Special cleaning agent for windshield of vehicle body as well as preparation method and application of special cleaning agent

Abstract

The invention discloses a special cleaning agent for a windshield of a vehicle body as well as a preparation method and application of the special cleaning agent. The cleaning agent comprises the following components in parts by weight: 20-25 parts of an emulsifier, 10-15 parts of a builder, 5-8 parts of a penetrant, 5-10 parts of a corrosion inhibitor and 50-65 parts of a solvent, wherein the emulsifying agent is selected from at least one of fatty alcohol polyoxyethylene 10 ether, isomeric alcohol polyoxyethylene ether and methyl stearate sodium sulfonate; the builder is selected from at least one of glycerol, coco fatty acid diethanol amide and sulfo-imidazoline betaine; the penetrant is selected from at least one of tetrasiloxane, isooctanol polyoxyethylene ether phosphate and alkylphenol polyoxyethylene ether; the corrosion inhibitor is selected from at least one of glycerol, sodium polyacrylate, benzotriazole, sodium tripolyphosphate and sodium gluconate. The cleaning agent has the advantages of being good in cleaning force, free of flash points, incombustible, free of corrosion to rubber base materials and the like.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning agents, and in particular to a special cleaning agent for a vehicle windshield, and a preparation method and application thereof. Background Art

[0002] The vehicle body windshield refers to a facility or component that can block the invasion of wind. Its main function is to prevent or weaken the direct effect of wind and protect certain areas from the invasion of wind. According to different materials, the vehicle body windshield is mainly divided into glass windshield, rubber windshield and metal windshield. Among them, the rubber windshield was developed in the 1990s and is usually used in the connection of the vehicle body. It has the advantages of low noise, low cost, and good sealing compared to iron windshield. It is the mainstream form of passenger car windshield. However, the rubber windshield is easily corroded during the cleaning process and is difficult to clean, which greatly affects its application.

[0003] Related research shows that during long-term use, a layer of yellow-black dirt that is difficult to remove is easily formed on the surface of rubber windshields, which is extremely difficult to clean. After a long period of use, the stains will remain, causing the dirt to become more and more serious and gradually penetrate into the surface material of the windshield, forming a large area of ​​dirt that cannot be cleaned, greatly affecting the surface appearance. However, the special cleaners for rubber windshields on the market are generally strong acid cleaners, which have better cleaning power than neutral cleaners, but have the disadvantages of high corrosiveness and easy to accelerate the aging of rubber materials after use.

[0004] Based on this, the present invention intends to propose a special cleaning agent for vehicle windshields which has excellent cleaning effect and low corrosiveness to meet the cleaning needs of windshields made of various materials. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a special cleaning agent for vehicle windshields and a preparation method and application thereof, which not only has an excellent cleaning promoting effect, but also can well protect the windshield from corrosion.

[0006] In a first aspect of the present invention, a cleaning agent for a vehicle windshield is provided, wherein the raw materials for preparation include the following components by weight: Emulsifier 20-25 parts; 10~15 parts of detergent; 5~8 parts of penetrant; Corrosion inhibitor 5~10 parts; 50-65 parts of solvent; Wherein, the emulsifier is selected from at least one of fatty alcohol polyoxyethylene 10 ether, isomeric alcohol polyoxyethylene ether, and sodium stearate methyl sulfonate; The builder is selected from at least one of glycerin, coconut oil diethanolamide, and sulfoimidazoline betaine; The penetrant is selected from at least one of tetrasiloxane, isooctyl alcohol polyoxyethylene ether phosphate, and alkylphenol polyoxyethylene ether; The corrosion inhibitor is selected from at least one of glycerol, sodium polyacrylate, benzotriazole, sodium tripolyphosphate and sodium gluconate.

[0007] The special cleaning agent for the vehicle windshield according to the embodiment of the present invention has at least the following beneficial effects: (1) The present invention has found through compounding of various components that in the detergent formula of the present invention, the detergent aid (such as glycerin, coconut oil diethanolamide, sulfoimidazoline betaine, etc.), penetrant (such as tetrasiloxane and isooctyl polyoxyethylene ether phosphate, etc.), and corrosion inhibitor (such as glycerol and sodium tripolyphosphate, etc.) can increase the adhesion of the emulsifier in the system on the stain surface, improve the encapsulation and adsorption of the emulsifier on the dirt, reduce the surface tension between water and oily dirt, and during the cleaning process, promote the emulsifier to penetrate into the interface between the inner layer of the cleaning object and the oily dirt, resulting in directional adsorption and encapsulation, so that the dirt as a whole becomes loose and disintegrated, thereby causing small oily dirt on the surface of the cleaning object to fall off, and be emulsified, dispersed and dissolved into micelles by the cleaning agent solution in large quantities. After the micelles are formed, the oily dirt is taken away from the surface of the cleaning object.

[0008] (2) The special cleaning agent for vehicle windshields of the present invention has the advantages of good cleaning power, no flash point, non-flammability, and no corrosion to rubber substrates, and can be used for a long time. In some embodiments of the present invention, the emulsifier includes at least one of fatty alcohol polyoxyethylene 10 ether, isomeric alcohol polyoxyethylene ether, and sodium stearate methyl sulfonate.

[0009] Preferably, the emulsifier includes fatty alcohol polyoxyethylene 10 ether and isomeric alcohol polyoxyethylene ether.

[0010] In some embodiments of the present invention, the weight ratio of the fatty alcohol polyoxyethylene 10 ether to the isomeric alcohol polyoxyethylene ether is 0.6-1:1.

[0011] In some embodiments of the present invention, the penetrant comprises tetrasiloxane, and isooctyl alcohol polyoxyethylene ether phosphate and / or alkylphenol polyoxyethylene ether.

[0012] In some embodiments of the present invention, the weight ratio of the tetrasiloxane to the isooctyl polyoxyethylene ether phosphate and / or the alkylphenol polyoxyethylene ether is 1:2-4.

[0013] In some embodiments of the present invention, the corrosion inhibitor includes glycerol and at least one of sodium polyacrylate, benzotriazole, sodium tripolyphosphate, and sodium gluconate.

[0014] Preferably, the corrosion inhibitor includes glycerol and at least two of sodium polyacrylate, benzotriazole, sodium tripolyphosphate and sodium gluconate.

[0015] In some embodiments of the present invention, the solvent is water.

[0016] In some embodiments of the present invention, the raw materials for preparation include the following components by weight: 8-9 parts of fatty alcohol polyoxyethylene 10 ether; 12-15 parts of isomeric alcohol polyoxyethylene ether; Coconut oil diethanolamide 6-7 parts; Sulfolimidazolinium betaine and / or glycerol 7-8 parts; 1.5-2.5 parts of tetrasiloxane; 5-5.5 parts of alkylphenol polyoxyethylene ether and / or isooctyl alcohol polyoxyethylene ether phosphate; 1.5~3 parts of glycerol; 4-5 parts of sodium tripolyphosphate and / or sodium polyacrylate; 50~60 parts of water.

[0017] The second aspect of the present invention is a method for preparing a special cleaning agent for vehicle windshields, which is prepared by mixing the raw materials for preparing the special cleaning agent for vehicle windshields described in any one of the first aspects.

[0018] The preparation method according to the embodiment of the present invention has at least the following beneficial effects: the preparation method of the special cleaning agent for vehicle windshield of the present invention is simple, highly safe, and suitable for industrial production.

[0019] In some embodiments of the present invention, the mixing temperature is 30-40°C.

[0020] The third aspect of the present invention provides the use of the special cleaning agent for vehicle windshield as described in any one of the first aspects in the preparation of oil removal or yellow stain removal products.

[0021] According to the application of the embodiment of the present invention, at least the following beneficial effects are achieved: the special cleaning agent for the windshield of a vehicle body of the present invention not only has an excellent degreasing effect, but also can effectively remove yellow stains on rubber materials.

[0022] Other features and advantages of the present invention will be set forth in the description which follows. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments to clearly and completely describe the concept of the present invention and the technical effects produced, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0024] The words "preferably", "more preferably", etc. in the present invention refer to embodiments of the present invention that may provide certain beneficial effects in certain circumstances. However, other embodiments may also be preferred under the same circumstances or other circumstances. In addition, the description of one or more preferred embodiments does not imply that other embodiments are not applicable, nor is it intended to exclude other embodiments from the scope of the present invention.

[0025] When a numerical range is disclosed herein, the above range is considered to be continuous and includes the minimum and maximum values ​​of the range, as well as every value between such minimum and maximum values. Further, when a range refers to an integer, every integer between the minimum and maximum values ​​of the range is included. In addition, when multiple ranges are provided to describe features or characteristics, the ranges can be combined. In other words, unless otherwise indicated, all ranges disclosed herein should be understood to include any and all subranges included therein.

[0026] In the description of the present invention, the reference term "and / or" includes all and any combinations of one or more of the associated listed items.

[0027] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0028] In the description of the present invention, fatty alcohol polyoxyethylene 10 ether (C12~C18) was purchased from Hai'an Petrochemical Plant in Jiangsu Province; fatty alcohol polyoxyethylene ether disodium sulfosuccinate (C12~18) was purchased from Guangzhou Suixin Chemical Co., Ltd.; isomeric alcohol polyoxyethylene ether (EH-9) was purchased from Dow Chemical in the United States; tetrasiloxane is a gemini silicone purchased from Shanghai Gaoming Chemical Co., Ltd.

[0029] If the specific conditions are not specified in the examples, the experiments were carried out under conventional conditions or conditions recommended by the manufacturer. If the manufacturers of the reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0030] Example 1 The present embodiment provides a special cleaning agent for vehicle windshield and a preparation method thereof. The special cleaning agent for vehicle windshield is prepared from raw materials as shown in Table 1 in parts by weight.

[0031] Table 1: Components of cleaning agent for car windshield

[0032] This embodiment also provides a method for preparing a special cleaning agent for a vehicle windshield, which specifically comprises the following steps: According to the above weight proportions, weigh the prepared raw materials, then heat the deionized water to 30-40° C., then add the emulsifier, builder, penetrant and corrosion inhibitor in sequence, and stir until transparent without precipitation to obtain a special cleaning agent for vehicle windshield.

[0033] Example 2 This embodiment provides a special cleaning agent for vehicle windshields and a preparation method thereof. The difference between this embodiment and embodiment 1 is that the detergent aid sulfoimidazoline betaine is replaced with glycerol. Specifically, the special cleaning agent for vehicle windshields is prepared from raw materials as shown in Table 2 in parts by weight.

[0034] Table 2: Components of cleaning agent for car windshield

[0035] This embodiment also provides a method for preparing a special cleaning agent for a vehicle windshield, which specifically comprises the following steps: According to the above weight proportions, weigh the prepared raw materials, then heat the deionized water to 30-40° C., then add the emulsifier, builder, penetrant and corrosion inhibitor in sequence, and stir until transparent without precipitation to obtain a special cleaning agent for vehicle windshield.

[0036] Example 3 The present embodiment provides a special cleaning agent for vehicle windshields and a preparation method thereof. The difference between this embodiment and embodiment 1 is that the penetrant alkylphenol polyoxyethylene ether is replaced by isooctyl alcohol polyoxyethylene ether phosphate. Specifically, the special cleaning agent for vehicle windshields is prepared from raw materials as shown in Table 3 in parts by weight.

[0037] Table 3: Components of cleaning agent for car windshield

[0038] This embodiment also provides a method for preparing a special cleaning agent for a vehicle windshield, which specifically comprises the following steps: According to the above weight proportions, weigh the prepared raw materials, then heat the deionized water to 30-40° C., then add the emulsifier, builder, penetrant and corrosion inhibitor in sequence, and stir until transparent without precipitation to obtain a special cleaning agent for vehicle windshield.

[0039] Example 4 This embodiment provides a special cleaning agent for vehicle windshields and a preparation method thereof. The special cleaning agent for vehicle windshields is prepared from raw materials as shown in Table 4 in parts by weight.

[0040] Table 4: Components of cleaning agent for car windshield

[0041] This embodiment also provides a method for preparing a special cleaning agent for a vehicle windshield, which specifically comprises the following steps: According to the above weight proportions, weigh the prepared raw materials, then heat the deionized water to 30-40° C., then add the emulsifier, builder, penetrant and corrosion inhibitor in sequence, and stir until transparent without precipitation to obtain a special cleaning agent for vehicle windshield.

[0042] Example 5 This embodiment provides a special cleaning agent for a vehicle windshield and a preparation method thereof. The difference between this embodiment and Embodiment 1 is that the contents of the components are different. Specifically, the special cleaning agent for a vehicle windshield is prepared using raw materials as shown in Table 5 in parts by weight.

[0043] Table 5: Components of cleaning agent for car windshield

[0044] This embodiment also provides a method for preparing a special cleaning agent for a vehicle windshield, which specifically comprises the following steps: According to the above weight proportions, weigh the prepared raw materials, then heat the deionized water to 30-40° C., then add the emulsifier, builder, penetrant and corrosion inhibitor in sequence, and stir until transparent without precipitation to obtain a special cleaning agent for vehicle windshield.

[0045] Comparative Example 1 This comparative example provides a special cleaning agent for vehicle windshields and a preparation method thereof. The special cleaning agent for vehicle windshields is prepared from raw materials as shown in Table 6 in parts by weight.

[0046] Table 6: Components of cleaning agent for car windshield

[0047] This comparative example also provides a method for preparing a special cleaning agent for a vehicle windshield, which specifically comprises the following steps: According to the above weight proportions, weigh the prepared raw materials, then heat the deionized water to 30-40° C., then add the emulsifier, builder, penetrant and corrosion inhibitor in sequence, and stir until transparent without precipitation to obtain a special cleaning agent for vehicle windshield.

[0048] Comparative Example 2 This comparative example provides a special cleaning agent for vehicle windshields and a preparation method thereof. The special cleaning agent for vehicle windshields is prepared using raw materials as shown in Table 7 in parts by weight.

[0049] Table 7: Components of cleaning agent for car windshield

[0050] This comparative example also provides a method for preparing a special cleaning agent for a vehicle windshield, which specifically comprises the following steps: According to the above weight proportions, weigh the prepared raw materials, then heat the deionized water to 30-40° C., then add the emulsifier, builder, penetrant and corrosion inhibitor in sequence, and stir until transparent without precipitation to obtain a special cleaning agent for vehicle windshield.

[0051] Comparative Example 3 This comparative example provides a special cleaning agent for vehicle windshields and a preparation method thereof. The special cleaning agent for vehicle windshields is prepared using raw materials as shown in Table 8 in parts by weight.

[0052] Table 8: Components of cleaning agent for vehicle windshield

[0053] This comparative example also provides a method for preparing a special cleaning agent for a vehicle windshield, which specifically comprises the following steps: According to the above weight proportions, weigh the prepared raw materials, then heat the deionized water to 30-40° C., then add the emulsifier, builder, penetrant and corrosion inhibitor in sequence, and stir until transparent without precipitation to obtain a special cleaning agent for vehicle windshield.

[0054] Comparative Example 4 This comparative example provides a special cleaning agent for vehicle windshields and a preparation method thereof. The special cleaning agent for vehicle windshields is prepared using raw materials as shown in Table 9 in parts by weight.

[0055] Table 9: Components of cleaning agent for car windshield

[0056] This comparative example also provides a method for preparing a special cleaning agent for a vehicle windshield, which specifically comprises the following steps: According to the above weight proportions, weigh the prepared raw materials, then heat the deionized water to 30-40° C., then add the emulsifier, builder, penetrant and corrosion inhibitor in sequence, and stir until transparent without precipitation to obtain a special cleaning agent for vehicle windshield.

[0057] Comparative Example 5 This comparative example provides a special cleaning agent for vehicle windshields and a preparation method thereof. The special cleaning agent for vehicle windshields is prepared using raw materials as shown in Table 10, measured in parts by weight.

[0058] Table 10: Components of cleaning agent for car windshield

[0059] This comparative example also provides a method for preparing a special cleaning agent for a vehicle windshield, which specifically comprises the following steps: According to the above weight proportions, weigh the prepared raw materials, then heat the deionized water to 30-40° C., then add the emulsifier, builder, penetrant and corrosion inhibitor in sequence, and stir until transparent without precipitation to obtain a special cleaning agent for vehicle windshield.

[0060] Comparative Example 6 This comparative example provides a special cleaning agent for vehicle windshields and a preparation method thereof. The special cleaning agent for vehicle windshields is prepared using raw materials as shown in Table 11 in parts by weight.

[0061] Table 11: Components of cleaning agent for car windshield

[0062] This comparative example also provides a method for preparing a special cleaning agent for a vehicle windshield, which specifically comprises the following steps: According to the above weight proportions, weigh the prepared raw materials, then heat the deionized water to 30-40° C., then add the emulsifier, builder, penetrant and corrosion inhibitor in sequence, and stir until transparent without precipitation to obtain a special cleaning agent for vehicle windshield.

[0063] Comparative Example 7 This comparative example provides a commercially available special cleaning agent for rubber. Specifically, the cleaning agent is Tektronix 704A rubber cleaning agent, which is purchased from Tektronix International (Shanghai) Technology Rubber Co., Ltd.

[0064] Test example 1: Physical and chemical properties and cleaning power test This test example tests the physical and chemical properties and cleaning strength related performance of the cleaning agents of the above-mentioned Examples 1 to 5 and Comparative Examples 1 to 7. The specific test method is as follows: (1) pH value detection: according to GBT 6368 pH value detection method.

[0065] (2) Flash point (open cup) test: GB / T 261-2021 Determination of flash point - Pensky-Martin closed cup method.

[0066] (3) Standard oil plate cleaning power test: carried out in accordance with GB / T 35759-2017 Metal Cleaning Agent Cleaning Power Value Test Method.

[0067] (4) Yellow dirt plate cleaning power test: refer to GB / T 35759-2017 Metal Cleaner Cleaning Power Value Test Method. In addition, during the test process, adjustments are made to artificial oil stains based on actual usage differences. The main changes are as follows: the yellow part is adjusted according to the following proportions: 8% barium petroleum sulfonate, 3.5% lanolin magnesium soap, lanolin adjusted from 2% to 8%, industrial vaseline 30%, No. 20 machine oil adjusted from 34.5% to 24.5%, No. 30 machine oil adjusted from 12% to 10%, calcium-based grease adjusted from 2% to 8%, and aluminum oxide 8%.

[0068] The test results are shown in Table 13.

[0069] Table 13: Physical and chemical properties and cleaning strength test results

[0070] According to the above test results, the pH range of the special cleaning agent for car windshields of the present invention is between 7 and 8, which is neutral or weakly alkaline; the open flash point test results show that it is not flammable during normal use or storage, indicating that it has good safety. Furthermore, the cleaning power test results show that it has excellent cleaning effects on both standard oily plates and yellow dirt plates, and the cleaning power of the cleaning agent in Example 1 for yellow dirt plates even reaches 99%, which can effectively remove common yellow dirt.

[0071] Compared with Example 1, Comparative Example 1 increases the addition ratio of fatty alcohol polyoxyethylene 10 ether in the emulsifier and the content of corrosion inhibitor, and reduces the content of builder and penetrant. The results show that the cleaning power for the standard oily plate and the yellow dirt plate is reduced, and the cleaning power for the yellow dirt plate is even reduced to below the standard, which is presumably related to the decrease in the content of builder and penetrant. In the detergent system of Comparative Example 1, the builder sulfonimidazoline betaine and coconut oil diethanolamide have a certain synergistic effect. Coconut oil diethanolamide can improve the stability of the foam, while sulfonimidazoline betaine can enhance its surface activity. The combination of the two can make the foam in the cleaning process richer and more durable, and reducing the content of sulfonimidazoline betaine can easily lead to a decrease in its synergistic effect, thereby affecting the decontamination effect. Tetrasiloxane is mainly added as a lubricating and hydrophobic component, which can reduce friction during the cleaning process, reduce the adhesion of dirt, and thus help remove stubborn dirt; while alkylphenol polyoxyethylene ether can penetrate the surface of dirt and improve the penetration ability of the detergent. The combination of the two can greatly enhance the deep cleaning ability, and reducing the two components will lead to a worse cleaning effect.

[0072] Compared with Example 1, the detergent content of Comparative Example 2 is reduced, and the yellow dirt plate cleaning power is significantly reduced, indicating that coconut oil diethanolamide and sulfoimidazoline betaine help improve the yellow dirt removal ability of the detergent. The cleaning effect of the detergent of Comparative Example 3 is slightly reduced compared with Example 1, but is generally maintained at a comparable level with Example 1.

[0073] Compared with Example 1, the emulsifier content in Comparative Example 4 was significantly reduced, while the penetrant content was significantly increased. The emulsifier content in Comparative Example 5 was significantly increased, while the penetrant content was reduced. The results showed that both were not conducive to improving the cleaning power. It is speculated that when the emulsifier is reduced, the stains are difficult to be quickly emulsified, wrapped and disintegrated, and when the penetrant content is reduced, it will make it difficult for the emulsified components in the detergent to penetrate into the interface between the inner layer of the cleaning object and the oil stain, thereby affecting the cleaning effect. More emulsifiers were added in Comparative Example 6, and the results showed that it was not conducive to improving the cleaning power. It is speculated that too much emulsifier leads to too much foam, which prevents the cleaning components from effectively contacting the dirt surface, thereby reducing the cleaning effect.

[0074] Test example 2: Corrosion test This test example tests the effects of the cleaning agents of Examples 1 to 5 and Comparative Examples 1 to 7 on the substrate, specifically including the effects of long-term use of the cleaning agents on the hardness, tensile strength, and mass change of chloroprene rubber, as well as the corrosion to other substrates (such as 45# steel, brass, and duralumin). The specific test method is as follows: (1) Detection of hardness change of chloroprene rubber: refer to GB / T 1690-2010 Test method for liquid resistance of vulcanized rubber or thermoplastic rubber.

[0075] (2) Tensile strength change rate test: refer to GB / T 1690-2010 Test method for liquid resistance of vulcanized rubber or thermoplastic rubber.

[0076] (3) Quality change detection: refer to GB / T 1690-2010 Test method for liquid resistance of vulcanized rubber or thermoplastic rubber.

[0077] (4) Corrosion test: refer to GB / T 35759-2017 Metal Cleaning Agent Corrosion Test Method.

[0078] The test results are shown in Table 14.

[0079] Table 14: Test results of the impact on the substrate

[0080] From the above test results, it can be seen that the special cleaning agent for vehicle windshield of the present invention has good anti-corrosion effect, which is generally within the standard range. However, when the content of each component is too high or too low, it will affect the substrate to a certain extent. In summary, the present invention provides a special cleaning agent for car windshields and its preparation method and application. The present invention finds through compounding of various components that in the cleaning agent formula of the present invention, the builder, penetrant (such as tetrasiloxane and isooctyl polyoxyethylene ether phosphate, etc.), and corrosion inhibitor (such as glycerol and sodium tripolyphosphate, etc.) can increase the adhesion of the emulsifier in the system on the stain surface, improve the wrapping and adsorption of the emulsifier on the dirt, and reduce the surface tension of water and oily dirt. In the cleaning process, the emulsifier can be promoted to penetrate into the interface between the inner layer of the cleaning object and the oily dirt, and directional adsorption and wrapping occur, so that the dirt as a whole is loosened and disintegrated, and then the small oily dirt on the surface of the cleaning object falls off, and is emulsified, dispersed and dissolved into micelles by the cleaning agent solution in large quantities. After the micelles are formed, the oily dirt is taken away from the surface of the cleaning object. The special cleaning agent for car windshields of the present invention has the advantages of good cleaning power, no flash point, non-flammability, and no corrosion to the rubber substrate, and can be used for a long time.

[0081] The above is a detailed description of the embodiments of the present invention, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A special cleaning agent for vehicle windshield, characterized in that: The raw materials include the following components by weight: Emulsifier 20-25 parts; 10~15 parts of detergent; 5~8 parts of penetrant; Corrosion inhibitor 5~10 parts; 50-65 parts of solvent; Wherein, the emulsifier is selected from at least one of fatty alcohol polyoxyethylene 10 ether, isomeric alcohol polyoxyethylene ether, and sodium stearate methyl sulfonate; The builder is selected from at least one of glycerin, coconut oil diethanolamide, and sulfoimidazoline betaine; The penetrant is selected from at least one of tetrasiloxane, isooctyl alcohol polyoxyethylene ether phosphate, and alkylphenol polyoxyethylene ether; The corrosion inhibitor is selected from at least one of glycerol, sodium polyacrylate, benzotriazole, sodium tripolyphosphate and sodium gluconate.

2. The special cleaning agent for vehicle windshield according to claim 1, characterized in that: The emulsifier includes at least one of fatty alcohol polyoxyethylene 10 ether, isomeric alcohol polyoxyethylene ether, and sodium stearate methyl sulfonate; Preferably, the emulsifier is fatty alcohol polyoxyethylene 10 ether and isomeric alcohol polyoxyethylene ether.

3. The special cleaning agent for vehicle windshield according to claim 2, characterized in that: The weight ratio of the fatty alcohol polyoxyethylene 10 ether to the isomeric alcohol polyoxyethylene ether is 0.6-1:

1.

4. The special cleaning agent for vehicle windshield according to claim 1, characterized in that: The penetrant comprises tetrasiloxane, isooctyl alcohol polyoxyethylene ether phosphate and / or alkylphenol polyoxyethylene ether; Preferably, the weight ratio of the tetrasiloxane to isooctyl polyoxyethylene ether phosphate and / or alkylphenol polyoxyethylene ether is 1:2-4.

5. The special cleaning agent for vehicle windshield according to claim 1, characterized in that: The corrosion inhibitor includes glycerol and at least one of sodium polyacrylate, benzotriazole, sodium tripolyphosphate and sodium gluconate.

6. The special cleaning agent for vehicle windshield according to any one of claims 1 to 5, characterized in that: The solvent is water.

7. The special cleaning agent for vehicle windshield according to claim 6, characterized in that: According to weight fraction, the preparation raw material includes the following components: 8-9 parts of fatty alcohol polyoxyethylene 10 ether; 12-15 parts of isomeric alcohol polyoxyethylene ether; Coconut oil diethanolamide 6-7 parts; Sulfolimidazolinium betaine and / or glycerol 7-8 parts; 1.5-2.5 parts of tetrasiloxane; 5-5.5 parts of alkylphenol polyoxyethylene ether and / or isooctyl alcohol polyoxyethylene ether phosphate; 1.5~3 parts of glycerol; 4-5 parts of sodium tripolyphosphate and / or sodium polyacrylate; 50~60 parts of water.

8. A method for preparing a special cleaning agent for a vehicle windshield, characterized in that: The cleaning agent is prepared by mixing the raw materials for preparing the cleaning agent for vehicle windshield according to any one of claims 1 to 7.

9. The preparation method according to claim 8, characterized in that: The mixing temperature is 30-40°C.

10. Use of the special cleaning agent for vehicle windshields according to any one of claims 1 to 7 in the preparation of oil removal or yellow stain removal products.

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