CN110484332B - Hydraulic oil composite additive, preparation method thereof and hydraulic oil - Google Patents
Hydraulic oil composite additive, preparation method thereof and hydraulic oil Download PDFInfo
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- CN110484332B CN110484332B CN201910870980.3A CN201910870980A CN110484332B CN 110484332 B CN110484332 B CN 110484332B CN 201910870980 A CN201910870980 A CN 201910870980A CN 110484332 B CN110484332 B CN 110484332B
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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
- C10M167/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound, a non-macromolecular compound and a compound of unknown or incompletely defined constitution, each of these compounds being essential
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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
-
- 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
- C10M2215/224—Imidazoles
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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
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral 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
- 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
-
- 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
- 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
- C10M2223/045—Metal containing thio derivatives
-
- 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
- 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
Abstract
The invention provides a hydraulic oil composite additive, a preparation method thereof and hydraulic oil, wherein the hydraulic oil composite additive comprises the following components in parts by mass: 50-80 parts of dialkyl dithiophosphate metal salt, 5-8 parts of imidazoline derivative, 0.2-0.5 part of benzotriazole derivative, 5-12 parts of alkyl phosphate and salt thereof, 1-5 parts of sulfonate and 1-5 parts of boronized polyisobutylene succinimide. The high-temperature-resistant heat-resistant oil can be added into any base oil, can improve the heat stability of the hydraulic oil, and has the advantages of outstanding heat stability performance, excellent effect, prolonged service life of the hydraulic oil, protection of the whole equipment from oxidation, good heat stability, long-term maintenance of proper viscosity, higher cost performance, longer service life of the hydraulic oil and the like.
Description
Technical Field
The invention relates to the technical field of hydraulic oil additives, in particular to a hydraulic oil composite additive, a preparation method thereof and hydraulic oil.
Background
The hydraulic oil is a hydraulic medium used by a hydraulic system utilizing hydraulic pressure energy, and plays roles of energy transfer, wear resistance, system lubrication, corrosion resistance, rust resistance, cooling and the like in the hydraulic system. For hydraulic oil, the requirements of a hydraulic device on the viscosity of liquid at working temperature and starting temperature are firstly met, and the viscosity change of lubricating oil is directly related to hydraulic action, transmission efficiency and transmission precision, so that the viscosity-temperature performance and the shear stability of the oil are also required to meet various requirements proposed by different purposes.
At present, the thermal stability of the conventional hydraulic oil complexing agent in the second class of oil generally reaches 168 hours or even is lower, and then the corrosion of a copper bar and a steel bar occurs, and even oil sludge is generated.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The first purpose of the present invention is to provide a hydraulic oil complex agent, which completely or partially solves the above problems, and the hydraulic oil complex agent comprises an antioxidant, an imidazoline derivative, a benzotriazole derivative, an alkyl phosphate ester and a salt thereof, a sulfonate and a boronized polyisobutylene succinimide in a specific ratio, can be added into any base oil, can improve the thermal stability of hydraulic oil, and has the advantages of outstanding thermal stability, excellent effect, extension of the service life of hydraulic oil, protection of the whole device from oxidation, good thermal stability, long-term maintenance of proper viscosity, higher cost performance, longer service life of hydraulic oil, and the like.
The second purpose of the invention is to provide a preparation method of the hydraulic oil complexing agent, which has the advantages of simple preparation method and the like by uniformly mixing the metal dialkyl dithiophosphate, the imidazoline derivative, the benzotriazole derivative, the alkyl phosphate and the salt thereof, the sulfonate and the boronized polyisobutylene succinimide.
In order to achieve the above purpose of the present invention, the following technical solutions are adopted:
the hydraulic oil composite additive comprises the following components in parts by weight:
50-80 parts of dialkyl dithiophosphate metal salt, 5-8 parts of imidazoline derivative, 0.2-0.5 part of benzotriazole derivative, 5-12 parts of alkyl phosphate and salt thereof, 1-5 parts of sulfonate and 1-5 parts of boronized polyisobutylene succinimide.
Preferably, the hydraulic oil composite additive comprises the following components in parts by weight:
70-80 parts of dialkyl dithiophosphate metal salt, 6-7 parts of imidazoline derivative, 0.3-0.4 part of benzotriazole derivative, 8-10 parts of alkyl phosphate and salt thereof, 2-4 parts of sulfonate and 2-4 parts of boronized polyisobutylene succinimide.
Preferably, the metal dialkyldithiophosphate is zinc dialkyldithiophosphate.
Preferably, the mass ratio of the metal dialkyldithiophosphate to the benzotriazole derivative is 75: 0.2-0.5, more preferably in a mass ratio of 75: 0.3.
preferably, the mass ratio of the sulfonate to the boronated polyisobutylene succinimide is 1-1.2: 2, and more preferably 1: 2.
preferably, the mass ratio of the alkyl phosphate ester or salt thereof to the imidazoline derivative is 8:5-6, and more preferably 8: 5.
The preparation method of the hydraulic oil composite additive comprises the following steps:
and uniformly mixing the metal dialkyl dithiophosphate, the alkyl phosphate and the salt thereof, the benzotriazole derivative, the imidazoline derivative, the sulfonate and the boronized polyisobutylene succinimide to obtain the hydraulic oil composite additive.
The hydraulic oil comprises base oil and the hydraulic oil composite additive.
Preferably, the hydraulic oil composite additive accounts for 0.6-0.8% of the base oil.
Preferably, the base oil is selected from a group consisting of a first base oil, a second base oil, a third base oil, or a fourth base oil.
Compared with the prior art, the invention has the beneficial effects that:
(1) the hydraulic oil complexing agent provided by the invention comprises dialkyl dithiophosphate metal salt, imidazoline derivative, benzotriazole derivative, alkyl phosphate ester and salt thereof, sulfonate and boronized polyisobutylene succinimide in a specific proportion, can be used in any base oil, can improve the thermal stability of hydraulic oil, and has the advantages of outstanding thermal stability performance, excellent effect, prolonged service life of hydraulic oil, protection of the whole equipment from oxidation, good thermal stability, long-term maintenance of proper viscosity, higher cost performance, longer service life of hydraulic oil and the like.
(2) The hydraulic oil complexing agent provided by the invention can reach 200 hours in a thermal stability experiment in second-class oil.
(3) The hydraulic oil complexing agent provided by the invention is wide in application range, and can prolong the service life of equipment, prolong the oil change period and reduce the environmental problem caused by oil waste when being added into any hydraulic oil in engineering machinery, aviation and navigation and automobile industries.
(4) The preparation method of the hydraulic oil complexing agent provided by the invention has the advantages that the dialkyl dithiophosphate metal salt, the imidazoline derivative, the benzotriazole derivative, the alkyl phosphate and the salt thereof, the sulfonate and the boronized polyisobutylene succinimide are uniformly mixed, the preparation method is simple, and the like.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following detailed description, but those skilled in the art will understand that the following described examples are some, not all, of the examples of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The invention provides a hydraulic oil composite additive which comprises the following components in parts by weight:
50-80 parts (e.g., 50, 60, 70, 80, 55, 65, 75 parts) of metal dialkyldithiophosphate, 5-8 parts (e.g., 5, 5.5, 6, 6.5, 7, 7.5, 8 parts) of imidazoline derivative, 0.2-0.5 part (e.g., 0.2, 0.3, 0.4, 0.5 part) of benzotriazole derivative, 5-12 parts (e.g., 5, 6, 7, 8, 9, 10, 11, 12 parts) of alkylphosphoric acid ester and salt thereof, 1-5 parts (e.g., 1, 2, 3, 4, 5 parts) of sulfonate salt, and 1-5 parts (e.g., 1, 2, 3, 4, 5 parts) of boronated polyisobutylene succinimide.
Wherein, imidazoline surfactant is a surfactant with excellent performance, the molecule of which contains anionic and cationic ion groups at the same time, and the imidazoline surfactant is an improved and balanced amphoteric surfactant. The benzotriazole derivatives form an inert chelate protective film on the surface of the metal by coordination bonds, so that potential points on the surface of the metal are reduced, and the catalytic activity of the passivated metal is achieved.
The hydraulic oil complexing agent provided by the invention comprises dialkyl dithiophosphate metal salt (antioxidant), imidazoline derivative (corrosion inhibitor), benzotriazole derivative (metal deactivator), alkyl phosphate and salt thereof (antiwear agent), sulfonate (detergent) and boronized polyisobutylene succinimide (dispersant) in a specific proportion, can be used in any base oil, can improve the thermal stability of hydraulic oil, and has the advantages of outstanding thermal stability, excellent effect, prolonged service life of hydraulic oil, protection of the whole equipment from oxidation, good thermal stability, long-term maintenance of proper viscosity, higher cost performance, longer service life of hydraulic oil and the like.
In some preferred embodiments of the present invention, the components of the hydraulic oil complex additive are preferably selected from the following components in parts by mass:
70-80 parts of dialkyl dithiophosphate metal salt, 6-7 parts of imidazoline derivative, 0.3-0.4 part of benzotriazole derivative, 8-10 parts of alkyl phosphate and salt thereof, 2-4 parts of sulfonate and 2-4 parts of boronized polyisobutylene succinimide.
In some preferred embodiments of the invention, the metal salt of a dialkyldithiophosphate is a zinc dialkyldithiophosphate.
Zinc Dialkyldithiophosphate (ZDTP), also known as accelerator ZDTP, has the molecular formula C28H60O4P2S4Zn。
In some preferred embodiments of the invention, the mass ratio of the metal dialkyldithiophosphate to the benzotriazole derivative is 75: 0.2-0.5, preferably in a mass ratio of 75: 0.3.
in some preferred embodiments of the present invention, the mass ratio of the sulfonate salt to the boronated polyisobutylene succinimide is from 1 to 1.2: 2, and more preferably 1: 2.
in some preferred embodiments of the present invention, the mass ratio of the alkyl phosphate ester or salt thereof to the imidazoline derivative is 8:5-6, with a preferred mass ratio of 8: 5.
The preparation method of the hydraulic oil composite additive comprises the following steps:
and uniformly mixing the metal dialkyl dithiophosphate, the alkyl phosphate and the salt thereof, the benzotriazole derivative, the imidazoline derivative, the sulfonate and the boronized polyisobutylene succinimide to obtain the hydraulic oil composite additive.
The hydraulic oil comprises base oil and the hydraulic oil composite additive.
In some preferred embodiments of the present invention, the hydraulic oil complex additive accounts for 0.6-0.8% of the base oil.
In some preferred embodiments of the present invention, the base oil is selected from a group consisting of a first base oil, a second base oil, a third base oil, or a fourth base oil.
Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.
Example 1
The hydraulic oil composite additive provided by the embodiment specifically comprises the following components:
zinc dialkyl dithiophosphate 75 parts
Imidazoline derivative 5 parts
Benzotriazole derivative 0.3 part
Alkyl phosphate and its salt 8 parts
1 part of sulfonate
2 parts of boronized polyisobutylene succinimide
The preparation method comprises mixing all the raw materials.
Example 2
Zinc dialkyl dithiophosphate 70 parts
Imidazoline derivative 5 parts
Benzotriazole derivative 0.2 part
Alkyl phosphate and its salt 5 parts
1 part of sulfonate
Boronized polyisobutylene succinimide 1 part
The preparation method comprises mixing all the raw materials.
Example 3
80 parts of zinc dialkyl dithiophosphate
Imidazoline derivative 8 parts
Benzotriazole derivative 0.5 part
Alkyl phosphate and its salt 12 parts
5 portions of sulfonate
Boronized polyisobutylene succinimide 5 parts
The preparation method comprises mixing all the raw materials.
Example 4
50 parts of zinc dialkyl dithiophosphate
Imidazoline derivative 6 parts
Benzotriazole derivative 0.3 part
Alkyl phosphate and its salt 6 parts
Sulfonate 2 parts
2 parts of boronized polyisobutylene succinimide
The preparation method comprises mixing all the raw materials.
Example 5
Zinc dialkyl dithiophosphate 60 parts
Imidazoline derivative 7 parts
Benzotriazole derivative 0.4 part
Alkyl phosphate and its salt 7 parts
Sulfonate 3 parts
Boronized polyisobutylene succinimide 3 parts
The preparation method comprises mixing all the raw materials.
Example 6
Zinc dialkyl dithiophosphate 55 parts
Imidazoline derivative 5 parts
Benzotriazole derivative 0.5 part
Alkyl phosphate and its salt 5 parts
Sulfonate 3 parts
Boronized polyisobutylene succinimide 5 parts
The preparation method comprises mixing all the raw materials.
Example 7
65 parts of zinc dialkyl dithiophosphate
Imidazoline derivative 6 parts
Benzotriazole derivative 0.3 part
Alkyl phosphate and its salt 8 parts
Sulfonate 4 parts
Boronized polyisobutylene succinimide 4 parts
The preparation method comprises mixing all the raw materials.
Example 8
77 parts of zinc dialkyldithiophosphate
Imidazoline derivative 6 parts
Benzotriazole derivative 0.3 part
Alkyl phosphate and its salt 9 parts
Sulfonate 4 parts
Boronized polyisobutylene succinimide 3 parts
The preparation method comprises mixing all the raw materials.
Example 9
66 parts of zinc dialkyl dithiophosphate
Imidazoline derivative 6 parts
Benzotriazole derivative 0.2 part
Alkyl phosphate and its salt 11 parts
1 part of sulfonate
Boronized polyisobutylene succinimide 5 parts
The preparation method comprises mixing all the raw materials.
Example 10
77 parts of zinc dialkyldithiophosphate
Imidazoline derivative 7 parts
Benzotriazole derivative 0.4 part
Alkyl phosphate and its salt 10 parts
5 portions of sulfonate
Boronized polyisobutylene succinimide 1 part
The preparation method comprises mixing all the raw materials.
Comparative example 1 compared to example 1, the metal salt of a dialkyldithiophosphate and benzotriazole derivative ratio was 5: 0.03.
Comparative example 2 compared to example 1, the ratio of sulfonate to boronated polyisobutylene succinimide was 2: 1.
comparative example 3 compared to example 1, the ratio of alkylphosphoric acid ester and salt thereof to imidazoline derivative was 1: 1.
Experimental example improvement test of thermal stability of hydraulic oil complexing agent
Examples 1 to 10 and comparative examples 1 to 3 were added to a second base oil in a mass ratio of 0.6% and their thermal stability was measured to perform the thermal stability of a standard SH/T0209 hydraulic oil, and the results are shown in Table 1.
TABLE 1 test results of thermal stability of hydraulic oil complexing agent
| Serial number | Thermal stability time/hour |
| Example 1 | 200 |
| Example 2 | 200 |
| Example 3 | 200 |
| Example 4 | 200 |
| Example 5 | 200 |
| Example 6 | 200 |
| Example 7 | 200 |
| Example 8 | 200 |
| Example 9 | 200 |
| Example 10 | 200 |
| Comparative example 1 | 168 |
| Comparative example 2 | 168 |
| Comparative example 3 | 168 |
Experimental results show that the hydraulic oil complexing agent can increase the thermal stability time to 200 hours or more when added into base oil, and the thermal stability time is higher than 168 hours of national standards.
While particular embodiments of the present invention have been illustrated and described, it will be appreciated that the above embodiments are merely illustrative of the technical solution of the present invention and are not restrictive; those of ordinary skill in the art will understand that: modifications may be made to the above-described embodiments, or equivalents may be substituted for some or all of the features thereof without departing from the spirit and scope of the present invention; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; it is therefore intended to cover in the appended claims all such alternatives and modifications that are within the scope of the invention.
Claims (9)
1. The hydraulic oil composite additive is characterized by comprising the following components in parts by weight:
50-80 parts of dialkyl dithiophosphate metal salt, 5-8 parts of imidazoline derivative, 0.2-0.5 part of benzotriazole derivative, 5-12 parts of alkyl phosphate and salt thereof, 1-5 parts of sulfonate and 1-5 parts of boronized polyisobutylene succinimide;
the metal dialkyl dithiophosphate is zinc dialkyl dithiophosphate;
the mass ratio of the metal dialkyldithiophosphate to the benzotriazole derivative is 75: 0.2-0.5;
the mass ratio of the sulfonate to the boronized polyisobutylene succinimide is 1-1.2: 2;
the mass ratio of the alkyl phosphate and the salt thereof to the imidazoline derivative is 8: 5-6.
2. The hydraulic oil composite additive as defined in claim 1, which is composed of the following components in parts by mass:
70-80 parts of dialkyl dithiophosphate metal salt, 6-7 parts of imidazoline derivative, 0.3-0.4 part of benzotriazole derivative, 8-10 parts of alkyl phosphate and salt thereof, 2-4 parts of sulfonate and 2-4 parts of boronized polyisobutylene succinimide.
3. The hydraulic oil complex additive of claim 1, wherein the mass ratio of the metal dialkyldithiophosphate to the benzotriazole derivative is 75: 0.3.
4. the hydraulic oil complex additive of claim 1, wherein the mass ratio of the sulfonate to the boronated polyisobutylene succinimide is 1: 2.
5. the hydraulic oil complex additive of claim 1, wherein the mass ratio of the alkyl phosphate ester or salt thereof to the imidazoline derivative is 8: 5.
6. The method for preparing a hydraulic oil complex additive according to any one of claims 1 to 5, comprising the steps of:
and uniformly mixing the metal dialkyl dithiophosphate, the alkyl phosphate and the salt thereof, the benzotriazole derivative, the imidazoline derivative, the sulfonate and the boronized polyisobutylene succinimide to obtain the hydraulic oil composite additive.
7. A hydraulic oil comprising a base oil and the hydraulic oil complex additive of any one of claims 1-5.
8. The hydraulic oil of claim 7, wherein the hydraulic oil compound additive accounts for 0.6-0.8% of the mass of the base oil.
9. The hydraulic oil of claim 7, wherein the base oil is selected from a group consisting of a first base oil, a second base oil, a third base oil, and a fourth base oil.
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