CN114410368A - Novel automobile brake fluid and preparation method thereof - Google Patents
Novel automobile brake fluid and preparation method thereof Download PDFInfo
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- CN114410368A CN114410368A CN202210074193.XA CN202210074193A CN114410368A CN 114410368 A CN114410368 A CN 114410368A CN 202210074193 A CN202210074193 A CN 202210074193A CN 114410368 A CN114410368 A CN 114410368A
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M161/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
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- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
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- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
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- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
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- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
- C10M2227/061—Esters derived from boron
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- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
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Abstract
The invention discloses a novel automobile brake fluid and a preparation method thereof, wherein the novel automobile brake fluid comprises the following components in parts by weight: 18-25 parts of diethylene glycol, 12-22 parts of ethylene glycol, 8-30 parts of borate, 11-15 parts of butyl carbitol, 7-9 parts of butyl carbitol, 3-6 parts of lipophilic composite modifier, 0.5-2 parts of antioxidant, 1-4 parts of pH regulator and 0.8-2.5 parts of polybasic organic acid; the lipophilic composite modifier in the invention can make the novel brake fluid more uniform and stable, is not easy to generate separation or precipitation phenomenon in the using process, and has good frost resistance and impermeability; in addition, the polybasic organic acid added in the invention can be used as a stabilizer, and the stabilizer can improve the heat resistance, the cold resistance and the corrosion resistance of the brake fluid; therefore, the novel automobile brake fluid prepared by the invention has the advantages of good stability, corrosion resistance, higher boiling point, proper high-temperature viscosity and good low-temperature fluidity.
Description
Technical Field
The invention relates to the technical field of automobile brake fluid, in particular to novel automobile brake fluid and a preparation method thereof.
Background
The brake fluid is also called brake oil, the brake working pressure of the brake fluid is generally 2MPa, and the brake working pressure can reach 4-5 MPa. All liquids have incompressible properties and when the liquid is subjected to pressure in a sealed container or a liquid filled conduit, it will quickly and uniformly transmit the pressure to the various parts of the liquid.
Brake fluid is a liquid medium that transmits brake pressure in a hydraulic brake system, and is an indispensable part for braking the brake system when used in a vehicle that employs the hydraulic brake system. In the brake system, which is a medium for force transmission, the pressure output from the master pump is directly transmitted to the slave pumps through the brake fluid. The existing automobile brake fluid has poor water resistance, and when water enters the automobile brake fluid, separation and precipitation phenomena are easily generated, so that the uniformity and stability of the automobile brake fluid are reduced, and the safety performance of the brake fluid is influenced.
Disclosure of Invention
The invention aims to provide a novel automobile brake fluid and a preparation method thereof, the preparation process is simple and easy to operate, and the prepared novel automobile brake fluid has good stability, corrosion resistance, higher boiling point, proper high-temperature viscosity and good low-temperature fluidity.
In order to achieve the purpose, the invention adopts the following technical scheme:
the novel automobile brake fluid comprises the following components in parts by weight: 18-25 parts of diethylene glycol, 12-22 parts of ethylene glycol, 8-30 parts of borate, 11-15 parts of butyl carbitol, 7-9 parts of butyl carbitol, 3-6 parts of lipophilic composite modifier, 0.5-2 parts of antioxidant, 1-4 parts of pH regulator and 0.8-2.5 parts of polybasic organic acid.
Preferably, the lipophilic composite modifier is prepared by mixing isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate according to the proportion of 1:1.5: 0.7.
Preferably, the borate is one of polyethylene glycol borate, propylene glycol monomethyl ether borate or a mixture thereof.
Preferably, the antioxidant is one of 2, 6-di-tert-butyl-p-cresol, bisphenol A and 4-methyl-2, 6-di-tert-butylphenol.
Preferably, the pH adjusting agent is triethanolamine.
Preferably, the polybasic organic acid is one or a mixture of tartaric acid, nicotinic acid or lactic acid.
A preparation method of novel automobile brake fluid comprises the following steps:
s1, uniformly mixing isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate to prepare the lipophilic composite modifier, wherein the weight part ratio of isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate is 1:1.5: 0.7;
s2, adding 18-25 parts of diethylene glycol, 12-22 parts of ethylene glycol, 8-30 parts of borate, 11-15 parts of butyl carbitol and 7-9 parts of butyl carbitol into a reaction container, stirring and heating;
s3, keeping the temperature until the temperature rises to 75-85 ℃, keeping the temperature, continuing to stir for 15-30 minutes, sequentially adding 3-6 parts of lipophilic composite modifier, 0.5-2 parts of antioxidant and 0.8-2.5 parts of polybasic organic acid, stirring for 8-12 minutes, then adding 1-4 parts of pH regulator, and continuing to stir for 5-10 minutes;
and S4, filtering through a 0.1um filter, and subpackaging to obtain the novel automobile brake fluid.
After adopting the technical scheme, compared with the background technology, the invention has the following advantages:
the lipophilic composite modifier added in the novel automobile brake fluid is formed by mixing isotridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolaurantiyl phosphate according to the proportion of 1:1.5:0.7, can effectively improve the surface activity of other components, improve the dispersion, wetting and permeability of the components, and also can effectively coat the water mixed in the brake fluid to form a stable water-in-oil phenomenon, even if the water enters the brake fluid, a particle surface can be formed to be uniformly mixed with the brake fluid, so that the novel brake fluid is more uniform and stable, the phenomenon of separation or precipitation is not easy to generate in the using process, and the frost resistance and the impermeability are good; in addition, the polybasic organic acid added in the invention can be used as a stabilizer, and the stabilizer can improve the heat resistance, the cold resistance and the corrosion resistance of the brake fluid; therefore, the novel automobile brake fluid prepared by the invention has the advantages of good stability, corrosion resistance, higher boiling point, proper high-temperature viscosity and good low-temperature fluidity.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A preparation method of novel automobile brake fluid comprises the following steps:
s1, uniformly mixing isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate to prepare the lipophilic composite modifier, wherein the weight part ratio of isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate is 1:1.5: 0.7;
s2, adding 22 parts of diethylene glycol, 18 parts of ethylene glycol, 11 parts of polyethylene glycol borate, 14 parts of propylene glycol monomethyl ether borate, 13 parts of butyl carbitol and 8 parts of butyl carbitol into a reaction container, stirring and heating;
s3, keeping the temperature until the temperature rises to 80 ℃, keeping the temperature, continuing to stir for 25 minutes, sequentially adding 3 parts of lipophilic composite modifier, 1.5 parts of 2, 6-di-tert-butyl-p-cresol and 1.6 parts of tartaric acid, stirring for 10 minutes, then adding 2 parts of triethanolamine, and continuing to stir for 8 minutes;
and S4, filtering through a 0.1um filter, and subpackaging to obtain the novel automobile brake fluid.
Example 2
A preparation method of novel automobile brake fluid comprises the following steps:
s1, uniformly mixing isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate to prepare the lipophilic composite modifier, wherein the weight part ratio of isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate is 1:1.5: 0.7;
s2, adding 22 parts of diethylene glycol, 18 parts of ethylene glycol, 11 parts of polyethylene glycol borate, 14 parts of propylene glycol monomethyl ether borate, 13 parts of butyl carbitol and 8 parts of butyl carbitol into a reaction container, stirring and heating;
s3, keeping the temperature until the temperature rises to 80 ℃, keeping the temperature, continuing to stir for 25 minutes, sequentially adding 4 parts of lipophilic composite modifier, 1.5 parts of 2, 6-di-tert-butyl-p-cresol and 1.6 parts of tartaric acid, stirring for 10 minutes, then adding 2 parts of triethanolamine, and continuing to stir for 8 minutes;
and S4, filtering through a 0.1um filter, and subpackaging to obtain the novel automobile brake fluid.
Example 3
A preparation method of novel automobile brake fluid comprises the following steps:
s1, uniformly mixing isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate to prepare the lipophilic composite modifier, wherein the weight part ratio of isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate is 1:1.5: 0.7;
s2, adding 22 parts of diethylene glycol, 18 parts of ethylene glycol, 11 parts of polyethylene glycol borate, 14 parts of propylene glycol monomethyl ether borate, 13 parts of butyl carbitol and 8 parts of butyl carbitol into a reaction container, stirring and heating;
s3, keeping the temperature until the temperature rises to 80 ℃, keeping the temperature, continuing to stir for 25 minutes, sequentially adding 5 parts of lipophilic composite modifier, 1.5 parts of 2, 6-di-tert-butyl-p-cresol and 1.6 parts of tartaric acid, stirring for 10 minutes, then adding 2 parts of triethanolamine, and continuing to stir for 8 minutes;
and S4, filtering through a 0.1um filter, and subpackaging to obtain the novel automobile brake fluid.
Example 4
A preparation method of novel automobile brake fluid comprises the following steps:
s1, uniformly mixing isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate to prepare the lipophilic composite modifier, wherein the weight part ratio of isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate is 1:1.5: 0.7;
s2, adding 22 parts of diethylene glycol, 18 parts of ethylene glycol, 11 parts of polyethylene glycol borate, 14 parts of propylene glycol monomethyl ether borate, 13 parts of butyl carbitol and 8 parts of butyl carbitol into a reaction container, stirring and heating;
s3, keeping the temperature until the temperature rises to 80 ℃, keeping the temperature, continuing to stir for 25 minutes, sequentially adding 6 parts of lipophilic composite modifier, 1.5 parts of 2, 6-di-tert-butyl-p-cresol and 1.6 parts of tartaric acid, stirring for 10 minutes, then adding 2 parts of triethanolamine, and continuing to stir for 8 minutes;
and S4, filtering through a 0.1um filter, and subpackaging to obtain the novel automobile brake fluid.
Comparative example 1
A preparation method of novel automobile brake fluid comprises the following steps:
s1, adding 22 parts of diethylene glycol, 18 parts of ethylene glycol, 11 parts of polyethylene glycol borate, 14 parts of propylene glycol monomethyl ether borate, 13 parts of butyl carbitol and 8 parts of butyl carbitol into a reaction container, stirring and heating;
s2, keeping the temperature until the temperature rises to 80 ℃, keeping the temperature, continuing to stir for 25 minutes, sequentially adding 1.5 parts of 2, 6-di-tert-butyl-p-cresol and 1.6 parts of tartaric acid into the mixture, stirring for 10 minutes, then adding 2 parts of triethanolamine into the mixture, and continuing to stir for 8 minutes;
and S3, filtering through a 0.1um filter, and subpackaging to obtain the novel automobile brake fluid.
Comparative example 2
A preparation method of novel automobile brake fluid comprises the following steps:
s1, uniformly mixing isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate to prepare the lipophilic composite modifier, wherein the weight part ratio of isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate is 1:1.5: 0.7;
s2, adding 22 parts of diethylene glycol, 18 parts of ethylene glycol, 11 parts of polyethylene glycol borate, 14 parts of propylene glycol monomethyl ether borate, 13 parts of butyl carbitol and 8 parts of butyl carbitol into a reaction container, stirring and heating;
s3, keeping the temperature and continuing to stir for 25 minutes until the temperature rises to 80 ℃, then sequentially adding 4 parts of lipophilic composite modifier and 1.5 parts of 2, 6-di-tert-butyl-p-cresol, stirring for 10 minutes, then adding 2 parts of triethanolamine, and continuing to stir for 8 minutes;
and S4, filtering through a 0.1um filter, and subpackaging to obtain the novel automobile brake fluid.
And (3) performance testing:
the novel automobile brake fluids prepared in examples 1 to 4 and comparative examples 1 to 2 were subjected to performance tests, specifically, stability of the novel automobile brake fluids was tested using 48-hour standing; the novel automobile brake fluid corrosion test method is characterized in that GB12981 is adopted to test the cast iron corrosion of the novel automobile brake fluid, SH/T0430 is adopted to test the equilibrium reflux boiling point of the novel automobile brake fluid, GB12981 is adopted to test the wet boiling point of the novel automobile brake fluid, GB/T265 is adopted to test the-40 ℃ kinematic viscosity of the novel automobile brake fluid, and the test results are shown in Table 1.
TABLE 1 test results of novel automobile brake fluids prepared in examples 1 to 4 and comparative examples 1 to 2
As can be seen from the test results in Table 1, the lipophilic composite modifier in the embodiments 1-4 of the invention can make the novel brake fluid more uniform and stable, and is not easy to generate separation or precipitation phenomenon in the using process, and the frost resistance and impermeability are good; in addition, the polybasic organic acid added in the invention can be used as a stabilizer, and the stabilizer can improve the heat resistance, the cold resistance and the corrosion resistance of the brake fluid; since comparative example 1 is not added with the lipophilic composite modifier and comparative example 2 is not added with the polybasic organic acid, the brake fluid prepared by the method has poorer performance than the novel automobile brake fluid prepared by examples 1-4; therefore, the novel automobile brake fluid prepared by the invention has the advantages of good stability, corrosion resistance, higher boiling point, proper high-temperature viscosity and good low-temperature fluidity.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The novel automobile brake fluid is characterized by comprising the following components in parts by weight: 18-25 parts of diethylene glycol, 12-22 parts of ethylene glycol, 8-30 parts of borate, 11-15 parts of butyl carbitol, 7-9 parts of butyl carbitol, 3-6 parts of lipophilic composite modifier, 0.5-2 parts of antioxidant, 1-4 parts of pH regulator and 0.8-2.5 parts of polybasic organic acid.
2. The novel brake fluid for automobiles according to claim 1, wherein: the lipophilic composite modifier is prepared by mixing isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate according to the proportion of 1:1.5: 0.7.
3. The novel brake fluid for automobiles according to claim 1, wherein: the borate is one of polyethylene glycol borate, propylene glycol monomethyl ether borate or a mixture thereof.
4. The novel brake fluid for automobiles according to claim 1, wherein: the antioxidant is one of 2, 6-di-tert-butyl-p-cresol, bisphenol A, 4-methyl-2, 6-di-tert-butylphenol and the like.
5. The novel brake fluid for automobiles according to claim 1, wherein: the pH regulator is triethanolamine.
6. The novel brake fluid for automobiles according to claim 1, wherein: the polybasic organic acid is one or a mixture of tartaric acid, nicotinic acid or lactic acid.
7. A method for preparing a novel brake fluid for automobiles according to any one of claims 1 to 6, comprising the steps of:
s1, uniformly mixing isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate to prepare the lipophilic composite modifier, wherein the weight part ratio of isomeric tridecanol polyoxyethylene ether, nonylphenol polyoxyethylene ether and monolauryl phosphate is 1:1.5: 0.7;
s2, adding 18-25 parts of diethylene glycol, 12-22 parts of ethylene glycol, 8-30 parts of borate, 11-15 parts of butyl carbitol and 7-9 parts of butyl carbitol into a reaction container, stirring and heating;
s3, keeping the temperature until the temperature rises to 75-85 ℃, keeping the temperature, continuing to stir for 15-30 minutes, sequentially adding 3-6 parts of lipophilic composite modifier, 0.5-2 parts of antioxidant and 0.8-2.5 parts of polybasic organic acid, stirring for 8-12 minutes, then adding 1-4 parts of pH regulator, and continuing to stir for 5-10 minutes;
and S4, filtering through a 0.1um filter, and subpackaging to obtain the novel automobile brake fluid.
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