A detergent composition, its preparation and use

Abstract

The application discloses a cleaning agent composition and a preparation method and application thereof. The cleaning agent composition comprises the following components in parts by weight: nonylphenol polyoxyethylene ether phosphate 8-20 parts; octylphenol polyoxyethylene ether 3-8 parts; amino acid derivative chelating agent 1-3 parts; pH buffer in proper amount; urea 1-3 parts; propylene glycol 20-30 parts; and water 50-60 parts. The pH of the cleaning agent composition is 5.7-6.5. In the cleaning agent composition, nonylphenol polyoxyethylene phosphate and octylphenol polyoxyethylene ether are compounded, an amino acid derivative chelating agent is used in a slightly acidic environment, and the cleaning agent is prepared by simultaneously interacting with urea and propylene glycol. The prepared cleaning agent has good decontamination performance, has less negative influence on glass and metal, and has good low-temperature solubility and decontamination capacity.

Description

Technical Field

[0001] This invention belongs to the field of environmentally friendly cleaning agent technology, and more specifically, relates to a cleaning agent composition, its preparation method and application. Background Technology

[0002] With urbanization, glass, metal and stone curtain walls have become the mainstream facades of high-rise buildings. However, dust, grease, glue stains, bird droppings, rainwater stains and other complex deposits are common on building curtain walls.

[0003] Traditional strong acid and alkali cleaners, while possessing strong cleaning power, can easily lead to problems such as corrosion of metal frames, damage to glass coatings, and swelling of plastic components. Traditional weak alkaline cleaners have low saponification efficiency for grease-based stains and can easily corrode the silica network on the glass surface, affecting the long-term safety of high-end coated glass. Furthermore, traditional water-based cleaners are prone to layering, crystallization, or a sharp increase in viscosity at low temperatures, resulting in uneven spraying and limiting their application in winter or northern regions. Therefore, there is a need for a building curtain wall cleaner with good cleaning power while minimizing negative impacts on glass and metal. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing cleaning agents that cannot simultaneously achieve high cleaning power and have minimal negative impact on glass and metal, and to provide a cleaning agent composition.

[0005] Another object of the present invention is to provide a method for preparing the cleaning agent composition.

[0006] Another object of the present invention is to provide the application of the cleaning composition.

[0007] To achieve the above objectives, the present invention employs the following technical solution: A cleaning agent composition comprising the following components in parts by weight: 8-20 parts of nonylphenol polyoxyethylene ether phosphate; 3-8 parts of octylphenol polyoxyethylene ether; 1-3 parts of amino acid derivative chelating agent; An appropriate amount of pH buffer; 1-3 parts urea; 20-30 parts of propylene glycol; 50-60 parts water; The pH of the cleaning agent composition is 5.7 to 6.5.

[0008] This invention provides a cleaning agent composition that, by combining nonylphenol polyoxyethylene ether phosphate and octylphenol polyoxyethylene ether, achieves instantaneous spreading and rapid penetration with low foaming. Urea and propylene glycol form a low eutectic system, giving the cleaning agent low-temperature fluidity. Furthermore, urea effectively breaks down the binding force within stains in a slightly acidic environment. Amino acid derivative chelating agents and pH buffers create a "chelation relay" effect, reducing their corrosive properties to glass and metal. The synergistic effect of these components results in a cleaning agent composition that exhibits good stain removal performance when used for cleaning building curtain walls, while minimizing corrosion to metals and glass, and demonstrating good low-temperature solubility. Moreover, the low-foaming nature of the cleaning agent composition prevents obstruction of the drone's visual sensors, ensuring accurate positioning and operation.

[0009] The pH of the cleaning agent composition described in this invention is 5.7 to 6.5, for example, but not limited to, 5.7, 5.8, 5.9, 6, 6.1, 6.2, 6.3, 6.4 or 6.5, etc., all of which can achieve the present invention.

[0010] Preferably, the pH of the cleaning agent composition is 5.8 to 6.3.

[0011] It should be noted that the pH of the cleaning agent composition described in this invention is measured by the following method: the pH of the cleaning agent composition is measured using a pH meter at room temperature.

[0012] It should be noted that the nonylphenol polyoxyethylene ether phosphate ester mentioned in this invention is 8 to 20 parts, for example, but not limited to 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts or 20 parts, and the specific point values ​​between the above point values.

[0013] Preferably, the number of polyoxyethylene ethers in the nonylphenol polyoxyethylene ether phosphate is 8 to 15, that is, n in the nonylphenol polyoxyethylene ether (n) phosphate is 8 to 15, for example, but not limited to, 8, 9, 10, 11, 12, 13, 14 or 15, etc.

[0014] Preferably, n in nonylphenol polyoxyethylene ether (n) phosphate is 9 to 12.

[0015] The octylphenol polyoxyethylene ether described in this invention is 3 to 8 parts, for example, but not limited to 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts or 8 parts, and specific values ​​between the above-mentioned values.

[0016] Preferably, the number of polyoxyethylene ethers in the octylphenol polyoxyethylene ether is 8 to 15, that is, n in octylphenol polyoxyethylene ether (n) is 8 to 15, for example, but not limited to, 8, 9, 10, 11, 12, 13, 14 or 15, etc.

[0017] Preferably, n in octylphenol polyoxyethylene ether (n) is 11 to 13.

[0018] Preferably, the mass ratio of nonylphenol polyoxyethylene ether phosphate to octylphenol polyoxyethylene ether is (2.5~3.5):1.

[0019] The amino acid derivative chelating agent described in this invention is 1 to 3 parts, for example, but not limited to 1 part, 1.2 parts, 1.5 parts, 1.8 parts, 2 parts, 2.2 parts, 2.5 parts, 2.8 parts or 3 parts, and specific values ​​between the above-mentioned values.

[0020] Preferably, the amino acid derivative chelating agent includes one or more of ethylenediamine disuccinate, glutamic acid diacetate, or methylglycine diacetate. These chelating agents exhibit high chelation constants within a pH range of 5.8 to 6.5, effectively complexing calcium and magnesium ions in water and iron and aluminum ions in stains, thus preventing water stain residue.

[0021] Specifically, the ethylenediamine disuccinate can be trisodium ethylenediamine disuccinate.

[0022] Specifically, the glutamate diacetate can be tetrasodium glutamate diacetate.

[0023] Specifically, the methylglycine diacetate can be trisodium methylglycine diacetate.

[0024] More preferably, the amino acid derivative chelating agent is trisodium ethylenediamine disuccinate.

[0025] Preferably, the pH buffer comprises a compound of hydrochloric acid, acetic acid and sodium acetate, or a compound of citric acid and sodium citrate.

[0026] Preferably, the pH buffer is a mixture of citric acid and sodium citrate.

[0027] Specifically, the pH buffer is a compound of citric acid and sodium citrate in a mass ratio of (0.1~5):1.

[0028] It should be noted that the urea mentioned in this invention is 1 to 3 parts, for example, but not limited to 1 part, 1.2 parts, 1.5 parts, 1.8 parts, 2 parts, 2.2 parts, 2.5 parts, 2.8 parts or 3 parts, as well as the specific point values ​​between the above point values.

[0029] The propylene glycol mentioned in this invention is 20 to 30 parts, for example, but not limited to 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts or 30 parts, and specific values ​​between the above points.

[0030] Preferably, the mass ratio of urea to propylene glycol is 1:(10~15).

[0031] Preferably, the critical micelle concentration of the cleaning agent composition of the present invention is ≤0.95 mmol / L. Within this range, the cleaning agent composition exhibits better surface activity at lower concentrations, making it easier to adsorb at the interface and exert a cleaning effect; at the same time, lower concentrations can prevent the drone's sensors from being blocked by foam, allowing for more effective cleaning.

[0032] Specifically, the critical micelle concentration of the cleaning agent composition was determined using the surface tension method.

[0033] Specifically, the critical micelle concentration is determined using a fully automated surface tension meter at 25°C by measuring the surface tension of aqueous solutions of detergent compositions at different concentrations. The surface tension is plotted against concentration (logarithmic scale), and the concentration corresponding to the inflection point of the curve is the critical micelle concentration of the detergent composition.

[0034] Preferably, the cleaning agent composition comprises the following components in parts by weight: 10-16 parts of nonylphenol polyoxyethylene ether phosphate; 3-6 parts of octylphenol polyoxyethylene ether; 1-3 parts of amino acid derivative chelating agent; An appropriate amount of pH buffer; 1-3 parts urea; 22-28 parts of propylene glycol; 50-60 parts water.

[0035] This invention also protects a method for preparing the above-mentioned cleaning agent composition, comprising the following steps: S1. Heat water and add urea, propylene glycol and amino acid derivative chelating agent, stir until completely dissolved to obtain mixture A; S2. Under heating conditions, add octylphenol polyoxyethylene ether to mixture A and stir until it is evenly mixed. Then add nonylphenol polyoxyethylene ether phosphate and continue stirring until it is clear and transparent to obtain mixture B. S3. Cool the mixture B described in step S2 to room temperature, add a pH buffer, stir until the pH value of the system is stable, and then allow it to stand for aging and filter to obtain the cleaning agent composition.

[0036] Preferably, the heating temperature in step S1 is 35~45℃.

[0037] Preferably, the stirring time in step S1 is 25 to 35 minutes.

[0038] Preferably, the heating temperature in step S2 is 35~45℃.

[0039] Preferably, the stirring speed in step S2 is 300~500 rpm.

[0040] Preferably, the continuous stirring time in step S2 is 30 to 45 minutes.

[0041] Preferably, the stirring speed in step S3 is 200~300 rpm.

[0042] Preferably, the stirring time in step S3 is 20 to 30 minutes.

[0043] Preferably, the settling time in step S3 is 20 to 28 hours.

[0044] This invention also protects the use of the above-mentioned cleaning agent composition as a cleaning agent for building curtain walls, especially exterior facades containing materials such as glass and metal.

[0045] The present invention also protects the use of the above-described cleaning agent composition as a building facade cleaner in conjunction with drones.

[0046] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a cleaning agent composition that, by using nonylphenol polyoxyethylene ether phosphate and octylphenol polyoxyethylene ether in combination, along with the combined action of urea and propylene glycol, exhibits good oil removal rates at both room temperature and low temperature, both not less than 90%, under slightly acidic conditions. It also has minimal negative impact on glass and metal, and a low critical micelle concentration, making it particularly suitable for drone cleaning of building curtain walls. Attached Figure Description

[0047] Figure 1 This is a schematic diagram illustrating the synergistic effect of the cleaning agent composition system prepared in Example 1; Detailed Implementation The present invention will be further described in detail below with reference to specific embodiments. These embodiments are only used to explain the present invention and are not intended to limit the scope of the present invention. Unless otherwise specified, the experimental methods used in the following embodiments are conventional methods; the materials and reagents used are commercially available unless otherwise specified.

[0048] 1. Experimental materials Nonylphenol polyoxyethylene ether phosphate: Nonylphenol polyoxyethylene ether phosphate 1: Nonylphenol polyoxyethylene ether (10) phosphate, TXP-10, purchased from Guangdong Yuanfeng Chemical Reagent Co., Ltd.; Nonylphenol polyoxyethylene ether phosphate 2: Nonylphenol polyoxyethylene ether (10) phosphate, TXP-10, purchased from Jiangsu Haian Petrochemical Plant; Octylphenol polyoxyethylene ether phosphate: Octylphenol polyoxyethylene ether (10) phosphate, OP-10P, purchased from Haian Petrochemical Plant, Jiangsu Province; Octylphenol polyoxyethylene ether: Octylphenol polyoxyethylene ether 1: Octylphenol polyoxyethylene (13) ether, OP-13, purchased from Jiangsu Haian Petrochemical Plant; Octylphenol polyoxyethylene ether 2: Octylphenol polyoxyethylene (11) ether, OP-11, purchased from Jiangsu Haian Petrochemical Plant; Nonylphenol polyoxyethylene ether: NP-12, purchased from Guangdong Yuanfeng Chemical Reagent Co., Ltd.; Other nonionic surfactants: lauryl alcohol polyoxyethylene (9) ether, AEO-9, purchased from Jiangsu Haian Petrochemical Plant; Amino acid derivative chelating agents: Amino acid derivative chelating agent 1: trisodium ethylenediamine disuccinate, purchased from Guangdong Yuanfeng Chemical Reagent Co., Ltd.; Amino acid derivative chelating agent 2: Tetrasodium diacetate of glutamate, purchased from Guangdong Shin-Etsu Biotechnology Co., Ltd.; Other chelating agents: Disodium EDTA, purchased from Sinopharm Chemical Reagent Co., Ltd.; pH buffer: pH buffer 1: a compound of citric acid and sodium citrate in a mass ratio of 0.67:1; pH buffer 2: a compound of acetic acid and sodium acetate in a mass ratio of 1:1; pH buffer 3: 1 mol / L hydrochloric acid solution; pH buffer 4: a compound of citric acid and sodium citrate in a mass ratio of 0.18:1; pH buffer 5: a compound of citric acid and sodium citrate in a mass ratio of 4:1; Both urea and propylene glycol are commercially available. It should be noted that the raw materials used in all embodiments and comparative parallel experiments of this invention are from the same source.

[0049] 2. The cleaning agent compositions in Examples 1-12 and Comparative Examples 1-5 and 8 were prepared according to the formulations in Tables 1-2 by the following preparation method: S1. Add measured water to the reaction vessel, heat to 40°C, add urea, propylene glycol and amino acid derivative chelating agent, stir for 30 minutes until completely dissolved to obtain mixture A; S2. Add alkylphenol polyoxyethylene ether to mixture A in step S1 at 40°C, mix evenly, then add alkylphenol polyoxyethylene ether phosphate, and stir continuously at 400 rpm for 40 minutes until clear and transparent to obtain mixture B. S3. Cool the mixture B described in step S2 to 25°C, add a pH buffer, stir at 250 rpm for 25 minutes until the pH value of the system is stable, then let it stand at room temperature for 24 hours, and filter it through a filter bag with a pore size of 5 μm to obtain the cleaning agent composition.

[0050] Comparative Example 6 provides a conventional solvent-based curtain wall cleaner, comprising 8 parts by weight of sodium dodecylbenzenesulfonate (purchased from Sinopharm Chemical Reagent Co., Ltd.), 7 parts by weight of AEO-9, 2 parts by weight of sodium carbonate, 1 part by weight of disodium ethylenediaminetetraacetate (purchased from Sinopharm Chemical Reagent Co., Ltd.), 20 parts by weight of propylene glycol, and 62 parts by weight of water, prepared by the following steps: Water was added to the reactor and heated to 40°C. Then, while stirring, sodium carbonate, disodium ethylenediaminetetraacetate, AEO-9 and propylene glycol were added in sequence, and the mixture was stirred for 40 minutes until it was fully mixed to obtain a conventional solvent-based curtain wall cleaner.

[0051] Comparative Example 7 provides a bio-enzyme-based curtain wall cleaner, comprising 5 parts by weight of alkaline protease (enzyme activity 200,000 U / g, purchased from Novozymes), 5 parts by weight of fatty alcohol polyoxyethylene ether (lauryl alcohol polyoxyethylene ether, JFC-E, purchased from Jiangsu Haian Petrochemical Plant), 3 parts by weight of sodium silicate (purchased from Sinopharm Chemical Reagent Co., Ltd.), 2 parts by weight of nano-SiO2 carrier (particle size 20nm, purchased from Zhongbei Nanopowder Technology Co., Ltd.), and 85 parts by weight of water, prepared using the following steps: While water is being stirred, alkaline protease, JFC-E, sodium silicate, and nano-SiO2 carrier are added sequentially, and the mixture is stirred at room temperature for 60 minutes until fully mixed to obtain a bio-enzyme-based curtain wall cleaner.

[0052] 3. Performance Testing (1) Determination of oil stain removal rate: Liquid paraffin: lanolin: carbon black: silica powder = 4:2:1:3 by mass ratio were mixed evenly to simulate the grease-dust complex on the curtain wall surface. A clean glass test piece (100mm×100mm) was weighed as M0. The oil stain was evenly coated on the clean glass test piece with a coating amount of 0.5±0.05 g / dm². The test piece was immersed in a 5wt% (5g of cleaning agent composition added to 95g of water) cleaning agent composition solution and shaken at 25℃ and 5℃ (each group of samples was measured at 25℃ and 5℃ respectively) with a horizontal shaker at a frequency of 100 times / minute for 10 minutes. After removal, it was rinsed with deionized water and dried. The remaining mass M2 was weighed. The stain removal rate η = [(M1-M2) / (M1-M0]×100%. Each sample was tested in parallel three times and the average value was taken.

[0053] (2) Determination of the effect on Low-E glass: The cleaning agent compositions prepared in each example and comparative example were uniformly coated on the glass surface (size 50mm×50mm, Jiangsu Hongchuang Glass), kept in a constant temperature oven at 40℃ for 24 hours, and then thoroughly rinsed with water and dried at room temperature; the gloss was measured at a 60° angle using a gloss meter under a standard D65 light source and recorded as gloss; the gloss of the untreated glass was recorded as the initial gloss, and the surface gloss change rate (%) was calculated as (initial gloss - gloss) / (gloss). The surface gloss change rate is calculated as (gloss level) / gloss level × 100%; and observed with the naked eye at a distance of 30cm. Among them, if the surface gloss change rate is <5% and there is no abnormality observed with the naked eye, it is recorded as "no change"; if the surface shows a identifiable local hazy feeling, the surface gloss change rate is between 5% and 15%, and the hazy area accounts for <20%, it is recorded as "slight haze"; if the surface shows a large area of ​​white haze-like traces (haze area accounts for ≥20%), and the surface gloss change rate is >15%, it is recorded as "obvious haze".

[0054] (3) Determination of the effect on metals: Accelerated testing was conducted using the immersion method according to GB / T 10125-2021 "Artificial Atmosphere Corrosion Test - Salt Spray Test". A standard 304 stainless steel specimen (50mm×25mm×2mm) was polished to a bright finish, degreased with acetone, dried, and weighed (W1). It was then completely immersed in the cleaning agent compositions prepared in each example and comparative example, and placed in a 40℃ constant temperature oven for 72 hours. After removal, corrosion products were removed according to GB / T 16545-2015 "Corrosion of Metals and Alloys - Removal of Corrosion Products from Corrosion Specimens", dried, and weighed (W2). The corrosion rate was calculated as corrosion rate = (W1-W2)×K / (A×t×ρ), where W1 is the mass of the stainless steel specimen before immersion (g), W2 is the mass of the stainless steel specimen after immersion (g), and K is a constant taken as 8.76×10⁻⁶. 4 A is the total specific surface area (dm²) of the stainless steel specimen. 2), t is the soaking time (h), and ρ is the density of the stainless steel sample, taken as 7.93 g / cm³. 3 At the same time, visually inspect the surface for pitting and discoloration. Judgment criteria: A corrosion rate of less than 0.01 mm / year and no visible corrosion spots on the surface are recorded as "no corrosion".

[0055] (4) Low-temperature solubility determination: Weigh a certain mass (m1, about 10g) of the cleaning agent composition prepared in each example and comparative example, place it in a stoppered glass bottle, add cold water at 5°C, and stir while adding until the solution becomes permanently turbid or precipitated. Record the total mass of water added at this time (m2). The solubility at 5°C S (g / 100g) = [m1 / (m1+m2)]×100. At the same time, record whether the sample separates into layers or crystallizes after standing at 5°C for 24 hours.

[0056] (5) Foam volume determination: Referring to GB / T 7462-1994 "Determination of foaming power of surfactants", the detergent compositions prepared in each example and comparative example were prepared into a 2.5 g / L aqueous solution of detergent composition (2.5 g of detergent composition was dissolved in water and the volume was adjusted to 1 L). The solution was equilibrated in a constant temperature water bath at 50 °C for 30 min. 200 mL of the test solution was poured down from a height of 450 mm to impact 50 mL of the same test solution below. The immediate foam height (initial) and the foam height after standing for 5 minutes were measured.

[0057] Examples 1-12 and Comparative Examples 1-8 Table 1. Dosage (parts by weight) and performance of each component in the cleaning agent compositions of Examples 1-12

[0058] Table 2. Dosage (parts by weight) and performance of each component in the cleaning agent compositions of Comparative Examples 1-8

[0059] As can be seen from Table 1, the cleaning agent compositions prepared in the various embodiments of the present invention have good oil removal ability, while having low corrosiveness to glass and metal. They still have a good oil removal rate at low temperatures, with both the oil removal rate at room temperature and the oil removal rate at low temperature not less than 90%. Moreover, the critical micelle concentration is low, not higher than 0.95 mmol / L, and they have good surface activity at low concentrations.

[0060] As can be seen from Comparative Example 1, if other chelating agents are used instead of the amino acid derivative chelating agents in this invention, the cleaning ability of the resulting cleaning agent composition decreases, and slight fogging occurs on the Low-E glass surface.

[0061] As can be seen from Comparative Example 2, if other alkylphenol polyoxyethylene ethers are used instead of the octylphenol polyoxyethylene ether of the present invention, the foam of the prepared cleaning composition increases significantly and the oil removal rate decreases significantly.

[0062] As can be seen from Comparative Example 3, if other alkylphenol polyoxyethylene ether phosphates are used instead of the nonylphenol polyoxyethylene ether phosphate of the present invention, the foam of the prepared cleaning composition increases significantly and the oil removal rate decreases significantly.

[0063] As can be seen from Comparative Examples 4 and 5, if the pH value of the system is too high or too low, the resulting cleaning agent composition will have a negative impact on Low-E glass or stainless steel.

[0064] As can be seen from Comparative Example 6, traditional solvent-based curtain wall cleaners have a low oil removal rate and can have a negative impact on Low-E glass and stainless steel.

[0065] As can be seen from Comparative Example 7, the oil removal rate of the bio-enzyme-based cleaner is significantly lower than that of the Example.

[0066] As can be seen from Comparative Example 8, when the amounts of nonylphenol polyoxyethylene ether phosphate and octylphenol polyoxyethylene ether are outside the scope of this invention, the overall performance of the resulting cleaning agent composition is significantly lower than that of the examples.

[0067] In summary, the schematic diagram of the function of the cleaning agent composition prepared in this invention is shown below. Figure 1 As shown, the components work synergistically to achieve a good oil removal rate while having no significant negative impact on glass and metal.

[0068] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A cleaning agent composition, characterized in that, Includes the following components, calculated in parts by weight: 8-20 parts of nonylphenol polyoxyethylene ether phosphate; 3-8 parts of octylphenol polyoxyethylene ether; 1-3 parts of amino acid derivative chelating agent; A suitable amount of pH buffer; 1-3 parts urea; 20-30 parts of propylene glycol; 50-60 parts water; The pH of the cleaning agent composition is 5.7 to 6.

5.

2. The cleaning composition according to claim 1, characterized in that, The mass ratio of nonylphenol polyoxyethylene ether phosphate to octylphenol polyoxyethylene ether is (2.5~3.5):

1.

3. The cleaning composition according to claim 1, characterized in that, The amino acid derivative chelating agents include one or more of ethylenediamine disuccinate, glutamic acid diacetate, or methylglycine diacetate.

4. The cleaning composition according to claim 3, characterized in that, The amino acid derivative chelating agents include one or more of ethylenediamine disuccinate trisodium, glutamate diacetate tetrasodium, or methylglycine diacetate trisodium.

5. The cleaning composition according to claim 1, characterized in that, The pH buffer includes a compound of hydrochloric acid, acetic acid and sodium acetate, and a compound of citric acid and sodium citrate.

6. The cleaning composition according to claim 5, characterized in that, Satisfy at least one of the following two conditions: (a) The pH buffer is a compound of citric acid and sodium citrate in a mass ratio of (0.1~5):1; (b) The mass ratio of urea to propylene glycol is 1:(10~15).

7. The cleaning composition according to claim 1, characterized in that, The critical micelle concentration of the cleaning agent composition is ≤0.95 mmol / L.

8. A method for preparing a cleaning agent composition according to any one of claims 1 to 7, characterized in that, Includes the following steps: S1. Heat water and add urea, propylene glycol and amino acid derivative chelating agent, stir until completely dissolved to obtain mixture A; S2. Under heating, add octylphenol polyoxyethylene ether to mixture A and stir until it is evenly mixed. Then add nonylphenol polyoxyethylene ether phosphate and continue stirring until it is clear and transparent to obtain mixture B. S3. Cool the mixture B described in step S2 to room temperature, add a pH buffer, stir until the pH value of the system is stable, and then allow it to stand for aging and filter to obtain the cleaning agent composition.

9. The use of the cleaning composition according to any one of claims 1 to 7 as a building curtain wall cleaning agent.

10. The use of the cleaning composition according to any one of claims 1 to 7 as a building facade cleaner for use in conjunction with a drone.

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