A cleaning agent capable of improving color difference and its preparation method and application

Abstract

The present invention discloses a cleaning agent capable of improving color difference, which is made of the following components by mass fraction: 8% to 10% sodium silicate; 10% to 14% sodium carbonate; 15% to 18% glycerol; 8% to 10% fatty alcohol polyoxyethylene ether; 2% to 4% nonionic surfactant; 2% to 4% corrosion inhibitor; and the balance is water. The cleaning agent capable of improving color difference of the present invention is suitable for cleaning materials or products after anodization, and is particularly suitable for cleaning products made of aluminum materials. It can slow down the corrosion treatment on the surface of the product, thereby achieving basically no effect on the color difference of the product surface, and is a water-based cleaning agent with good safety and low cost. The present invention also discloses a preparation method and application of a cleaning agent capable of improving color difference. The preparation method is simple, fast, efficient, and time-saving.

Description

Technical Field

[0001] The invention relates to a cleaning agent capable of improving color difference and a preparation method and application thereof. Background Art

[0002] In order to overcome the requirements of aluminum alloy surface hardness, wear resistance, corrosion resistance and color, general products need to be anodized. There is a cleaning step in the anodizing process. The existing cleaning agents have a great influence on the color difference of the products after anodization, and cannot guarantee the control of the color difference of the re-coating. At the same time, there are many studies on glass cleaning agents on the market. For example, the Chinese patent with application number 201210242487.5 discloses a water-based cleaning agent before optical glass coating, which has good cleaning effect; the Chinese patent with application number 201710586960.4 discloses a water-based cleaning agent and its preparation method, so that the water-based cleaning agent will not cause corrosion to the AF or AR film on the surface of sapphire, and the recycling cycle of the cleaning agent is greatly increased, and the yield during cleaning is also improved; the Chinese patent with application number 201911272049.1 discloses a magnesium alloy cleaning agent and method with excellent cleaning and anti-corrosion effects. Patent application number CN 201710586960.4 discloses a method for preparing a water-based cleaning agent, but the stirring time is long, the speed is slow, and the efficiency is low.

[0003] However, there is little research and application of cleaning agents for aluminum products, which cannot meet the needs of technology research and development and cleaning of anodized aluminum products. In addition, the stirring speed is slow and the efficiency is low. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a cleaning agent that can improve color difference. The cleaning agent is suitable for cleaning materials or products after anodizing, especially for cleaning products made of aluminum materials. The cleaning agent can slow down the corrosion treatment on the surface of the product, thereby achieving basically no effect on the color difference of the product surface. The cleaning agent is water-based, has good safety and low cost.

[0005] Another object of the present invention is to provide a preparation method and application of a cleaning agent capable of improving color difference.

[0006] A technical solution to achieve the above purpose is: a cleaning agent capable of improving color difference, which is made of the following components by mass fraction:

[0007]

[0008] The above-mentioned cleaning agent capable of improving color difference is made of the following components by mass fraction:

[0009]

[0010] The above-mentioned cleaning agent capable of improving color difference is made of the following components by mass fraction:

[0011]

[0012] The above-mentioned cleaning agent capable of improving color difference, wherein the non-ionic surfactant is XP70, XP90, TO9 or XL80.

[0013] The above-mentioned cleaning agent capable of improving color difference, wherein the XP70 is compounded with anionic surfactant, cationic surfactant or other non-ionic surfactant to form a solvent-based auxiliary agent.

[0014] In the above-mentioned cleaning agent capable of improving color difference, the corrosion inhibitor is benzotriazole, phosphine carboxylic acid or mercaptobenzothiazole.

[0015] The present invention also provides a method for preparing the above-mentioned cleaning agent capable of improving color difference, comprising the following steps:

[0016] Firstly, sodium silicate, sodium carbonate, glycerol, fatty alcohol polyoxyethylene ether and water are uniformly mixed to obtain a mixed solution;

[0017] Then, a nonionic surfactant and a corrosion inhibitor are added to the mixed solution respectively by using a pipette, and the mixture is stirred for 5 to 10 minutes at a room temperature of 24 to 32 degrees to obtain a cleaning agent capable of improving color difference.

[0018] The present invention also provides an application of the above-mentioned cleaning agent capable of improving color difference, wherein the cleaning agent capable of improving color difference is used for cleaning substrates made of metal materials or products after anodization.

[0019] In the above-mentioned application of a cleaning agent capable of improving color difference, the metal material is stainless steel, aluminum or titanium.

[0020] The above-mentioned use of a cleaning agent capable of improving color difference, wherein the anodized product is made of stainless steel, aluminum or titanium

[0021] The cleaning agent capable of improving color difference and its preparation method and application technical scheme of the present invention are suitable for cleaning materials or products after anodization, especially for cleaning products made of aluminum materials, and can slow down the corrosion treatment on the surface of the product, thereby achieving almost no effect on the color difference of the product surface, and is a water-based cleaning agent with good safety and low cost. The preparation method of the cleaning agent capable of improving color difference in the present invention is fast, efficient and time-saving. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the specific implementation methods are described in detail below:

[0023] Table 1, embodiment formula table:

[0024]

[0025] The cleaning agents of Examples 1 to 6 were prepared according to the formula in Table 1, wherein AEO was fatty alcohol polyoxyethylene ether; XP70 was a nonionic surfactant, and benzotriazole was a corrosion inhibitor.

[0026] The preparation method of the cleaning agent comprises the following steps:

[0027] Firstly, sodium silicate, sodium carbonate, glycerol, fatty alcohol polyoxyethylene ether and water are uniformly mixed to obtain a mixed solution;

[0028] Then, the nonionic surfactant and the corrosion inhibitor are added to the mixed solution respectively by using a pipette, and stirred at room temperature of 24 to 32 degrees for 5 to 10 minutes to mix evenly to obtain the cleaning agent, preferably for 6 to 9 minutes. The preparation method is simple, fast, efficient and time-saving.

[0029] Then, the cleaning agents of Examples 1 to 6 were used to clean the anodized aluminum product. The preliminary process of the entire cleaning process was: cleaning agent cleaning → spraying → rinsing 3 times → ultrasonic rinsing 2 times → slow pulling → drying, and the changes in the L* value, a* value, and b* value of the surface color of the aluminum product before and after cleaning were detected. The test results are as follows:

[0030] Table 2, changes in L* value, a* value and b* value of the surface color of aluminum material products before and after cleaning:

[0031]

[0032] It can be seen from the experimental results in Table 2 that the cleaning agent capable of improving color difference of the present invention is prepared by selecting the formula of Example 4. By compounding the components, the cleaning agent of this formula will not corrode the product substrate, and the product surface can meet the appearance requirements, such as no dirt, discoloration, white spots and other poor appearances, and there is basically no effect on the color difference after the anode before and after cleaning. Moreover, this cleaning agent capable of improving color difference is a water-based cleaning agent, which has the advantages of safety and low price compared with organic solvent cleaning agents.

[0033] Table 3, specific formula examples of cleaning agents that can improve color difference:

[0034]

[0035]

[0036] The cleaning agents capable of improving color difference of Examples 7 to 10 were prepared according to the formula in Table 3. In Table 3, AEO is fatty alcohol polyoxyethylene ether; XP70, XP90, TO9, and XL80 are nonionic surfactants; and benzotriazole, phosphine carboxylic acid, and mercaptobenzothiazole are corrosion inhibitors.

[0037] Then, the cleaning agent capable of improving color difference of Examples 7 to 10 is used to clean anodized aluminum products, such as watch frames and watch straps made of aluminum and titanium as the main components. The preliminary process of the entire cleaning process is: cleaning agent cleaning → spraying → rinsing 3 times → ultrasonic rinsing 2 times → slow pulling → drying, and the changes in the L* value, a* value and b* value of the surface color of the aluminum product before and after cleaning are detected. The test results are as follows:

[0038] Table 4, changes in L* value, a* value and b* value of the surface color of aluminum material products before and after cleaning:

[0039] Example No. Appearance after cleaning Change before and after cleaning (L*a*b*) 7 No corrosion, no dirt L*:0.45a*:0.06b*:-0.20 8 No corrosion, no dirt L*:0.47a*:0.08b*:-0.22 9 No corrosion, no dirt L*:0.47a*:0.07b*:-0.21 10 No corrosion, no dirt L*:0.43a*:0.03b*:-0.24

[0040] A nonionic surfactant is added to the cleaning agent capable of improving color difference of the present invention. XP70 is a nonionic surfactant. As a solvent-based auxiliary agent, XP70 can also be compounded with anionic surfactants, cationic surfactants, and other nonionic surfactants to enhance solvent permeability and wettability.

[0041] In the cleaning agent capable of improving color difference and the preparation method thereof of the present invention, a corrosion inhibitor is also added. The corrosion inhibitor is preferably an anodic corrosion inhibitor, preferably benzotriazole, which mainly acts on the metal ions in the anode area of ​​the metal surface to generate an oxide or hydroxide oxide film covering the anode to form a protective film. In this way, the metal is inhibited from dissolving into water. The anode reaction is controlled and the anode is passivated, and the purpose of corrosion inhibition is also achieved by inhibiting the anode process of the corrosion reaction.

[0042] In summary, the cleaning agent capable of improving color difference of the present invention and the preparation method thereof can slow down the erosion treatment on the product surface, thereby achieving substantially no effect on the color difference on the product surface, and is a water-based cleaning agent with good safety and low cost.

[0043] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A cleaning agent capable of improving color difference, characterized in that: By mass fraction, it is made of the following components: The balance is water Among them, the fatty alcohol polyoxyethylene ether adopts isomeric 10-alcohol polyoxyethylene ether or isomeric 13-alcohol polyoxyethylene ether, the nonionic surfactant adopts isomeric 10-alcohol polyoxyethylene ether or isomeric 13-alcohol polyoxyethylene ether, and the corrosion inhibitor adopts benzotriazole, phosphine carboxylic acid or mercaptobenzothiazole.

2. A cleaning agent capable of improving color difference as claimed in claim 1, characterized in that: By mass fraction, it is made of the following components: The balance is water.

3. A cleaning agent capable of improving color difference as claimed in claim 1, characterized in that: By mass fraction, it is made of the following components: The balance is water.

4. A method for preparing a cleaning agent capable of improving color difference as claimed in claim 1, characterized in that: The following steps are involved: Firstly, sodium silicate, sodium carbonate, glycerol, fatty alcohol polyoxyethylene ether and water are uniformly mixed to obtain a mixed solution; Then, a nonionic surfactant and a corrosion inhibitor are added to the mixed solution respectively by using a pipette, and the mixture is stirred for 5 to 10 minutes at a room temperature of 24 to 32 degrees to obtain a cleaning agent capable of improving color difference.

5. An application of a cleaning agent capable of improving color difference, characterized in that: The cleaning agent capable of improving color difference as described in any one of claims 1 to 3 is used for cleaning substrates made of metal materials or anodized products.

6. The use of a cleaning agent capable of improving color difference as claimed in claim 5, characterized in that: The metal material is stainless steel, aluminum or titanium.

7. The use of a cleaning agent capable of improving color difference as claimed in claim 5, characterized in that: The anodized product is made of stainless steel, aluminum or titanium.

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