Graphene anti-friction glass cleaning agent and preparation method thereof

Abstract

The invention relates to the technical field of cleaning agents, and particularly discloses a graphene anti-friction glass cleaning agent and a preparation method thereof. The glass cleaning agent provided by the invention is prepared from the following components in parts by weight: 0.01 to 0.1 part of modified graphene, 60 to 80 parts of two-stage reverse osmosis purified water, 11 to 32 parts of an anti-freezing agent, 2 to 5 parts of a nonionic surfactant, 0.01 to 0.1 part of a corrosion inhibitor and 0.01 to 0.02 part of an anti-corrosion and anti-mildew agent, furthermore, the glass cleaning agent is prepared from the following components in parts by weight: 0.04 to 0.06 part of modified graphene, 70 to 75 parts of two-stage reverse osmosis purified water, 18 to 22 parts of an anti-freezing agent, 2 to 3 parts of a nonionic surfactant, 0.06 to 0.07 part of a corrosion inhibitor and 0.01 to 0.02 part of an anti-corrosion and anti-mildew agent. The glass cleaning agent provided by the invention not only has an excellent cleaning effect, but also can reduce the friction coefficient of the glass surface and reduce the abrasion of a windscreen wiper to the glass surface.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning agents, and in particular to a graphene anti-friction glass cleaning agent and a preparation method thereof. Background Art

[0002] With the continuous improvement of the technological level of my country's automobile industry, private cars have become an important tool for daily family travel. The majority of private car owners have higher and higher requirements for car maintenance, especially for the cleaning of car windshields. Car windshields are not only related to driving safety, but also directly affect the driving experience. In order to ensure the cleaning effect, the research and development of various car cleaning agents has become an inevitable trend. However, since the professional car maintenance products industry has entered the domestic market for a short time, car owners do not have enough understanding of the performance and use of cleaning agents. Therefore, how to improve the cleaning effect while protecting the glass surface has become a key factor in improving the quality of car maintenance.

[0003] In the early days, windshields were mainly cleaned with clean water or water with simple detergents added, but these detergents usually only focused on removing dirt without considering the wear and tear caused to the glass during the cleaning process. In recent years, some automotive cleaning agents on the market have added surfactants to enhance the cleaning effect and reduce glass damage; however, in actual applications, the friction between the wipers and the glass cannot be completely avoided, resulting in fine scratches on the glass surface, which affects the safety and comfort of driving vision; especially in the case of frequent cleaning and use of wipers, it is difficult to effectively balance the wear resistance and cleanliness of the glass surface. Summary of the invention

[0004] In order to overcome the problem that it is difficult to effectively balance wear resistance and cleanliness in existing glass cleaning agents, the present application provides a graphene anti-friction glass cleaning agent and a preparation method thereof.

[0005] In a first aspect, the present application provides a graphene anti-friction glass cleaning agent, which adopts the following technical solution: A graphene anti-friction glass cleaning agent comprises the following components in parts by weight: 0.01 to 0.1 parts of modified graphene, 60 to 80 parts of double-stage reverse osmosis purified water, 11 to 32 parts of antifreeze agent, 2 to 5 parts of non-ionic surfactant, 0.01 to 0.1 parts of corrosion inhibitor, and 0.01 to 0.02 parts of antiseptic and mildew inhibitor.

[0006] The present application provides a glass cleaning agent, which not only has an excellent cleaning effect, but also can form a protective film composed of modified graphene on the surface of the automobile windshield, thereby significantly reducing the friction coefficient of the glass surface, reducing the wear of the glass surface by the wiper during operation, and reducing the noise generated when the wiper is working. In addition, the non-ionic surfactant in the glass cleaning agent provided by the present application has a good cleaning effect, which can ensure that the glass surface is clean and residue-free, thereby improving the service life and cleaning efficiency of the wiper. The addition of antifreeze enables the cleaning agent to maintain good fluidity and cleaning effect in a low temperature environment, and is suitable for a wide temperature range. The presence of corrosion inhibitors can prevent corrosion of metal parts and extend the service life of wipers and related metal parts. The addition of anticorrosive and mildew-proof agents can ensure the stability and safety of the cleaning agent during storage and use. The present application obtains a glass cleaning agent with excellent cleaning performance, wear resistance and weather resistance by scientifically proportioning the above-mentioned ingredients, which greatly improves the maintenance effect of automobile windshields.

[0007] Optionally, the graphene anti-friction glass cleaning agent comprises the following components in parts by weight: 0.04-0.06 parts of modified graphene, 70-75 parts of double-stage reverse osmosis purified water, 18-22 parts of antifreeze, 2-3 parts of non-ionic surfactant, 0.06-0.07 parts of corrosion inhibitor, and 0.01-0.02 parts of antiseptic and mildew inhibitor.

[0008] In some embodiments, the weight portion of the modified graphene may be 0.01-0.04 part, 0.01-0.06 part, 0.01-1 part, 0.04-0.06 part, 0.04-1 part, or 0.06-1 part.

[0009] In a specific embodiment, the weight portion of the modified graphene can also be 0.01 part, 0.04 part, 0.06 part or 1 part.

[0010] Optionally, the method for preparing the modified graphene comprises the following steps: (1) adding graphene oxide to 20% hydrochloric acid, soaking for 10-15 minutes, and filtering; (2) adding graphene oxide to water, heating to 75-90° C., and ultrasonically dispersing for 30-40 minutes to obtain a graphene dispersion; (3) adding a titanate coupling agent to the graphene dispersion and stirring for 30-40 minutes, while maintaining the temperature at 75-90° C. during the stirring process; (4) freeze-drying the graphene dispersion obtained in step (3) to obtain modified graphene.

[0011] Optionally, the weight ratio of the graphene oxide to the titanate coupling agent is 1:(0.3-0.7).

[0012] In some embodiments, the weight ratio of the graphene oxide to the titanate coupling agent can be 1:(0.3-0.4), 1:(0.3-0.5), 1:(0.3-0.6), 1:(0.3-0.7), 1:(0.4-0.5), 1:(0.4-0.6), 1:(0.4-0.7), 1:(0.5-0.6), 1:(0.5-0.7) or 1:(0.6-0.7).

[0013] In a specific embodiment, the weight ratio of the graphene oxide to the titanate coupling agent can also be 1:0.3, 1:0.4, 1:0.5, 1:0.6 or 1:0.7.

[0014] Optionally, the weight ratio of the graphene oxide to the titanate coupling agent is 1:(0.3-0.7).

[0015] In the present application, graphene oxide is prepared into modified graphene by a specific treatment method. The modified graphene can enhance the effect of graphene in the glass cleaning agent on the one hand, and can form a graphene coating with a low friction coefficient on the glass surface on the other hand, thereby significantly resisting the wear of the wiper on the glass and reducing the working noise of the wiper. Through experimental research, the present application found that further controlling the weight ratio of graphene oxide and titanate coupling agent within the above range during the graphene oxide modification process can optimize the dispersion effect and anti-friction performance of graphene, making the use effect of the glass cleaning agent better.

[0016] Optionally, the titanate coupling agent is NXH-101.

[0017] Optionally, the number of layers of the graphene oxide is 1-3.

[0018] Optionally, the antifreeze agent is propylene glycol methyl ether and ethylene glycol in a weight ratio of (5-20):(80-95).

[0019] Optionally, the nonionic surfactant is selected from one or both of N-methylglucose cocoamide and fatty acid sugar amide, the corrosion inhibitor is aminotrimethylenephosphonic acid, and the preservative and mildew preventer is 3-iodo-2-propynyl-butylcarbamate.

[0020] In some embodiments, the weight ratio of propylene glycol methyl ether to ethylene glycol may be (5-10):(90-95) or (10-20):(80-90).

[0021] In a specific embodiment, the weight ratio of propylene glycol methyl ether to ethylene glycol can also be 5:95, 10:90 or 20:80.

[0022] In a second aspect, the present application provides a method for preparing a glass cleaning agent.

[0023] A method for preparing a glass cleaning agent comprises the following steps: adding each component into double-stage reverse osmosis purified water in sequence, stirring for 5-10 minutes, mixing evenly, and obtaining the glass cleaning agent.

[0024] In summary, this application has the following beneficial effects: 1. The present application adopts modified graphene, two-stage reverse osmosis water purification, antifreeze, etc. to prepare a glass cleaning agent, which not only has excellent cleaning effect, but also has good anti-friction performance, can reduce the friction coefficient of the glass surface, reduce the wear of the wiper on the glass surface during operation, and reduce the noise generated when the wiper is working.

[0025] 2. The present application further controls the weight ratio of graphene oxide to titanate coupling agent in the modified graphene within the range of 1:(0.4-0.6), and the amount of modified graphene added within the range of 0.04-0.06 parts, so that the obtained glass cleaning agent has better use effect and better protection against glass wear.

[0026] 3. The present application further selects propylene glycol methyl ether and ethylene glycol in a weight ratio of (5-20): (80-95) as antifreeze agents. The obtained glass cleaning agent has better weather resistance, a freezing point of -22 to -24°C, and can maintain good fluidity and cleaning effect in low temperature environments. DETAILED DESCRIPTION

[0027] The present application provides a graphene anti-friction glass cleaning agent, comprising the following components in parts by weight: 0.01-0.1 parts of modified graphene, 60-80 parts of double-stage reverse osmosis purified water, 11-32 parts of antifreeze, 2-5 parts of non-ionic surfactant, 0.01-0.1 parts of corrosion inhibitor, 0.01-0.02 parts of anticorrosion and mildew inhibitor. Further, the glass cleaning agent comprises the following components in parts by weight: 0.04-0.06 parts of modified graphene, 70-75 parts of double-stage reverse osmosis purified water, 18-22 parts of antifreeze, 2-3 parts of non-ionic surfactant, 0.06-0.07 parts of corrosion inhibitor, 0.01-0.02 parts of anticorrosion and mildew inhibitor.

[0028] Wherein, the preparation method of modified graphene comprises the following steps: (1) adding graphene oxide having 1 to 3 layers into 20% hydrochloric acid, soaking for 10 to 15 minutes, and filtering; (2) adding graphene oxide to water, heating to 75-90° C., and ultrasonically dispersing for 30-40 minutes to obtain a graphene dispersion; (3) adding a titanate coupling agent to the graphene dispersion and stirring for 30-40 minutes, while maintaining the temperature at 75-90° C. during the stirring process; (4) freeze-drying the graphene dispersion obtained in step (3) to obtain modified graphene.

[0029] The preparation method of the glass cleaning agent provided in the present application comprises the following steps: adding each component into double-stage reverse osmosis purified water in sequence, stirring for 5-10 minutes, mixing evenly, and obtaining the glass cleaning agent.

[0030] The sources of raw materials used in the embodiments of the present application are as follows: graphene oxide having 1-3 layers was purchased from Beijing Graphene Technology Research Institute; double-stage reverse osmosis water purification was prepared using a double-stage reverse osmosis filtration device; propylene glycol methyl ether was purchased from Shanghai Tichem Industrial Co., Ltd.; ethylene glycol was purchased from Shanghai Tichem Industrial Co., Ltd.; N-methylglucose cocoamide was purchased from Shanghai Hongfan Biotechnology Co., Ltd.; aminotrimethylenephosphonic acid was purchased from Bashifu (Shanghai) Biomedicine Technology Co., Ltd.; 3-iodo-2-propynyl-butylcarbamate was purchased from Wuhan Lingben Technology Co., Ltd.; the remaining raw materials, reagents, solvents, etc. used in this application can also be obtained commercially.

[0031] The present application is further described in detail below in combination with preparation examples, embodiments, and performance testing experiments.

[0032] Preparation Example 1 Preparation Example 1 provides a modified graphene.

[0033] The method for preparing the modified graphene comprises the following steps: (1) Add 100 g of graphene oxide to 100 g of 20% hydrochloric acid, soak for 10 min, and filter; (2) adding graphene oxide to 1300 g of water, heating to 80° C., and ultrasonically dispersing for 30 min to obtain a graphene dispersion; (3) Add 30 g of titanate coupling agent NXH-101 to the graphene dispersion and stir for 30 min. Keep the temperature at 80 °C during the stirring process. (4) freeze-drying the graphene dispersion obtained in step (3) to obtain modified graphene.

[0034] Preparation Example 2-4 Preparation Examples 2-4 each provide a modified graphene.

[0035] The difference between the above preparation example and preparation example 1 is that the weight ratio of graphene oxide to titanate coupling agent is specifically shown in Table 1 below.

[0036] Table 1 Weight ratio of graphene oxide to titanate coupling agent in Preparation Examples 2-4 Examples 1-5 Embodiments 1-5 each provide a glass cleaning agent.

[0037] The difference between the above embodiments is that the modified graphene is derived from Preparation Examples 1-5 respectively.

[0038] The preparation method of the glass cleaning agent provided in Examples 1-5 comprises the following steps: weighing 0.6 g of modified graphene, 200 g of antifreeze (propylene glycol methyl ether and ethylene glycol in a weight ratio of 10:90), 40 g of N-methylglucose cocoamide, 0.5 g of aminotri(methylenephosphonic acid), and 0.15 g of 3-iodo-2-propynyl-butylcarbamate, and adding the above components in sequence to 700 g of double-stage reverse osmosis purified water, stirring for 5 minutes, and mixing evenly to obtain a glass cleaning agent.

[0039] Embodiment 6-8 Embodiments 6-8 each provide a glass cleaning agent.

[0040] The difference between the above embodiment and embodiment 3 is that the amount of modified graphene added is specifically shown in Table 2 below.

[0041] Table 2 Addition amount of modified graphene in the glass cleaning agent provided in Example 3, Example 6-8 Example Addition amount of modified graphene (g) 3 0.6 6 0.1 7 0.4 8 1 Example 9 Example 9 provides a glass cleaning agent.

[0042] The difference between the above embodiment and embodiment 3 is that the antifreeze agent is propylene glycol methyl ether and ethylene glycol in a weight ratio of 5:95.

[0043] Example 10 Embodiment 10 provides a glass cleaning agent.

[0044] The difference between the above embodiment and embodiment 3 is that the antifreeze agent is propylene glycol methyl ether and ethylene glycol in a weight ratio of 20:80.

[0045] Embodiment 11 Example 11 provides a glass cleaning agent.

[0046] The difference between the above embodiment and embodiment 3 is that the antifreeze agent is propylene glycol methyl ether and ethylene glycol in a weight ratio of 30:70.

[0047] Comparative Example 1 Comparative Example 1 provides a glass cleaning agent.

[0048] The difference between the comparative example and Example 3 is that the modified graphene is replaced by graphene oxide.

[0049] Comparative Example 2 Comparative Example 2 provides a glass cleaning agent.

[0050] The preparation method of the glass cleaning agent is as follows: 260 g of methanol, 0.3 g of alkylphenol polyoxyethylene ether, and 5 g of triethanolamine are dissolved in 700 g of double-stage reverse osmosis purified water, and the mixture is mixed and stirred for 5 minutes to obtain the glass cleaning agent.

[0051] Performance testing The performance of the glass cleaning agents obtained in Examples 1-11 and Comparative Examples 1-2 was measured, and the results are shown in Table 3 below.

[0052] (1) Freezing point: Determined in accordance with SH / T 0090 Engine Coolant Freezing Point Determination Method; (2) Density: Determined in accordance with GB / T 2013-2010 Density determination method for liquid petrochemical products; (3) Surface scratch resistance: The glass surface is cleaned with the glass cleaning agent of the present application, and then the scratch resistance of the glass surface is tested according to the scratch resistance test method in GB / T17657-2022. The total length of the scratching is 1 circle; after the scratching is completed, the scratched area on the surface of the test piece is wiped with a color contrast agent to make the scratches obvious, and then the excess color contrast agent is wiped off with a clean cotton cloth, and the scratched area on the surface of the test piece is observed under natural light or an illumination of 800Lx-1000Lx.

[0053] Table 3 Performance test results of glass cleaning agents obtained from Examples 1-11 and Comparative Examples 1-2 According to the test results in Table 3, the freezing point of the glass cleaning agent obtained in Examples 1-11 is -20 to -24°C, and the density is 1.06 to 1.12 kg / m 3 The length of the scratch on the glass surface after the scratch test is 1 / 3 to 2 / 3 of a circle; while the freezing point of the glass cleaning agent obtained in Comparative Example 1-2 is -22 to -23°C, and the density is 0.81-0.96 kg / m 3 After the scratch test, the length of the scratch on the glass surface is 3 / 4 circle to 1 circle. Therefore, it is shown that the glass cleaning agent provided by the present application has good wear resistance and weather resistance, can reduce the wear of the glass surface by the wiper during operation, and has a good application prospect.

[0054] The test results of Examples 1-5 show that after the glass was cleaned with the glass cleaning agents obtained in Examples 1 and 5, the length of the scratch on the glass surface after the scratch test was 2 / 3 of a circle; while after the glass was cleaned with the glass cleaning agents obtained in Examples 2-4, the length of the scratch on the glass surface after the scratch test was 1 / 3 to 1 / 2 of a circle. Therefore, it is shown that the present application further controls the weight ratio of graphene oxide to titanate coupling agent within the range of 1:(0.4-0.6), the modification effect of graphene oxide is better, the obtained modified graphene has a better protective effect on the glass surface, and can achieve a better anti-wear protection effect on the glass surface.

[0055] The test results of Example 3 and Examples 6-8 show that after the glass was cleaned with the glass cleaning agent obtained in Example 6 and Example 8, the length of the scratch on the glass surface after the scratch test was 2 / 3 of a circle; while after the glass was cleaned with the glass cleaning agent obtained in Example 3 and Example 7, the length of the scratch on the glass surface after the scratch test was 1 / 3 of a circle. Therefore, it is explained that the application further controls the addition amount of modified graphene within the range of 0.04-0.06 parts, and the obtained glass cleaning agent has better use effect and better protection effect on glass wear resistance.

[0056] The test results of Example 3 and Examples 9-11 show that Example 11 uses propylene glycol methyl ether and ethylene glycol in a weight ratio of 30:70 as antifreeze, and the freezing point of the obtained glass cleaning agent is -20°C. Examples 3 and Examples 9-10 use propylene glycol methyl ether and ethylene glycol in a weight ratio of (5-20): (80-95) as antifreeze, and the freezing point of the obtained glass cleaning agent is -22 to -24°C. Therefore, it is explained that the present application uses propylene glycol methyl ether and ethylene glycol in a weight ratio of (5-20): (80-95) as antifreeze, and the obtained glass cleaning agent has better weather resistance and can maintain good fluidity and cleaning effect in low temperature environment.

[0057] Although the present invention has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements may be made thereto based on the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection claimed by the present invention.

Claims

1. A graphene anti-friction glass cleaning agent, characterized in that: The invention comprises the following components in parts by weight: 0.01 to 0.1 parts of modified graphene, 60 to 80 parts of double-stage reverse osmosis water purification, 11 to 32 parts of antifreeze agent, 2 to 5 parts of nonionic surfactant, 0.01 to 0.1 parts of corrosion inhibitor and 0.01 to 0.02 parts of antiseptic and mildew inhibitor.

2. The glass cleaning agent according to claim 1, characterized in that: The invention comprises the following components in parts by weight: 0.04-0.06 parts of modified graphene, 70-75 parts of double-stage reverse osmosis water purification, 18-22 parts of antifreeze agent, 2-3 parts of nonionic surfactant, 0.06-0.07 parts of corrosion inhibitor and 0.01-0.02 parts of antiseptic and mildew inhibitor.

3. The glass cleaning agent according to claim 1, characterized in that: The preparation method of the modified graphene comprises the following steps: (1) Add graphene oxide to 20% hydrochloric acid, soak for 10-15 minutes, and filter; (2) adding graphene oxide to water, heating to 75-90° C., and ultrasonically dispersing for 30-40 minutes to obtain a graphene dispersion; (3) Add titanate coupling agent to the graphene dispersion and stir for 30-40 minutes, while maintaining the temperature at 75-90°C during the stirring process; (4) freeze-drying the graphene dispersion obtained in step (3) to obtain modified graphene.

4. The glass cleaning agent according to claim 3, characterized in that: The weight ratio of the graphene oxide to the titanate coupling agent is 1:(0.3-0.7).

5. The glass cleaning agent according to claim 3, characterized in that: The titanate coupling agent is NXH-101.

6. The glass cleaning agent according to claim 3, characterized in that: The number of the graphene oxide sheets is 1-3 layers.

7. The glass cleaning agent according to claim 1, characterized in that: The antifreeze agent is propylene glycol methyl ether and ethylene glycol in a weight ratio of (5-20): (80-95).

8. The glass cleaning agent according to claim 1, characterized in that: The nonionic surfactant is selected from one or two of N-methylglucose cocoamide and fatty acid sugar amide, the corrosion inhibitor is aminotri(methylenephosphonic acid), and the preservative and mildew preventer is 3-iodo-2-propynyl-butylcarbamate.

9. The method for preparing a glass cleaning agent according to any one of claims 1 to 8, characterized in that: The following steps are involved: Add each component into the double-stage reverse osmosis purified water in turn, stir for 5-10 minutes, mix evenly, and obtain a glass cleaning agent.

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