CN117165354A - Preparation method of cleaning and protecting liquid for A+B type automobile brake system - Google Patents
Preparation method of cleaning and protecting liquid for A+B type automobile brake system Download PDFInfo
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- CN117165354A CN117165354A CN202311138719.7A CN202311138719A CN117165354A CN 117165354 A CN117165354 A CN 117165354A CN 202311138719 A CN202311138719 A CN 202311138719A CN 117165354 A CN117165354 A CN 117165354A
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- 239000007788 liquid Substances 0.000 title claims abstract description 61
- 238000002360 preparation method Methods 0.000 title claims abstract description 34
- 238000004140 cleaning Methods 0.000 title claims abstract description 27
- 239000012530 fluid Substances 0.000 claims abstract description 30
- 239000000243 solution Substances 0.000 claims abstract description 21
- 239000011259 mixed solution Substances 0.000 claims abstract description 14
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 24
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 19
- 229920000570 polyether Polymers 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 16
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 229920005862 polyol Polymers 0.000 claims description 14
- -1 Boric acid ester Chemical class 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 11
- 150000003077 polyols Chemical class 0.000 claims description 11
- 239000004327 boric acid Substances 0.000 claims description 9
- POLCUAVZOMRGSN-UHFFFAOYSA-N dipropyl ether Chemical compound CCCOCCC POLCUAVZOMRGSN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229930185605 Bisphenol Natural products 0.000 claims description 5
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 5
- 239000012964 benzotriazole Substances 0.000 claims description 5
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 5
- TUEYHEWXYWCDHA-UHFFFAOYSA-N ethyl 5-methylthiadiazole-4-carboxylate Chemical group CCOC(=O)C=1N=NSC=1C TUEYHEWXYWCDHA-UHFFFAOYSA-N 0.000 claims description 5
- 125000003698 tetramethyl group Chemical group [H]C([H])([H])* 0.000 claims description 5
- KCBPVRDDYVJQHA-UHFFFAOYSA-N 2-[2-(2-propoxyethoxy)ethoxy]ethanol Chemical group CCCOCCOCCOCCO KCBPVRDDYVJQHA-UHFFFAOYSA-N 0.000 claims description 4
- DSILSMIQUPKHSH-UHFFFAOYSA-N 2-[2-(2-methoxyethoxy)ethoxy]ethoxyboronic acid Chemical group COCCOCCOCCOB(O)O DSILSMIQUPKHSH-UHFFFAOYSA-N 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 239000002923 metal particle Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000002904 solvent Substances 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 150000002894 organic compounds Chemical class 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000976 ink Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000002000 Electrolyte additive Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Detergent Compositions (AREA)
Abstract
The application provides a preparation method of an A+B type automobile brake system cleaning and protecting liquid, and relates to the technical field of cleaning and protecting liquids. The preparation method of the cleaning and protecting liquid for the A+B type automobile brake system specifically comprises the following steps: s1, preparing a mixed solution base solution A; s2, preparing a mixed solution base solution B; s3, preparing brake fluid. The application provides a preparation method of an A+B type automobile brake system cleaning and protecting liquid, which can clean moisture, metal particles and dust in a brake system.
Description
Technical Field
The application relates to the technical field of cleaning protection liquid, in particular to a preparation method of an A+B type automobile brake system cleaning protection liquid.
Background
The locomotive brake fluid is the same as lubricating oil and is an indispensable component for enabling the engine to work normally. The brake fluid is a pressure transmission medium in a brake system and has the functions of lubrication, rust prevention, air resistance prevention and the like. The brake fluid consists of boric acid ester, ether, diethylene glycol and the like and various additives. Domestic locomotive brake fluid is divided into four types of HZY3, HZY4, HZY5 and ZHY6 according to the use conditions; wherein HZY4 is the main application product. The basic raw materials in the brake fluid are the most main components, the influence on the product index and the use of the brake fluid is huge, the brake fluid level in the 60-70 s is low, the brake fluid is prepared from ethylene glycol or diethylene glycol compound point additive, the performance is low, the dry boiling point and the wet boiling point are not high, and safety accidents are easy to occur. With the development of the automobile industry and the development of brake fluid for high-end automobiles and high-speed automobiles, the demand for high-quality products in particular has increased greatly. It is also critical to clean the "dirt" within the brake system when the system is changing fluids. If effective cleaning is not carried out, the service life of the newly added brake fluid can be influenced, and meanwhile, the residual impurities can influence the braking effect, so that the brake fluid has great potential safety hazard.
Brake fluid has been developed for more than 30 years, but in the existing product technology, the cleaning technology of the brake fluid has a great development space, and the method provided herein aims to effectively clean residues in a system to be improved while the product meets the standard requirement of the brake fluid, and the problems of influence of dampness on the brake fluid, moisture absorption, reduction of the boiling point of the product, unstable pH value and the like in the production process affect the production control and the production cost of the product.
Therefore, the application provides a preparation method of an A+B type automobile brake system cleaning and protecting liquid, which aims to solve the problems in the background technology.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the application provides a preparation method of an A+B type automobile brake system cleaning protection liquid, which solves the problems that the brake liquid is affected by moisture, absorbs moisture, reduces the boiling point of a product and has unstable pH value in the production process, and the production control and the production cost of the product are affected.
(II) technical scheme
In order to achieve the above purpose, the application is realized by the following technical scheme: a preparation method of A+B type automobile brake system cleaning protection liquid specifically comprises the following steps:
s1, preparing a mixed solution base solution A
Boric acid ester, polyol propyl ether, polyether and polyol tetramethyl ether are mixed according to the ratio of 0.5:3:0.5:2.5, mixing and stirring for 0.3h to obtain mixed liquid base liquid A;
s2, preparing mixed solution base solution B
Benzotriazole, bisphenol A2, 64 and diethylene glycol are mixed according to the weight ratio of 1:1:88, stirring for 0.3h, and adding triethanolamine, wherein the weight ratio of the triethanolamine is that: triethanolamine = 100:1, stirring for 0.3h to obtain mixed liquid base liquid B;
s3, preparing brake fluid
And (3) mixing the brake fluid for 0.3h according to the mass ratio A, B=1:1, and thus completing the preparation of the brake fluid.
Preferably, the preparation of the mixed liquid base liquid A in the step S1 is completed under the airtight vacuum condition or under the protection of nitrogen.
Preferably, in the preparation of the mixed solution base solution B in the step S2, the temperature is reduced to below 30 ℃ after the mixed heating temperature is 50+/-5 ℃ and the mixed solution is stirred and mixed completely, and then the next step is carried out.
Preferably, the preparation of the brake fluid in the step S3 is completed under the condition of airtight vacuum or under the protection of nitrogen.
Preferably, in the method, the A base solution and the B base solution can be independently packaged into products.
Preferably, in the step S1, the borate is triethylene glycol methyl ether borate, the propyl ether is triethylene glycol propyl ether, the polyether is ethoxylated polyether, and the polyol methyl ether is tetraethylene glycol monomethyl ether.
(III) beneficial effects
The application provides a preparation method of an A+B type automobile brake system cleaning and protecting liquid. The beneficial effects are as follows:
the application provides a preparation method of A+B type automobile brake system cleaning protection liquid, which is prepared by taking various raw materials such as borate/polyol ether, diethylene glycol and the like as carriers and adding polyalcohol amine, low-temperature antioxidant and metal passivating agent for blending.
The application provides a preparation method of A+B type automobile brake system cleaning protection liquid, which adopts polyether, borate and the like as main raw materials of the brake liquid, and can attach a film to the surface of a metal part in the brake system, thereby delaying the corrosion process.
The application provides a preparation method of A+B type automobile brake system cleaning protection liquid, wherein the A liquid and the B liquid are packaged separately, and the combined use effect is better, because in order to better dissolve additives in the production process, heating can affect boric acid ether products, and meanwhile, the requirement on the adding method of solid additives is more severe, in order to reduce the intervention of moisture and oxygen in external air and reduce the production cost, the A, B separate production packaging effect is better.
Drawings
FIG. 1 is a table of the detection results of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1:
the embodiment of the application provides a preparation method of an A+B type automobile brake system cleaning and protecting liquid, which specifically comprises the following steps:
s1, preparing a mixed solution base solution A
Boric acid ester, polyol propyl ether, polyether and polyol tetramethyl ether are mixed according to the ratio of 0.5:3:0.5:2.5, mixing and stirring for 0.3h to obtain mixed liquid base liquid A;
s2, preparing mixed solution base solution B
Benzotriazole, bisphenol A2, 64 and diethylene glycol are mixed according to the weight ratio of 1:1:88, stirring for 0.3h, and adding triethanolamine, wherein the weight ratio of the triethanolamine is that: triethanolamine = 100:1, stirring for 0.3h to obtain mixed liquid base liquid B;
s3, preparing brake fluid
And (3) mixing the brake fluid for 0.3h according to the mass ratio A, B=1:1, and thus completing the preparation of the brake fluid.
In the preparation process of the mixed solution base solution A in the step S1, the preparation is required to be completed under the sealed vacuum condition or under the protection of nitrogen, in the preparation of the mixed solution base solution B in the step S2, after the mixed heating temperature is 50+/-5 ℃ and the mixed temperature is stirred and mixed completely, the temperature is reduced to below 30 ℃, the next step is carried out, in the preparation of the brake solution in the step S3, the preparation is required to be completed under the sealed vacuum condition or under the protection of nitrogen, in the method, the base solution A and the base solution B can be independently packaged into products, when in use, the combination use effect of A+B is better, but can also be independently used, boric acid ester in the step S1 is triethylene glycol methyl ether boric acid ester, propyl ether is triethylene glycol propyl ether, polyether is ethoxylated polyether, and polyol methyl ether is tetraethylene glycol monomethyl ether.
Triethylene glycol methyl ether borate, also known as TEGDME borate, is an organic compound. It is formed by the reaction of triethylene glycol methyl ether (TEGDME) and boric acid. TEGDME borate is widely used as an electrolyte additive in lithium ion batteries and other electrochemical energy storage systems. The high-performance high-power lithium ion battery has excellent solubility, stability and conductivity, and plays an important role in improving the battery performance;
triethylene glycol propyl ether, also known as TEGDME, is an organic compound. It is colorless, odorless liquid with good solubility and stability. TEGDME is commonly used as a solvent, medium and reactant, and has wide application in the fields of chemistry, electronics, and batteries. For example, TEGDME may be used as an extractant, a lubricant, and a solvent for polymerization.
Ethoxylated polyether means a polymer obtained by introducing ethoxy (C2H 5O) groups on the polyether chain. They are polymerized from glycol ether (ethylene glycol ether) monomers. Ethoxylated polyethers are of great interest due to their excellent solubility, stability and softness.
Ethoxylated polyethers are commonly used as solvents, surfactants and plasticizers. They find wide application in the fields of paints, inks, cleaners, dyes and medicine. As a solvent, ethoxylated polyethers can dissolve many organic compounds, helping to adjust the viscosity of the solution and reduce surface tension. As surfactants, they act as stabilizing and dispersing agents in emulsions, emulsifiers and lubricants. In addition, the ethoxylated polyether may also act as a plasticizer for the polymer, improving the softness and processability of the polymer.
Tetraethylene glycol monomethyl ether (Tetraethylene glycol monomethyl ether) is an organic solvent, also known simply as TEGME. It is a colorless, transparent liquid with good solubility and volatility.
TEGME is commonly used as a solvent and plasticizer, and has utility in a variety of applications. For example, in chemical synthesis, it may be used as a solvent or extractant to aid in the mixing and separation of the reaction materials. In coatings and inks, TEGME can be used as a solvent and diluent to improve the performance and stability of the coating. In addition, it can be used as a cleaning agent and a release agent in the electronics industry to remove surface contaminants and deposits.
Example 2:
as shown in fig. 1, the embodiment of the application provides a preparation method of a cleaning and protecting liquid for an a+b type automobile brake system, which specifically comprises the following steps:
blending tank 1 under vacuum, boric acid ester, polyol propyl ether, polyether, polyol tetramethyl ether according to 0.5:3:0.5:2.5, mixing and stirring for 0.3h to obtain mixed liquid base liquid A;
the blending tank 2 is used for mixing benzotriazole, bisphenol A2 and 64 with diethylene glycol according to the weight ratio of 1:1:88, stirring for 0.3h, and then adding diethanolamine, wherein the weight ratio of the diethanolamine to the mixed solution is as follows: triethanolamine = 100:1, mixing and heating at 50+/-5 ℃ for 0.3h to obtain mixed liquid base liquid B; vacuumizing for 1h and exhausting. B is pumped into the blending tank 1 according to the mass ratio A, B=1:1, and is mixed for 0.3h, so that the brake fluid finished product liquid can be obtained.
Example 3:
as shown in fig. 1, the embodiment of the application provides a preparation method of a cleaning and protecting liquid for an a+b type automobile brake system, which specifically comprises the following steps:
(1) Under vacuum or in a nitrogen environment, boric acid ester, polyol propyl ether, polyether and polyol tetramethyl ether are mixed according to the mass ratio of 0.5:3:0.5:2.5, mixing and stirring for 0.3h to obtain mixed liquid base liquid A;
(2) Benzotriazole, bisphenol A2, 64 and diethylene glycol are mixed according to the weight ratio of 1:1:88, stirring for 0.3h, and then adding diethanolamine, wherein the weight ratio of the diethanolamine to the mixed solution is as follows: triethanolamine = 100:1, mixing and heating at 50+/-5 ℃ for 0.3h to obtain mixed liquid base liquid B;
(3) And (1) sub-packaging into solution A and (2) sub-packaging into solution B.
The example in the case of HZY4 was specifically examined as follows:
all experimental methods of each item adopt the experimental methods specified in GB12981-2012 brake fluid for motor vehicles.
The specific detection results are shown in the table of fig. 1.
Comparison analysis of detection index by the technique of fig. 1:
1. the technical indexes of examples 2 and 3 relatively meet the standard requirements under the condition of considering experimental errors, and the index of example 3 is relatively good
2. The application aims at saving energy and being efficient under the condition of meeting the technical index requirements of products, and is a good choice for production factories:
3. example 3, the A+B combination, is also better in product storage stability than example 2, and will not be described here.
4. The "dirt" remaining in the brake system mainly comprises: moisture, metal particulates, rust, dust, etc. The ether product contained in the product A has stronger water absorption and polarity, has better absorption and dispersion effects on the dirt, can be effectively neutralized by adding the B after cleaning to form liquid capable of meeting the requirement of a brake system, and has no influence on the newly added liquid preparation technical index. Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. The specification and examples are to be regarded in an illustrative manner only.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The preparation method of the A+B type automobile brake system cleaning and protecting liquid is characterized by comprising the following steps of:
s1, preparing a mixed solution base solution A
Boric acid ester, polyol propyl ether, polyether and polyol tetramethyl ether are mixed according to the ratio of 0.5:3:0.5:2.5, mixing and stirring for 0.3h to obtain mixed liquid base liquid A;
s2, preparing mixed solution base solution B
Benzotriazole, bisphenol A2, 64 and diethylene glycol are mixed according to the weight ratio of 1:1:88, stirring for 0.3h, and adding triethanolamine, wherein the weight ratio of the triethanolamine is that: triethanolamine = 100:1, stirring for 0.3h to obtain mixed liquid base liquid B;
s3, preparing brake fluid
And (3) mixing the brake fluid for 0.3h according to the mass ratio A, B=1:1, and thus completing the preparation of the brake fluid.
2. The method for preparing the cleaning and protecting liquid for the A+B type automobile brake system according to claim 1, which is characterized in that: in the preparation process of the mixed liquid base liquid A in the step S1, the preparation is completed under the condition of airtight vacuum or under the protection of nitrogen.
3. The method for preparing the cleaning and protecting liquid for the A+B type automobile brake system according to claim 1, which is characterized in that: and (2) in the preparation of the mixed liquid base liquid B in the step (S2), after the mixed heating temperature is 50+/-5 ℃ and the mixed liquid base liquid B is stirred and mixed completely, the temperature is reduced to below 30 ℃ and then the next step is carried out.
4. The method for preparing the cleaning and protecting liquid for the A+B type automobile brake system according to claim 1, which is characterized in that: in the preparation of the brake fluid in the step S3, the preparation is completed under the airtight vacuum condition or under the protection of nitrogen.
5. The method for preparing the cleaning and protecting liquid for the A+B type automobile brake system according to claim 1, which is characterized in that: in the method, the base solution A and the base solution B can be independently packaged into products.
6. The method for preparing the cleaning and protecting liquid for the A+B type automobile brake system according to claim 1, which is characterized in that: in the step S1, the borate is triethylene glycol methyl ether borate, the propyl ether is triethylene glycol propyl ether, the polyether is ethoxylated polyether, and the polyol methyl ether is tetraethylene glycol monomethyl ether.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311138719.7A CN117165354A (en) | 2023-09-05 | 2023-09-05 | Preparation method of cleaning and protecting liquid for A+B type automobile brake system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311138719.7A CN117165354A (en) | 2023-09-05 | 2023-09-05 | Preparation method of cleaning and protecting liquid for A+B type automobile brake system |
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