes all meet the requirements of QB/T2117-1995 'general water-based metal cleaning agent'.

Table 2: table of net cleaning force and LY12 hard aluminum corrosion test results

The foregoing examples are merely illustrative and serve to explain some of the features of the method of the present invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.

Claims

1. The train cleaning agent is characterized by comprising the following raw materials: sodium nitrilotriacetate, alkylphenol ethoxylates, alkyl glucoside, isomeric alcohol polyoxyethylene ether, triethanolamine, propylene glycol block polyether, a whitening agent, an antifoaming agent, essence, citric acid and water;

the train cleaning agent also comprises 2-5 parts by weight of cleaning auxiliary agent;

the cleaning auxiliary agent is modified xanthan gum and/or modified cationized cellulose;

the preparation raw materials of the modified xanthan gum comprise 95-105g of xanthan gum, 0.3-0.5g of N- (2-aminoethyl) -3-aminopropyltrimethoxysilane and 3-4g of ethanol;

the raw materials for preparing the modified cationized cellulose comprise 45-55g of hydroxyethyl cellulose, 23-25g of glycidol trimethyl ammonium chloride and 1-1.5g of 3-aminopropyl triethoxysilane.

2. The train cleaning agent as claimed in claim 1, which comprises the following raw materials in parts by weight: 2-5 parts of sodium nitrilotriacetate, 4-6 parts of alkylphenol polyoxyethylene, 13-17 parts of alkyl glucoside, 8-12 parts of isomeric alcohol polyoxyethylene ether, 2-5 parts of triethanolamine, 8-12 parts of propylene glycol block polyether, 0.1-0.5 part of whitening agent, 0.1-0.5 part of defoaming agent, 0.1-0.5 part of essence, 2-5 parts of citric acid and 45-55 parts of water.

3. The train cleaning agent according to claim 1 or 2, wherein the alkylphenol ethoxylate is nonylphenol ethoxylate and/or octylphenol ethoxylate.

4. The train cleaning agent according to claim 1 or 2, wherein the alkyl glucoside is a C6-C12 alkyl glucoside.

5. The train cleaning agent according to claim 4, wherein the alkyl glucoside is C8-C10 alkyl glucoside.

6. Train washes according to claim 1 or 2, characterized in that the brightener is fluorescent brightener CBS-X and/or fluorescent brightener BA.

7. The train cleaning agent according to claim 1 or 2, wherein the defoaming agent is a silicone defoaming agent.

8. The train cleaning agent according to claim 1 or 2, wherein the essence comprises one or more of mint essence, jasmine essence, cumquat essence, lemon essence, lavender essence, strawberry essence, juicy peach essence and cherry essence.