A highly lubricating rust-preventive emulsified oil and its preparation method

Abstract

This application relates to the field of cutting fluids, and more particularly to a high-lubricating rust-preventing emulsified oil and its preparation method. A high-lubricating rust-preventing emulsified oil comprises the following components by weight: 80-90 parts base oil; 5-15 parts emulsifier; 3-5 parts lubricating rust inhibitor; and 1-3 parts stabilizer. The lubricating rust inhibitor comprises carbon aerogel particles prepared by molybdate doping. This application uses molybdate for doping because molybdate forms a passivation film on the metal surface after cutting, thereby isolating the metal surface substrate from contact with the external environment and effectively inhibiting corrosion. Secondly, the simple addition of molybdate to the cutting fluid easily leads to uneven dispersion. This application improves its dispersion uniformity by doping it into the carbon aerogel particles. Simultaneously, the carbon aerogel particles have good lubricating properties, effectively improving the cutting and rust-preventing effect while further enhancing the lubricating performance of the emulsified oil.

Description

Technical Field

[0001] This application relates to the field of cutting fluids, and in particular to a highly lubricating rust-preventive emulsified oil and its preparation method. Background Technology

[0002] During metal cutting, the intense friction between the workpiece and the cutting tool generates significant heat on their contact surfaces. Furthermore, numerous chips are typically produced during the cutting process. Therefore, proper cooling, lubrication, and cleaning of the machine tool and workpiece—that is, selecting a suitable cutting fluid—is of paramount importance in the metal cutting process.

[0003] Rust-preventive emulsified oil is a combination of base oil, rust inhibitor, emulsifier, and other functional additives.

[0004] It is made of metalworking fluid and is widely used in the metal processing industry. It can be used for general load processing such as grinding, turning and milling. It has good lubrication, rust prevention, cooling and cleaning properties, and is one of the most widely used metalworking fluid products.

[0005] Regarding the aforementioned technologies, the inventors discovered that existing rust-preventive emulsified oils, due to the addition of lubricating and rust-preventing materials, have improved lubrication and rust prevention properties. However, the lubricating and rust-preventing materials have poor dispersion properties in the emulsified oil, resulting in poor stability of the high-lubricity rust-preventive emulsified oil and a significant reduction in its lubrication and rust prevention effects. Summary of the Invention

[0006] In order to improve the poor stability of existing high-lubricating rust-preventing emulsified oils, this application provides a high-lubricating rust-preventing emulsified oil and its preparation method.

[0007] This application provides a highly lubricating rust-preventive emulsified oil, employing the following technical solution:

[0008] A highly lubricating rust-preventive emulsified oil comprises the following substances in parts by weight:

[0009] 80-90 parts base oil;

[0010] 5-15 parts emulsifier;

[0011] 3-5 parts of lubricant and rust inhibitor;

[0012] Stabilizer 1-3 parts;

[0013] The lubricant and rust inhibitor comprises carbon aerogel particles prepared by molybdate doping.

[0014] Through the above technical solution, this application selects molybdate for doping. Since molybdate forms a passivation film on the metal surface after cutting, it isolates the cutting metal surface substrate from contact with the external environment, thereby effectively inhibiting the corrosion process.

[0015] Secondly, the addition of simple molybdate to cutting fluid can easily lead to uneven dispersion. This application improves the dispersion uniformity by incorporating it into carbon aerogel particles. At the same time, carbon aerogel particles have good lubrication properties, which not only effectively improves the cutting and rust prevention effect, but also further enhances the lubrication performance of emulsified oil.

[0016] Preferably, the carbon aerogel particles prepared by molybdate doping are made using the following method:

[0017] Add resorcinol to formaldehyde solution, stir and mix, then add deionized water, boric acid and melamine, stir and mix, and collect the mixture.

[0018] Graphene oxide and molybdate were added to a mixture, dispersed by ultrasound, heated to react, and dried to prepare an aerogel intermediate.

[0019] The aerogel intermediate is placed in a carbonization furnace, heated to a programmed temperature, and then carbonized by holding at the temperature. After grinding, crushing, and sieving, the carbon aerogel particles prepared by molybdate doping can be obtained.

[0020] Through the above technical solution, this application further optimizes the preparation process of carbon aerogel particles prepared by molybdate doping. By further doping with graphene oxide, the aerogel material has a good pore structure and specific surface area, which can improve the contact area between the lubricant and the metal surface matrix during use, thereby further improving the lubrication and rust prevention effect of the lubricant and rust inhibitor.

[0021] Preferably, the lubricating rust inhibitor is also doped with a high lubricity modifier.

[0022] Preferably, the high lubricity modifier is prepared using the following method:

[0023] Aluminum nitrate and magnesium nitrate were mixed, ammonia was added, and the mixture was kept warm under a nitrogen atmosphere. After washing and drying, the reactants were collected.

[0024] The high lubricity modifier is prepared by mixing the reactants with ammonium tetrathiomolybdate, reacting under a nitrogen atmosphere, filtering, washing and drying, and then calcining under an inert atmosphere.

[0025] Through the above technical solution, this application forms a composite structure of molybdenum disulfide and layered hydroxide. On the one hand, molybdenum disulfide alone has poor dispersion performance in emulsified oil, while layered hydroxide can be effectively dispersed in emulsified oil. By using layered hydroxide as a loading matrix, the dispersion performance of molybdenum disulfide can be effectively improved. On the other hand, the surface of layered hydroxide particles is positively charged, which makes it easy to adsorb some negatively charged molybdenum disulfide nanoparticles to form a composite material with better lubrication performance. Therefore, the high lubricity modifier prepared in this application further improves the lubricity and dispersion performance of the lubricating rust inhibitor.

[0026] Secondly, this application provides a method for preparing a highly lubricating rust-preventive emulsified oil, comprising the following preparation steps:

[0027] First, mix the base oil and lubricant / rust inhibitor, and collect the initial mixture.

[0028] Then take the emulsifier and stabilizer, stir and mix them, and collect the secondary mixture;

[0029] The high rust-preventive and protective cutting fluid can be prepared by mixing the initial mixture with the secondary mixture and then subjecting it to ultrasonic oscillation.

[0030] Through the above technical solution, this application first improves the stability of the emulsion formed by the prepared emulsified oil by mixing the components of the raw materials multiple times, thereby further improving the dispersion stability of the emulsified oil.

[0031] Preferably, the dispersion process includes the following steps:

[0032] Add the lubricating and rust-inhibiting agent to the dispersion modification liquid, mix it with magnetic stirring, then disperse it with ultrasonication, and let it stand to complete the dispersion treatment step.

[0033] Preferably, the dispersant modifier comprises an oleic acid-anhydrous ethanol mixture.

[0034] Through the above technical solution, the present application modifies the lubricant and rust inhibitor with oleic acid. When the lubricant and rust inhibitor are modified with oleic acid, their long alkane chains produce a typical steric hindrance effect. The steric hindrance can overcome the surface force of nanoparticles and prevent the lubricant and rust inhibitor particles from agglomerating and settling, thereby further improving the dispersion stability of the high rust-preventive and protective cutting fluid.

[0035] In summary, this application has the following beneficial effects:

[0036] First, this application uses molybdate for doping. Since molybdate forms a passivation film on the metal surface after cutting, it isolates the substrate of the cut metal surface from contact with the external environment, thereby effectively inhibiting the corrosion process.

[0037] Secondly, the addition of simple molybdate to cutting fluid can easily lead to uneven dispersion. This application improves the dispersion uniformity by incorporating it into carbon aerogel particles. At the same time, carbon aerogel particles have good lubrication properties, which not only effectively improves the cutting and rust prevention effect, but also further enhances the lubrication performance of emulsified oil.

[0038] Secondly, this application further optimizes the preparation process of carbon aerogel particles prepared by molybdate doping. By further doping with graphene oxide, the aerogel material has a good pore structure and specific surface area, which can improve the contact area between the lubricant and the metal surface matrix during use, thereby further improving the lubrication and rust prevention effect of the lubricant.

[0039] Third, this application forms a composite structure by combining molybdenum disulfide with layered hydroxides. On the one hand, molybdenum disulfide alone has poor dispersion performance in emulsified oil, while layered hydroxides can be effectively dispersed in emulsified oil. By using layered hydroxides as a supporting matrix, the dispersion performance of molybdenum disulfide can be effectively improved. On the other hand, the surface of layered hydroxide particles is positively charged, which makes it easy to adsorb some negatively charged molybdenum disulfide nanoparticles to form a composite material with better lubrication performance. Therefore, the high lubricity modifier prepared in this application further improves the lubricity and dispersion performance of the lubricating rust inhibitor. Detailed Implementation

[0040] To further understand the present invention, preferred embodiments of the present invention are described below in conjunction with examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, and not for limiting the scope of the claims.

[0041] There are no particular restrictions on the source of any raw materials used in this invention; they can be purchased from the market or prepared using conventional methods known to those skilled in the art.

[0042] All raw materials of this invention are conventional in the field, and each brand name and abbreviation is clear and distinct in its relevant application. Those skilled in the art can purchase them from the market or prepare them by conventional methods based on the brand name, abbreviation and corresponding application.

[0043] All processes in this invention are referred to by abbreviations that are common abbreviations in the field. Each abbreviation is clear and specific in its relevant application area, and those skilled in the art can understand its conventional process steps based on the abbreviation.

[0044] Preparation Example

[0045] Preparation Example 1: Lubricant and Rust Inhibitor 1

[0046] Add 100g of resorcinol to 200g of 30% formaldehyde solution, stir and mix, then add 2500mL of deionized water, 120g of boric acid and 40g of melamine, stir and mix to obtain the mixture.

[0047] 15g of graphene oxide and 6g of sodium molybdate were added to the mixture, ultrasonically dispersed at 200W, heated to 90℃, kept at the temperature for 48h, and then dried at 90℃ for 48h to prepare the aerogel intermediate.

[0048] Take the aerogel intermediate and place it in a carbonization furnace. Heat it to 500℃ at a rate of 5℃ / min and carbonize it for 3 hours. Grind and pulverize the mixture and sieve it to prepare the lubricating and rust-inhibiting agent 1.

[0049] Preparation Example 2: Lubricant and Rust Inhibitor 2

[0050] Add 110g of resorcinol to 225g of 30% formaldehyde solution, stir and mix, then add 2750mL of deionized water, 135g of boric acid and 42g of melamine, stir and mix to obtain the mixture.

[0051] 17g of graphene oxide and 7g of sodium molybdate were added to the mixture, ultrasonically dispersed at 200W, heated to 90℃, kept at this temperature for 48h, and then dried at 90℃ for 48h to prepare the aerogel intermediate.

[0052] Take the aerogel intermediate and place it in a carbonization furnace. Heat it to 500℃ at a rate of 5℃ / min and carbonize it for 3 hours. Grind and pulverize the product and sieve it to prepare the lubricating and rust-inhibiting agent 2.

[0053] Preparation Example 3: Lubricant and Rust Inhibitor 3

[0054] Add 120g of resorcinol to 250g of 30% formaldehyde solution, stir and mix, then add 3000mL of deionized water, 150g of boric acid and 45g of melamine, stir and mix to obtain the mixture.

[0055] 20g of graphene oxide and 6-8g of sodium molybdate were added to the mixture, ultrasonically dispersed at 200W, heated to 90℃, kept at the temperature for 48h, and then dried at 90℃ for 48h to prepare the aerogel intermediate.

[0056] Take the aerogel intermediate and place it in a carbonization furnace. Heat it to 500℃ at a rate of 5℃ / min and carbonize it for 3 hours. Grind, crush and sieve to prepare the lubricating and rust-inhibiting agent 3.

[0057] Preparation Example 4: High Lubricity Modifier 1

[0058] Take 100g of aluminum nitrate and 200g of magnesium nitrate, mix them and place them in 1000mL of water. Then add 800mL of 10% ammonia water and purge the pores with nitrogen gas. React at room temperature under a nitrogen atmosphere for 6 hours. Filter the mixture, take the filter cake and wash it with deionized water. Dry it in an oven at 45℃ and collect the reactants.

[0059] Take 20g of reactant and 30g of ammonium tetrathiomolybdate, mix them in 5000g of deionized water, and then keep the mixture at room temperature under nitrogen atmosphere for 6h. Filter the mixture, take the filter cake and wash it with deionized water. Dry it in an oven at 45℃ and then calcine it at 500℃ for 2h under an inert atmosphere to prepare the high lubricity modifier 1.

[0060] Preparation Example 5: High Lubricity Modifier 2

[0061] Take 120g of aluminum nitrate and 240g of magnesium nitrate, mix them and place them in 1500mL of water. Then add 900mL of 10% ammonia water and purge the pores with nitrogen gas. React at room temperature under a nitrogen atmosphere for 6 hours. Filter the mixture, take the filter cake and wash it with deionized water. Dry it in an oven at 45℃ and collect the reactants.

[0062] Take 22g of reactant and 35g of ammonium tetrathiomolybdate and mix them in 6000g of deionized water. Then, keep the mixture warm under a nitrogen atmosphere and react at room temperature for 6 hours. Filter the mixture, take the filter cake and wash it with deionized water. Dry it in an oven at 45℃ and then calcine it at 500℃ for 2 hours under an inert atmosphere to prepare the high lubricity modifier 2.

[0063] Preparation Example 6: High Lubricity Modifier 3

[0064] Take 150g of aluminum nitrate and 300g of magnesium nitrate, mix them and place them in 2000mL of water. Then add 1000mL of 10% ammonia water and purge the pores with nitrogen gas. React at room temperature under nitrogen atmosphere for 6 hours. Filter the mixture, take the filter cake and wash it with deionized water. Dry it in an oven at 45℃ and collect the reactants.

[0065] Take 25g of reactant and 40g of ammonium tetrathiomolybdate and mix them in 6600g of deionized water. Then, keep the mixture warm under a nitrogen atmosphere and react at room temperature for 6 hours. Filter the mixture, take the filter cake and wash it with deionized water. Dry it in an oven at 45℃ and then calcine it at 500℃ for 2 hours under an inert atmosphere to prepare the high lubricity modifier 3.

[0066] Preparation Example 7

[0067] Take 200g of lubricating rust inhibitor 1 and 20g of high lubricity modifier 1, mix them, and ultrasonically disperse for 20min to prepare lubricating rust inhibitor 4.

[0068] Preparation Example 8

[0069] Take 200g of lubricating rust inhibitor 2 and 20g of high lubricity modifier 1, mix them, and ultrasonically disperse for 20min to prepare lubricating rust inhibitor 5.

[0070] Preparation Example 9

[0071] Take 200g of lubricating rust inhibitor 3 and 20g of high lubricity modifier 1, mix them, and ultrasonically disperse for 20min to prepare lubricating rust inhibitor 6.

[0072] Preparation Example 10

[0073] Emulsifiers were prepared by mixing Tween, Span and sodium petroleum sulfonate, and adjusting the HLB value of the mixture to 11.

[0074] Example

[0075] Example 1

[0076] A highly lubricating rust-preventive emulsified oil comprises the following substances: 80 kg base oil, 5 kg emulsifier, 3 kg lubricating rust inhibitor, and 1 kg stabilizer triethanolamine.

[0077] A method for preparing a highly lubricating rust-preventive emulsified oil includes the following preparation steps:

[0078] First, mix the base oil and lubricant / rust inhibitor, and collect the initial mixture.

[0079] Then take the emulsifier and stabilizer, stir and mix them, and collect the secondary mixture;

[0080] The high rust-preventive and protective cutting fluid can be prepared by mixing the initial mixture with the secondary mixture and then subjecting it to ultrasonic oscillation.

[0081] Example 2

[0082] A highly lubricating rust-preventive emulsified oil comprises the following substances: 85 kg base oil, 10 kg emulsifier, 4 kg lubricating rust inhibitor, and 1 kg triethanolamine stabilizer.

[0083] A method for preparing a highly lubricating rust-preventive emulsified oil includes the following preparation steps:

[0084] First, mix the base oil and lubricant / rust inhibitor, and collect the initial mixture.

[0085] Then take the emulsifier and stabilizer, stir and mix them, and collect the secondary mixture;

[0086] The high rust-preventive and protective cutting fluid can be prepared by mixing the initial mixture with the secondary mixture and then subjecting it to ultrasonic oscillation.

[0087] Example 3

[0088] A highly lubricating rust-preventive emulsified oil comprises the following substances: 90 kg base oil, 15 kg emulsifier, 5 kg lubricating rust inhibitor, and 3 kg stabilizer triethanolamine.

[0089] A method for preparing a highly lubricating rust-preventive emulsified oil includes the following preparation steps:

[0090] First, mix the base oil and lubricant / rust inhibitor, and collect the initial mixture.

[0091] Then take the emulsifier and stabilizer, stir and mix them, and collect the secondary mixture;

[0092] The high rust-preventive and protective cutting fluid can be prepared by mixing the initial mixture with the secondary mixture and then subjecting it to ultrasonic oscillation.

[0093] Example 4

[0094] A highly lubricating rust-preventive emulsified oil comprises the following substances: 80 kg base oil, 5 kg emulsifier, 3 kg lubricating rust inhibitor, and 1 kg stabilizer triethanolamine.

[0095] A method for preparing a highly lubricating rust-preventive emulsified oil includes the following preparation steps:

[0096] First, mix the base oil and lubricant / rust inhibitor, and collect the initial mixture.

[0097] Then take the emulsifier and stabilizer, stir and mix them, and collect the secondary mixture;

[0098] The high rust-preventive and protective cutting fluid can be prepared by mixing the initial mixture with the secondary mixture and then subjecting it to ultrasonic oscillation.

[0099] Example 5

[0100] A highly lubricating rust-preventive emulsified oil comprises the following substances: 80 kg base oil, 5 kg emulsifier, 3 kg lubricating rust inhibitor, and 1 kg stabilizer triethanolamine.

[0101] A method for preparing a highly lubricating rust-preventive emulsified oil includes the following preparation steps:

[0102] First, mix the base oil and lubricant / rust inhibitor, and collect the initial mixture.

[0103] Then take the emulsifier and stabilizer, stir and mix them, and collect the secondary mixture;

[0104] The high rust-preventive and protective cutting fluid can be prepared by mixing the initial mixture with the secondary mixture and then subjecting it to ultrasonic oscillation.

[0105] Example 6

[0106] A highly lubricating rust-preventive emulsified oil comprises the following substances: 80 kg base oil, 5 kg emulsifier, 3 kg lubricating rust inhibitor, and 1 kg stabilizer triethanolamine.

[0107] A method for preparing a highly lubricating rust-preventive emulsified oil includes the following preparation steps:

[0108] First, mix the base oil and lubricant / rust inhibitor, and collect the initial mixture.

[0109] Then take the emulsifier and stabilizer, stir and mix them, and collect the secondary mixture;

[0110] The high rust-preventive and protective cutting fluid can be prepared by mixing the initial mixture with the secondary mixture and then subjecting it to ultrasonic oscillation.

[0111] Example 7

[0112] A highly lubricating rust-preventive emulsified oil comprises the following substances: 80 kg base oil, 5 kg emulsifier, 3 kg lubricating rust inhibitor, and 1 kg stabilizer triethanolamine.

[0113] A method for preparing a highly lubricating rust-preventive emulsified oil includes the following preparation steps:

[0114] First, mix the base oil and lubricant / rust inhibitor, and collect the initial mixture.

[0115] Then take the emulsifier and stabilizer, stir and mix them, and collect the secondary mixture;

[0116] The high rust-preventive and protective cutting fluid can be prepared by mixing the initial mixture with the secondary mixture and then subjecting it to ultrasonic oscillation.

[0117] Example 8

[0118] A highly lubricating rust-preventive emulsified oil comprises the following substances: 80 kg base oil, 5 kg emulsifier, 3 kg lubricating rust inhibitor, and 1 kg stabilizer triethanolamine.

[0119] A method for preparing a highly lubricating rust-preventive emulsified oil includes the following preparation steps:

[0120] First, mix the base oil and lubricant / rust inhibitor, and collect the initial mixture.

[0121] Then take the emulsifier and stabilizer, stir and mix them, and collect the secondary mixture;

[0122] The high rust-preventive and protective cutting fluid can be prepared by mixing the initial mixture with the secondary mixture and then subjecting it to ultrasonic oscillation.

[0123] Example 9

[0124] A highly lubricating rust-preventive emulsified oil comprises the following substances: 80 kg base oil, 5 kg emulsifier, 3 kg lubricating rust inhibitor, and 1 kg stabilizer triethanolamine.

[0125] A method for preparing a highly lubricating rust-preventive emulsified oil includes the following preparation steps:

[0126] Take 200g of lubricating rust inhibitor 6 and add it to 1500g of 10% oleic acid-anhydrous ethanol mixture. After stirring magnetically at 300r / min, it is then ultrasonically dispersed and mixed at 200W. After standing, the dispersion-modified lubricating rust inhibitor 6 is prepared.

[0127] First, mix the base oil and the dispersing lubricant and rust inhibitor 6, and collect the initial mixture;

[0128] Then take the emulsifier and stabilizer, stir and mix them, and collect the secondary mixture;

[0129] The high rust-preventive and protective cutting fluid can be prepared by mixing the initial mixture with the secondary mixture and then subjecting it to ultrasonic oscillation.

[0130] Comparative Example

[0131] Comparative Example 1

[0132] Compared with Example 1, the lubricant and rust inhibitor in Comparative Example 1 uses graphene particles of equal mass.

[0133] Comparative Example 2

[0134] Compared with Example 1, the lubricant and rust inhibitor in Comparative Example 1 uses sodium molybdate particles of equal mass.

[0135] Performance testing

[0136] The emulsified oils prepared by the technical solutions of Examples 1-9 and Comparative Examples 1-2 were subjected to performance tests, and the specific characterization schemes were based on the following standards:

[0137] Stability: Add 50 mL of deionized water to a 100 mL graduated cylinder, then add 5 mL of emulsified oil, and then add water to 100 mL. Seal the cylinder with plastic wrap, shake vigorously until fully mixed, and let stand for 24 hours. Observe the separation of the emulsion.

[0138] Lubricity: The lubricity of the emulsified oil was investigated using the SRV-4 multi-functional friction and wear testing machine, focusing on the coefficient of friction. The test results are shown in Table 1.

[0139] Table 1 Performance Test Table

[0140]

[0141]

[0142] Analysis of the data in Table 1, and comparison of Examples 1-3 and Comparative Examples 1-2, illustrates that the technical solution of this application uses molybdate for doping into the interior of carbon aerogel particles to improve their dispersion uniformity. At the same time, the carbon aerogel particles have good lubrication properties, which not only effectively improves their cutting and rust prevention effects, but also further enhances the lubrication performance of the emulsified oil.

[0143] A comparison of Examples 4-5 and Examples 6-8 further illustrates that this application, by forming a composite structure of molybdenum disulfide and layered hydroxide, achieves several advantages. Firstly, molybdenum disulfide alone exhibits poor dispersion performance in emulsified oil, while layered hydroxide can be effectively dispersed in emulsified oil. By using layered hydroxide as a supporting matrix, the dispersion performance of molybdenum disulfide can be effectively improved. Secondly, the positively charged surface of layered hydroxide particles makes it easy to adsorb some negatively charged molybdenum disulfide nanoparticles, forming a corresponding composite material with better lubrication performance. Therefore, the high-lubricity modifier prepared in this application further improves the lubricity and dispersion performance of the lubricating rust inhibitor.

[0144] Finally, in conjunction with Example 9 and the data in Table 1, it can be seen that the oleic acid used in this application modifies the lubricating rust inhibitor. When the lubricating rust inhibitor is modified by oleic acid, its long alkane chain produces a typical steric hindrance effect. The steric hindrance can overcome the surface force of nanoparticles and prevent the lubricating rust inhibitor particles from agglomerating and settling, thereby further improving the dispersion stability of the high rust-preventing and protective cutting fluid.

[0145] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A lubricating and rust-preventive emulsified oil, characterized in that, Includes the following substances by weight: 80-90 parts base oil; 5-15 parts emulsifier; 3-5 parts of lubricant and rust inhibitor; Stabilizer 1-3 parts; The stabilizer is triethanolamine; The lubricating and rust-inhibiting agent includes carbon aerogel particles prepared by molybdate doping; The lubricating rust inhibitor also contains a high-lubricity modifier; the high-lubricity modifier is prepared using the following method: Aluminum nitrate and magnesium nitrate were mixed, ammonia was added, and the mixture was kept warm under a nitrogen atmosphere. After washing and drying, the reactants were collected. The reactants are mixed with ammonium tetrathiomolybdate, and then reacted under a nitrogen atmosphere. After filtration, washing, and drying, the mixture is calcined under an inert atmosphere to prepare the high-lubricity modifier. The carbon aerogel particles prepared by molybdate doping are made using the following method: Add resorcinol to formaldehyde solution, stir and mix, then add deionized water, boric acid and melamine, stir and mix, and collect the mixture. Graphene oxide and molybdate were added to a mixture, dispersed by ultrasound, heated to react, and dried to prepare an aerogel intermediate. The aerogel intermediate is placed in a carbonization furnace, heated to a programmed temperature, and then carbonized by holding at the temperature. After grinding, crushing, and sieving, the carbon aerogel particles prepared by molybdate doping can be obtained.

2. The method for preparing a lubricating and rust-preventive emulsified oil according to claim 1, characterized in that, The preparation steps include the following: First, mix the base oil and lubricant / rust inhibitor, and collect the initial mixture. Then take the emulsifier and stabilizer, stir and mix them, and collect the secondary mixture; The lubricating rust-preventive emulsion oil can be prepared by mixing the initial mixture with the secondary mixture and then subjecting it to ultrasonic oscillation.

3. The method for preparing a lubricating and rust-preventive emulsified oil according to claim 2, characterized in that, The lubricating and rust-inhibiting agent further includes a dispersion treatment, which comprises the following steps: Add the lubricating and rust-inhibiting agent to the dispersion modification liquid, mix it with magnetic stirring, then disperse it with ultrasonication, and let it stand to complete the dispersion treatment step.

4. The method for preparing a lubricating and rust-preventive emulsified oil according to claim 3, characterized in that, The dispersion modification solution includes an oleic acid-anhydrous ethanol mixture.

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