CN114836251A - Flame-retardant hydraulic fluid composition and preparation method thereof - Google Patents
Flame-retardant hydraulic fluid composition and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/08—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic sulfur-, selenium- or tellurium-containing compound
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/087—Boron oxides, acids or salts
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
- C10M2207/2835—Esters of polyhydroxy compounds used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/102—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon only in the ring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
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Abstract
The invention provides a flame-retardant hydraulic fluid composition and a preparation method thereof, the flame-retardant hydraulic fluid composition comprises an extreme pressure lubricant, an antioxidant, a metal passivator and fatty acid ester base oil, wherein the extreme pressure lubricant is nano boric acid particles, and the particle size of the nano boric acid is 10-100 nm. According to the invention, the nano boric acid particles are used as an extreme pressure lubricant of the fatty acid ester type flame-retardant hydraulic fluid, and the choline lipoic acid ionic liquid is used as a lubricant, an antioxidant and an antirust agent of an oil product, so that the extreme pressure lubricating oil has better extreme pressure lubricating property, excellent lubricating durability and longer service life, does not contain toxic and harmful additive components such as chlorine, phosphorus and the like, is difficult to degrade, and is environment-friendly.
Description
Technical Field
The invention relates to a lubricating oil composition, in particular to a flame-retardant hydraulic fluid composition and a preparation method thereof.
Background
Hydraulic fluids are the vehicle for power transmission in hydraulic transmission systems and must be flame retardant under special conditions of use (e.g., near high temperatures or open flames) in order to prevent accidents that can occur if the hydraulic fluid leaks from valves, pumps, lines, etc. during use. The use of fatty acid esters as an anti-flaming liquid is the latest development of anti-flaming liquid, and after 90 s with the introduction of foreign advanced hydraulic equipment, fatty acid ester liquid (HFDU type flame-retardant liquid) began to enter the domestic market. Compared with water-glycol flame-retardant hydraulic fluid (HFC type flame-retardant hydraulic fluid), the fatty acid ester has excellent lubricity, high and low temperature stability and biodegradability. Compared with phosphate ester fire-retardant hydraulic fluid (HFDR type fire-retardant hydraulic fluid), the phosphate ester fire-retardant hydraulic fluid has low toxicity, and has gradually replaced water-glycol fire-retardant hydraulic fluid (HFC type fire-retardant hydraulic fluid) and phosphate ester fire-retardant hydraulic fluid (HFDR type fire-retardant hydraulic fluid) to be widely applied to hydraulic systems of continuous casting lines, quenching hydraulic systems in machinery industry and hydraulic systems of conveyors in steel mills.
With the rapid development of hydraulic system technology and industrial manufacturing technology, the load and temperature of a hydraulic system using a fire-retardant liquid are higher and higher, and the requirement on the fire-retardant hydraulic liquid is higher and higher. On one hand, the fire-retardant liquid is required to have good high-temperature lubricity, and the temperature of part of the hydraulic oil tank is up to 90-100 ℃; on the other hand, the biodegradable polyurethane has long service life and good biodegradability. However, base oil, lubricant, extreme pressure agent and the like in the flame-retardant liquid are easy to decompose and have chemical reaction at high temperature to produce micromolecular acidic substances, so that the lubrication of the oil product at high temperature is ineffective, and the service life of the oil product is greatly shortened. Patent CN 105001946B "ester type flame-retardant hydraulic oil and its production method" uses saturated oleic acid polyol ester as base oil to improve its oxidation resistance. The patent CN109233953A 'an anti-combustion degradation environment-friendly hydraulic oil' uses four-arm PEG sulfydryl to be compounded with other additives, so that the product has excellent lubricity, high and low temperature stability and outstanding biodegradability; good air release, rubber adaptability and complete compatibility with mineral oil.
The environment-friendly flame-retardant liquid can provide stable and durable lubricating performance at high temperature, has long service life of oil products, and is a technical problem to be solved urgently in the field.
Disclosure of Invention
The invention mainly aims to provide a flame-retardant hydraulic fluid composition and a preparation method thereof.
In order to achieve the purpose, the invention provides a flame-retardant hydraulic fluid composition which comprises an extreme pressure lubricant, an antioxidant, a metal passivator and fatty acid ester base oil, wherein the extreme pressure lubricant is nano boric acid particles, and the particle size of the nano boric acid is 10-100 nm.
The flame-retardant hydraulic fluid composition comprises, by mass, 0.1-2% of an extreme pressure lubricant, 0.1-2% of an antioxidant and 0.01-0.1% of a metal deactivator, wherein the total mass of the flame-retardant hydraulic fluid composition is 100%. 3. The fire resistant hydraulic fluid composition of claim 1, further comprising an ionic liquid having the structure:
the flame-retardant hydraulic fluid composition comprises 0.1-5% by mass of an ionic liquid, based on 100% by mass of the total flame-retardant hydraulic fluid composition.
The flame-retardant hydraulic fluid composition is characterized in that the antioxidant is a phenol antioxidant.
The flame-retardant hydraulic fluid composition is characterized in that the antioxidant is one or more of 2, 6-di-tert-butyl-p-cresol T501, mixed liquid shielding phenol T502A, sulfurized alkylphenol special antioxidant T504, phenolic ester antioxidant T508 and high molecular weight phenol Irganox L135.
The flame-retardant hydraulic fluid composition is characterized in that the metal passivator is at least one of benzotriazole and derivative, and thiadiazole derivative.
The flame-retardant hydraulic fluid composition is characterized in that the metal passivator is one or more of liquid tolyltriazole derivatives Irgamet 39, N-dialkyl amino methylene benzotriazole T551 and thiadiazole derivatives T561.
The flame-retardant hydraulic fluid composition is characterized in that the fatty acid ester base oil is at least one of pentaerythritol oleate PE418 and trimethylolpropane oleate TMP 318.
In order to achieve the above object, the present invention also provides a method for preparing a flame retardant hydraulic fluid composition, comprising the steps of:
putting the fatty acid ester base oil into a blending kettle, stirring and heating to 40-50 ℃; sequentially adding metal deactivator and antioxidant, and stirring for 20-30 min; adding the extreme pressure lubricant in batches, and stirring at the temperature of 40-50 ℃;
wherein the extreme pressure lubricant is nano boric acid particles, and the particle size of the nano boric acid is 10-100 nm.
The invention has the beneficial effects that:
the invention uses the nano boric acid as the extreme pressure lubricant of the fatty acid ester type flame-retardant hydraulic fluid, has excellent high temperature resistance and lubricating property, and can self-repair a lubricating film; choline lipoic acid ionic liquid is used as a lubricant, an antioxidant and an antirust agent of hydraulic fluid.
The flame-retardant hydraulic fluid composition has the following characteristics:
(1) the flame-retardant hydraulic fluid composition can still maintain excellent lubricating property at high temperature, the lubricating film is durable, and the acid value of an oil product cannot be increased in the lubricating process;
(2) the ionic liquid in the flame-retardant hydraulic fluid composition can still maintain excellent lubricating property at high temperature, has excellent antioxidation and can effectively disperse high-temperature oxidized oil sludge;
(3) the flame-retardant hydraulic fluid composition does not contain toxic, environment-friendly and difficult-to-degrade additive components such as chlorine, phosphorus and the like, belongs to an environment-friendly product, and is easy to carry out post-treatment on waste oil.
Detailed Description
The following examples of the present invention are described in detail, and the present invention is carried out on the premise of the technical scheme of the present invention, and detailed embodiments and procedures are given, but the scope of the present invention is not limited to the following examples, and the following examples are experimental methods without specific conditions noted, and generally follow conventional conditions.
The invention provides a flame-retardant hydraulic fluid composition which comprises an extreme pressure lubricant, an antioxidant, a metal passivator and fatty acid ester base oil, wherein the extreme pressure lubricant is nano boric acid particles, and the particle size of the nano boric acid is 10-100 nm.
The invention uses nano boric acid particles as the component of the extreme pressure lubricant, and boric acid is a compound with ionic bonds, covalent bonds and hydrogen bonds. On the one hand, the nano boric acid particles can form a surface boundary film, and can easily slide to another layer in a film layer of a crystal lattice, so that the friction coefficient can be effectively reduced. On the other hand, the stable temperature of the boric acid is as high as 170 ℃, and the boric acid can automatically recover the laminated structure when the temperature is lower than 170 ℃, so that a self-repairing lubricating film is formed. In addition, the process of reducing the friction coefficient by boric acid is different from the common extreme pressure lubricant, and the common extreme pressure lubricant needs to be heated and decomposed to generate chemical reaction to generate a small molecular acid compound, so that the purpose of reducing the friction coefficient is achieved; boric acid forms a self-lubricating molecular film layer which does not generate chemical reaction, and does not generate acidic compounds, so that the acid value of the oil product is not increased, and the service life of the oil product is not greatly shortened. Furthermore, the invention has better extreme pressure lubrication effect by controlling the particle size of the nano boric acid to be 10-100 nm.
In one embodiment, the fire-retardant hydraulic fluid composition of the present invention further comprises an ionic liquid, specifically a choline lipoic acid ionic liquid, wherein the ionic liquid has the following structure:
the invention uses the ionic liquid as a lubricant, an antioxidant and an antirust agent of the fatty acid ester type flame-retardant hydraulic fluid. The choline lipoic acid ionic liquid has the following characteristics: (1) the ionic liquid has wide temperature range, the choline lipoic acid ionic liquid can still keep a liquid state at the temperature of more than 200 ℃, the stability is high, the volatility is extremely low, and the choline lipoic acid ionic liquid is odorless and nonflammable, so that the odor of an oil product is ensured, and the volatility is low; (2) the oil product has excellent antioxidant effect and strong dissolving capacity, and can effectively disperse and solubilize impurities such as oil sludge, coking substances and the like generated by aging in the using process of the oil product, so that the oil product has long service life; (3) the lubricating oil has excellent oil film strength, and can provide excellent lubricating performance and long-acting antirust performance for oil products; in detail, due to the action of electrostatic force, the choline lipoic acid ionic liquid generates strong physical adsorption on the worn surface of metal, so that an oil film is stable and compact, and excellent lubricating performance and durable antirust performance are provided for oil products.
In one embodiment, the extreme pressure lubricant is 0.1-2% by mass, the antioxidant is 0.1-2% by mass, and the metal deactivator is 0.01-0.1% by mass, based on 100% by mass of the total flame-retardant hydraulic fluid composition. In another embodiment, the ionic liquid is present in an amount of 0.1 to 5% by mass, based on 100% by mass of the total mass of the flame-retardant hydraulic fluid composition.
In one embodiment, the antioxidant of the present invention is a phenolic antioxidant, preferably one or more of 2, 6-di-tert-butyl-p-cresol (T501), mixed liquid shielding phenol (T502A), sulfurized alkylphenol specific antioxidant (T504), phenolic ester antioxidant (T508), and high molecular weight phenol (Irganox L135).
In one embodiment, the metal deactivator of the present invention is benzotriazole and derivatives thereof and thiadiazole derivatives, and preferably, is one or more of liquid tolyltriazole derivatives (Irgamet 39), N-dialkylaminomethylenephotriazole (T551) and thiadiazole derivatives (T561).
In one embodiment, the fatty acid ester base oil of the present invention is a complex ester or polyol ester base oil, and preferably, is one or more of pentaerythritol oleate (PE418) and trimethylolpropane oleate (TMP 318).
Therefore, the flame-retardant hydraulic fluid composition provided by the invention has excellent high temperature resistance, lubricating property and oxidation resistance, can self-repair a lubricating film, does not contain toxic substances, and is environment-friendly.
The invention also provides a preparation method of the flame-retardant hydraulic fluid composition, which comprises the following steps:
putting the fatty acid ester base oil into a blending kettle, stirring and heating to 40-50 ℃; sequentially adding metal deactivator and antioxidant, and stirring for 20-30 min; adding the extreme pressure lubricant in batches, and stirring at the temperature of 40-50 ℃;
wherein the extreme pressure lubricant is nano boric acid particles, and the particle size of the nano boric acid is 10-100 nm.
In one embodiment, the method for preparing a fire retardant hydraulic fluid composition of the present invention further comprises the steps of:
(1) the components are respectively measured according to the proportion for standby;
(2) putting the fatty acid ester base oil into a blending kettle, stirring and heating to 40-50 ℃;
(3) sequentially adding metal deactivator, antioxidant and ionic liquid, and stirring for 20-30 min;
(4) then adding the nano boric acid particles in batches, keeping the temperature at 40-50 ℃ and stirring for more than 1 h;
(5) sampling, analyzing, packaging and warehousing.
The technical solution of the present invention is further described in detail by specific examples below. Unless otherwise specified, the following% amounts are% by mass.
Example 1
The components and the addition amount are shown in the following table:
the above components were mixed according to the above preparation method.
Example 2
The components and the addition amount are shown in the following table:
the above components were mixed according to the above preparation method.
Example 3
The components and the addition amount are shown in the following table:
the above components were mixed according to the above preparation method.
Comparative example 1
Comparative example 1 is similar to example 3 except that the choline lipoic acid ionic liquid is not added and the components and amounts added are as follows:
the above components were mixed according to the above preparation method.
Comparative example 2
Comparative example 2 is similar to example 3 except that the nano-boric acid particles were not added and the components and amounts added are as follows:
the above components were mixed according to the above preparation method.
Comparative example 3
Comparative example 3 is a commercially available conventional fatty acid ester type flame retardant hydraulic fluid.
The test method shows that the important oil performance test methods are all the existing standard methods: the service life of oil products is greatly different from that of fatty acid ester type flame-retardant hydraulic fluid by adopting a rotating oxygen bomb (150 ℃) method (a standard method ASTM D2272) and the oxidation life is different by 50min, because the oil products have a large amount of double bonds and have poorer oxidation stability than mineral oil; the extreme pressure lubricity of the oil is tested by adopting a four-ball tester to test the wear-scar diameter (standard method SH/T0189), testing the extrusion performance of the oil by using an FZG tester (GB/T19936.1), and testing the long-term running extreme pressure lubricity of the oil by using a V104C pump rack (SH/T0307).
The performance test results are as follows:
as shown by the results of the above spinning aeroelastic test, the fatty acid ester type nonflammable hydraulic fluid of examples 1 to 3 of the present invention has a long service life, and comparative examples 1 and 2 also have a long service life due to the addition of the nano boric acid particles or the choline lipoic acid ionic liquid. The fatty acid ester type flame-retardant hydraulic fluids of examples 1 to 3 of the present invention had lower wear-scar diameters and thus had better extreme pressure lubricity than those of comparative examples 1 to 3. The fatty acid ester type flame-retardant hydraulic fluid in the embodiments 1 to 3 of the invention has lower total weight loss in the vane pump test, so the lubricating oil has excellent lubricating durability.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The flame-retardant hydraulic fluid composition is characterized by comprising an extreme pressure lubricant, an antioxidant, a metal passivator and fatty acid ester base oil, wherein the extreme pressure lubricant is nano boric acid particles, and the particle size of the nano boric acid is 10-100 nm.
2. The fire-retardant hydraulic fluid composition according to claim 1, wherein the extreme pressure lubricant is contained in an amount of 0.1 to 2% by mass, the antioxidant is contained in an amount of 0.1 to 2% by mass, and the metal deactivator is contained in an amount of 0.01 to 0.1% by mass, based on 100% by mass of the total mass of the fire-retardant hydraulic fluid composition.
3. The fire resistant hydraulic fluid composition of claim 1, further comprising an ionic liquid having the structure:
4. the fire-retardant hydraulic fluid composition according to claim 1, wherein the ionic liquid is contained in an amount of 0.1 to 5% by mass based on 100% by mass of the total mass of the fire-retardant hydraulic fluid composition.
5. The fire resistant hydraulic fluid composition of claim 1, wherein the antioxidant is a phenolic antioxidant.
6. The fire-retardant hydraulic fluid composition according to claim 5, wherein the antioxidant is one or more of 2, 6-di-tert-butyl-p-cresol T501, mixed liquid shielding phenol T502A, sulfurized alkylphenol special antioxidant T504, phenolic ester antioxidant T508, and high molecular weight phenol Irganox L135.
7. The fire-resistant hydraulic fluid composition according to claim 1, wherein the metal deactivator is at least one of benzotriazole derivatives and thiadiazole derivatives.
8. The fire-retardant hydraulic fluid composition according to claim 7, wherein the metal deactivator is one or more of liquid tolyltriazole derivative Irgamet 39, N-dialkylaminomethylenephotriazole T551, and thiadiazole derivative T561.
9. The flame-retardant hydraulic fluid composition according to claim 1, wherein the fatty acid ester base oil is at least one of pentaerythritol oleate PE418 and trimethylolpropane oleate TMP 318.
10. A preparation method of a flame-retardant hydraulic fluid composition is characterized by comprising the following steps:
putting the fatty acid ester base oil into a blending kettle, stirring and heating to 40-50 ℃; sequentially adding metal deactivator and antioxidant, and stirring for 20-30 min; adding the extreme pressure lubricant in batches, and stirring at the temperature of 40-50 ℃;
wherein the extreme pressure lubricant is nano boric acid particles, and the particle size of the nano boric acid is 10-100 nm.
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| CN115160996A (en) * | 2022-08-24 | 2022-10-11 | 河南金马石油科技有限责任公司 | Extreme pressure lubricating grease for drilling fluid and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115160996A (en) * | 2022-08-24 | 2022-10-11 | 河南金马石油科技有限责任公司 | Extreme pressure lubricating grease for drilling fluid and preparation method thereof |
| CN115160996B (en) * | 2022-08-24 | 2023-07-28 | 河南金马石油科技有限责任公司 | Extreme pressure lubricating grease for drilling fluid and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114836251B (en) | 2023-04-07 |
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