CN111100740B - Long-life synergistic compressor oil composition and preparation method thereof - Google Patents
Long-life synergistic compressor oil composition and preparation method thereof Download PDFInfo
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- CN111100740B CN111100740B CN201911348596.3A CN201911348596A CN111100740B CN 111100740 B CN111100740 B CN 111100740B CN 201911348596 A CN201911348596 A CN 201911348596A CN 111100740 B CN111100740 B CN 111100740B
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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
- 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
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
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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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
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- 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
- 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
- C10M2209/101—Condensation polymers of aldehydes or ketones and phenols, e.g. Also polyoxyalkylene ether 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
- 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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- 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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- 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
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
- C10M2215/065—Phenyl-Naphthyl amines
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- 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
- C10M2215/08—Amides
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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
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
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- 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
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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
- 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
- C10M2229/04—Siloxanes with specific structure
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Abstract
The invention relates to a long-life synergistic compressor oil composition and a preparation method thereof, which are characterized in that the composition comprises base oil, a peroxide decomposer, a friction oiliness improver, a high-temperature antioxidant, a viscosity improver, an ashless detergent dispersant, an extreme pressure antiwear agent, an antifoaming agent, an antirust agent, a demulsification oil-water separating agent and a free radical inhibitor. On the basis of lubricating oil, a proper amount of free radical inhibitor and hydrolysis-resistant boric acid ashless antiwear agent are added, and under the synergistic effect of the free radical inhibitor and other additives in the lubricating oil, the long-life synergistic compressor oil composition disclosed by the invention has excellent thermal oxidation stability and low coking property on the premise of keeping better extreme pressure antiwear property, is convenient for synergy and environmental protection, prolongs the service life of a compressor, and reduces maintenance cost and downtime.
Description
Technical Field
The invention relates to the field of compressor lubricating oil, in particular to a long-life synergistic compressor oil composition and a preparation method thereof.
Background
In recent years, in modern high and new technologies and national economic development, machines for compressing gas are increasingly used, and an air compressor is a device for compressing gas. The compressor has wide application, almost extends to various fields such as industry, agriculture, national defense and the like, occupies an important position, and has very important significance for the development of national economy. With the rapid development of modern high technology, various functions of compressor equipment are widely improved, and therefore, the improvement and the demand of matched oil products on the compressor are increased day by day.
Lubricating oil is an important working medium in a compressor, and needs to have high oxidation resistance, high flash point and high-temperature stability, and also needs to have cooling, lubricating, wear-resisting, corrosion-resisting, anti-aging and sealing properties. In the working circulation process of the compressor, because the rotating speed of the compressor is high, the pressure is high, the oil circulation speed is high, especially the normal exhaust temperature of compressor equipment is 75-90 ℃, if the wear-resistant protection of compressor oil to the compressor does not meet the requirement, the service temperature of the compressor is too high, the lubricating oil is subjected to thermal decomposition, harmful free carbon and acid substances are generated, carbon deposition is deposited, an oil way is blocked, a serious person can coke a main machine, and the service life of the compressor is shortened, therefore, the lubricating oil with excellent performance and the service life of the compressor is required to be prolonged.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a long-life synergistic compressor oil composition and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme: the long-life synergistic compressor oil composition is characterized by comprising the following components in percentage by weight:
peroxide decomposer: 0.2-5%;
the friction oil improver comprises: 0.05 to 4.5 percent;
high-temperature antioxidant: 0.02-0.9%;
a finger sticking improver: 0.5 to 3.5 percent;
ashless detergent dispersant: 0.05 to 0.5 percent;
extreme pressure antiwear agent: 0.5 to 3.8 percent;
and (3) an antifoaming agent: 0.01 to 0.03 percent;
antirust agent: 0.2 to 1.5 percent;
demulsifying oil-water separating agent: 0.05 to 0.45 percent;
free radical inhibitors: 0.04-5.8%;
the rest is made up by base oil with well-prepared viscosity.
In particular, the composition comprises the following components in percentage by weight:
peroxide decomposer: 0.3-2.5%;
friction oil improver: 0.1 to 3.2 percent;
high-temperature antioxidant: 0.05 to 0.7 percent;
a finger sticking improver: 0.8 to 2.5 percent;
ashless detergent dispersant: 0.06 to 0.3 percent;
extreme pressure antiwear agent: 0.8 to 3.5 percent;
and (3) anti-foaming agent: 0.02-0.03%;
antirust agent: 0.5-1%;
demulsifying oil-water separating agent: 0.08-0.35%;
free radical inhibitors: 0.03 to 2.3 percent;
the rest is made up by base oil with well-prepared viscosity.
In particular, the synthetic base oil is one or more of olefins, phthalates, benzene tricarboxylates, polyethers and branched neopolyol esters.
In particular, the peroxide decomposer is one or more of sulfurized terpene, zinc dialkyl dithiophosphate, dialkyl monosulfide and sulfurized olefin.
In particular, the friction oiliness improver is one or more of poly linoleic acid, benzotriazole octadecylamine salt and sulfurized olefin cottonseed oil.
Particularly, the high-temperature antioxidant is one or more of liquid high-molecular-weight phenol, 2, 6-di-tert-butyl-p-cresol, p' -diisooctyl diphenylamine and didodecyl diphenylamine.
In particular, the viscosity modifier is one or more of polymethacrylate, ethylene/propylene copolymer and hydrogenated styrene/diene copolymer.
Particularly, the ashless clean dispersing agent is one or more of monomeric succinimide, dimeric succinimide, polymeric succinimide, succinate, boronized succinimide, ashless phosphonate and benzylamine.
In particular, the extreme pressure antiwear agent is a hydrolysis-resistant boric acid ashless antiwear agent.
In particular, the antifoaming agent is one or more of acrylate and silicone oil copolymer and acrylate and ether copolymer.
Particularly, the antirust agent is one or more of alkenyl succinic acid, N-oleoyl sarcosine octadecylamine salt and alkyl phosphate imidazoline salt.
In particular, the demulsifying oil-water separating agent is one or more of high molecular polyether and propylene oxide diamine polycondensate.
In particular, the free radical inhibitor is one or more of 2, 6-di-tert-butyl phenol, 2, 6-di-tert-butyl-p-cresol, dialkyl diphenylamine, phenyl-alpha-naphthylamine and 2, 6-di-tert-butyl-alpha-dimethylamino-p-cresol.
The preparation method of the long-life synergistic compressor oil composition is characterized by comprising the following steps of:
(1) The viscosity range of the required base oil is prepared into 41-48mm at 40 DEG C 2 /s；
(2) Putting the synthetic base oil obtained according to the percentage into a blending kettle, and stirring for 60-90min at 50-70 ℃;
(3) Adding the peroxide decomposer, the friction oiliness improver, the high-temperature antioxidant, the viscosity index improver, the ashless detergent dispersant, the extreme pressure antiwear agent, the antifoaming agent, the antirust agent, the demulsifying oil-water separating agent and the free radical inhibitor which are obtained according to the percentage into a mixing kettle, and stirring and mixing for 60-90min at 50-70 ℃.
The invention has the beneficial effects that: on the basis of lubricating oil, a proper amount of free radical inhibitor and hydrolysis-resistant boric acid ashless anti-wear agent are added, and under the synergistic effect of the free radical inhibitor and other additives in the lubricating oil, the long-life synergistic compressor oil composition has excellent thermal oxidation stability and low coking property on the premise of keeping better extreme pressure anti-wear property, is convenient for synergy and environmental protection, prolongs the service life of a compressor, and reduces maintenance cost and downtime.
Detailed Description
Test 1
Several base oils were tested for antioxidant properties (ASTM D4636, 204 ℃ C.), the results of which are shown in Table 1.
TABLE 1
As shown in Table 1, in the present invention, in order to maintain the lubricity and wear resistance of the long-life synergistic compressor oil composition, and to achieve both excellent thermal oxidation stability and low coking property, the base oil is preferably a branched neopolyol ester base oil with excellent oxidation resistance, and Nycobase8311 (viscosity 22.6 at 40 ℃) and Nycobase1040X (viscosity 40 ℃ C.) are used as the base oilViscosity 94.1), and the viscosity range of the prepared base oil is 41-48mm at 40 DEG C 2 (s), wherein the ratio of Nycobase8311 type base oil to Nycobase1040 type base oil is (1-1.5): (1.8-2.5).
In the present invention, in order to better decompose the photooxide, reduce the branching reaction, and prevent the violent oxidation of the long-life synergistic compressor oil composition, the peroxide decomposer is preferably a mixture of sulfurized terpene and zinc dialkyl dithiophosphate, wherein the content of the mixture of sulfurized terpene and zinc dialkyl dithiophosphate is 1.5-2.0%, the content of sulfurized terpene is 0.8-1.2%, and the content of zinc dialkyl dithiophosphate is 0.7-0.8%.
In the invention, in order to better reduce the friction coefficient of the long-life synergistic compressor oil composition and improve the lubricating property, the friction oil improver is preferably sulfurized olefin cottonseed oil, and the content of the sulfurized olefin cottonseed oil is preferably 0.1-3.2%.
In the invention, in order to improve the high-temperature oxidation stability of the long-life synergistic compressor oil composition, the high-temperature antioxidant is preferably liquid high-molecular-weight phenol, and the preferred content of the high-temperature antioxidant is 0.1-0.8%.
In the invention, in order to better improve the viscosity-temperature property of the long-life synergistic compressor oil composition and stabilize the viscosity change of oil products at high temperature and low temperature, the viscosity-index improver is preferably polymethacrylate, and the content of the polymethacrylate is preferably 0.8-2.5%.
In the present invention, in order to improve the solubilizing and dispersing components of the long-life synergistic compressor oil composition, the ashless clean dispersant is preferably boronated succinimide, and the content thereof is preferably 0.06 to 0.3%.
In the invention, in order to improve the wear resistance of the long-life synergistic compressor oil composition under long-wear conditions, the extreme pressure anti-wear agent is a hydrolysis-resistant boric acid ashless anti-wear agent, and the preferable content of the extreme pressure anti-wear agent is 0.8-3.5%.
In the present invention, in order to rapidly eliminate the foam generated in the operation of the long-life synergistic compressor oil composition, the anti-foaming agent is preferably a copolymer of acrylate and silicone oil, and the preferable content is 0.02-0.03%.
In the invention, in order to better avoid the autoxidation of the metal ion catalyzed long-life synergistic compressor oil composition, the antirust agent is preferably N-oleoyl sarcosine octadecylamine salt, and the preferable content is 0.5-1.0%.
In the invention, in order to improve the performance of quickly separating and avoiding emulsification when meeting water of the long-life synergistic compressor oil composition, the demulsifying oil-water separating agent is preferably high-molecular polyether, and the preferable content is 0.08-0.35%.
In the invention, in order to improve the oxidation stability of the long-life synergistic compressor oil composition, the free radical inhibitor is preferably a composition of phenyl-alpha-naphthylamine and 2, 6-di-tert-butyl-alpha-dimethylamino-p-cresol, wherein the preferred content of the phenyl-alpha-naphthylamine is 0.01-3.5%, and the preferred content of the 2, 6-di-tert-butyl-alpha-dimethylamino-p-cresol is 0.03-2.3%.
The invention is further illustrated by the following examples: the total weight of the long-life synergistic compressor oil composition in each embodiment is 1000kg, and the components are mixed according to the total fraction of 1000 parts.
Example 1
Firstly, 983.8 parts of viscosity blending base oil meeting the standard of the long-life synergistic compressor oil composition is prepared, the viscosity blending base oil is heated to 65 ℃ and stirred for 60min, then 0.4 part of free radical inhibitor, 5 parts of extreme pressure antiwear agent, 2 parts of peroxide decomposer, 0.5 part of friction oiliness improver, 0.2 part of high-temperature antioxidant, 5 parts of viscosity index improver, 0.5 part of ashless clean dispersant, 0.1 part of antifoaming agent, 2 parts of antirust agent and 0.5 part of demulsification oil-water separating agent are added into the base oil, and stirring is carried out for 70min at 65 ℃ to obtain the long-life synergistic compressor oil composition marked as A1.
Example 2
Firstly, 956 parts of viscosity blending base oil meeting the standard of the long-life synergistic compressor oil composition is prepared, the viscosity blending base oil is heated to 65 ℃ and stirred for 60min, then 7 parts of free radical inhibitor, 15 parts of hydrolysis-resistant boric acid ashless antiwear agent, 7 parts of peroxide decomposer, 0.9 part of friction oiliness improver, 0.5 part of high-temperature antioxidant, 7 parts of viscosity index improver, 0.7 part of ashless clean dispersant, 0.1 part of antifoaming agent, 5 parts of antirust agent and 0.8 part of demulsification oil-water separating agent are added into the base oil, and the mixture is stirred for 70min at 65 ℃ to obtain the long-life synergistic compressor oil composition marked as A2.
Example 3
915.9 parts of viscosity blending base oil meeting the standard of the long-life synergistic compressor oil composition is prepared, the viscosity blending base oil is heated to 65 ℃ and stirred for 60min, then 10 parts of free radical inhibitor, 20 parts of hydrolysis-resistant boric acid ashless anti-wear agent, 16 parts of peroxide decomposer, 10 parts of friction oiliness improver, 5 parts of high-temperature antioxidant, 10 parts of viscosity index improver, 0.9 part of ashless detergent dispersant, 0.2 part of anti-foaming agent, 10 parts of antirust agent and 2 parts of demulsification oil-water separating agent are added into the base oil, and the mixture is continuously stirred for 70min at 65 ℃ to obtain the long-life synergistic compressor oil composition of the embodiment, which is marked as A3.
Example 4
874.8 parts of viscosity blending base oil meeting the standard of the long-life synergistic compressor oil composition is prepared, the base oil is heated to 65 ℃ and stirred for 60 mm, then 20 parts of free radical inhibitor, 26 parts of hydrolysis-resistant boric acid ashless anti-wear agent, 20 parts of peroxide decomposer, 20 parts of friction oiliness improver, 7 parts of high-temperature antioxidant, 15 parts of viscosity index improver, 2 parts of ashless clean dispersant, 0.2 part of antifoaming agent, 12 parts of antirust agent and 3 parts of demulsification oil-water separating agent are added into the base oil, and stirring is continued for 70min at 65 ℃, so that the long-life synergistic compressor oil composition of the embodiment is obtained and is marked as A4.
Example 5
740.2 parts of viscosity blending base oil meeting the standard of the long-life synergistic compressor oil composition is prepared, the viscosity blending base oil is heated to 65 ℃ and stirred for 60min, then 58 parts of free radical inhibitor, 38 parts of hydrolysis-resistant boric acid ashless antiwear agent, 50 parts of peroxide decomposer, 45 parts of friction oiliness improver, 9 parts of high-temperature antioxidant, 35 parts of viscosity index improver, 5 parts of ashless detergent dispersant, 0.3 part of antifoaming agent, 15 parts of antirust agent and 4.5 parts of demulsification oil-water separating agent are added into the base oil, and stirring is carried out for 70min at 65 ℃ to obtain the long-life synergistic compressor oil composition of the embodiment, which is marked as A5.
Wherein, the component contents in A1 and A5 are respectively the minimum value and the maximum value, and the component contents in A3-A4 adopt the respective optimized contents.
Test 2
The results of the test (GFC-LU-27-A-13, micro-coking test 230-280 ℃ C., 90 minutes) for the coking characteristics of A3 and A4 prepared in the examples are shown in Table 2.
TABLE 2
Test 3
The following performance tests were conducted on A1 to A5 obtained in examples 1 to 5, and the test results are shown in Table 2, respectively.
(1) Testing the corrosion grade of the A1-A5 to the copper sheet by adopting a method disclosed by GB/T5096;
(2) Testing the PB value of A1-A5 by adopting a four-ball machine test disclosed in GB/T3142;
(3) Testing the Timken passing load value of A1-A5 by using a method disclosed by GB/T11144;
(3) The oxidation induction period (155 ℃) of A1-A5 is tested by the method disclosed in GB/T2951.9;
(5) Testing the service life of A1-A5 by the method disclosed in ASTM D2272 TOST;
(6) Conradson carbon residue was tested by the method disclosed in DIN 51551.
TABLE 3
The test results in table 3 show that the long-life synergistic compressor oil compositions A1 to A5 of the present invention have various significantly excellent properties, which indicates that the long-life synergistic compressor oil compositions of the present invention have a delayed oxidation induction period on the premise of maintaining good lubricity and extreme pressure abrasion resistance, so that the long-life synergistic compressor oil compositions of the present invention have excellent high-temperature oxygen resistance and thermal stability, and the long-life synergistic compressor oil compositions of the present invention can have a service life of 11000 to 12000 hours, as tested by the method disclosed in ASTM D2272 TOST, and meet DIN 51506 VD-L standard requirements.
As is clear from the results A3 and A4 in tables 2 and 3, the types and contents of the components in the long-life synergistic compressor oil composition further enhance the synergistic effect of the components in the long-life synergistic compressor oil composition in the preferable range of the present invention, and the long-life synergistic compressor oil composition is more excellent in various performances. If the duration of the oxidation induction period at 155 ℃ reaches 55 hours, the oxidation resistance test at 204 ℃ reaches 72 hours, the sediment of a micro coking test (273-280 ℃ and 90 minutes) is reduced from 0.9 to 0.63, the PB value of a four-ball machine test is not less than 1996N, the four-ball trace is 0.3, the Timken load is not less than 208N, and the extreme pressure wear resistance is good.
Test 4
Typical data performance tests were performed on the long-life synergistic compressor oil prepared in A3 at the french NYCO petroleum detection center, and the test results are shown in table 4:
TABLE 4
As can be seen from the test results in Table 4, the long-life synergistic compressor oil composition has the advantages of super-strong oxidation resistance, very little coking, inherent detergency, low volatility, good lubricating ability, good hydrolytic stability, air release and water separation, and is convenient for synergy, environmental protection, service life extension, cleanliness improvement, maintenance cost and downtime of a compressor, oil consumption reduction, air purification, better heat and abrasion reduction and better oil/oil and oil/air separation.
The invention has been described in an illustrative manner, and it is to be understood that the invention is not limited to the specific embodiments described above, but is intended to cover various modifications, which may be made by the methods and technical solutions of the invention, or may be applied to other applications without modification.
Claims (6)
1. The long-life synergistic compressor oil composition is characterized by comprising the following components in percentage by weight:
peroxide decomposer: 0.3-2.5%;
the friction oil improver comprises: 0.1 to 3.2 percent;
high-temperature antioxidant: 0.05 to 0.7 percent;
a finger sticking improver: 0.8 to 2.5 percent;
ashless detergent dispersant: 0.06-0.3%;
extreme pressure antiwear agent: 0.8 to 3.5 percent;
and (3) anti-foaming agent: 0.02-0.03%;
antirust agent: 0.5-1%;
demulsifying oil-water separating agent: 0.08 to 0.35 percent;
free radical inhibitors: 0.03-2.3%;
the rest is complemented by base oil with the well-prepared viscosity, and the base oil is branched chain new polyol ester base oil; the viscosity range of the prepared synthetic base oil is 41-48mm at 40 DEG C 2 /s；
The base oil is prepared by blending Nycobase8311 type base oil and Nycobase1040X type base oil, wherein the ratio of the Nycobase8311 type base oil to the Nycobase1040 type base oil is (1-1.5): (1.8-2.5);
the viscosity of the Nycobase8311 type base oil at 40 ℃ is 22.6mm 2 The viscosity of the Nycobase1040X type base oil at 40 ℃ is 94.1mm 2 /s；
The peroxide decomposer is one or more of sulfurized terpene, zinc dialkyl dithiophosphate, dialkyl monosulfide and sulfurized olefin;
the friction oiliness improver is one or more of poly linoleic acid, benzotriazole octadecylamine salt and sulfurized olefin cottonseed oil;
the high-temperature antioxidant is one or more of liquid high-molecular-weight phenol, 2, 6-di-tert-butyl-p-cresol, p' -diisooctyl diphenylamine and didodecyldiphenylamine;
the viscosity modifier is one or more of polymethacrylate, ethylene/propylene copolymer and hydrogenated styrene/diene copolymer;
the ashless detergent dispersant is one or more of single succinimide, double succinimide, polysuccinimide, succinate, boronized succinimide, ashless phosphonate and benzylamine;
the extreme pressure anti-wear agent is a hydrolysis-resistant boric acid ashless anti-wear agent.
2. The long life synergistic compressor oil composition as claimed in claim 1, wherein the anti-foaming agent is one or more of acrylate and silicone oil copolymer, acrylate and ether copolymer.
3. The long life synergistic compressor oil composition as set forth in claim 1, wherein said rust inhibitor is one or more of alkenyl succinic acid, octadecyl-N-oleoyl sarcosinate, imidazoline alkylphosphate.
4. The long-life synergistic compressor oil composition as set forth in claim 1, wherein said demulsifying oil-water separating agent is one or more of high-molecular polyether and propylene-oxide-diamine polycondensate.
5. The long life synergistic compressor oil composition of claim 1 wherein the free radical inhibitor is one or more of 2, 6-di-tert-butylphenol, 2, 6-di-tert-butyl-p-cresol, dialkyldiphenylamine, phenyl-alpha-naphthylamine, 2, 6-di-tert-butyl-alpha-dimethylamino-p-cresol.
6. The method for preparing the long-life synergistic compressor oil composition as claimed in any one of claims 1 to 5, characterized by comprising the following steps:
(1) The viscosity range of the required base oil is prepared into 41-48mm at 40 DEG C 2 /s；
(2) Putting the synthetic base oil obtained according to the percentage into a blending kettle, and stirring for 60-90min at 50-70 ℃;
(3) Adding the peroxide decomposer, the friction oiliness improver, the high-temperature antioxidant, the viscosity index improver, the ashless detergent dispersant, the extreme pressure antiwear agent, the antifoaming agent, the antirust agent, the demulsifying oil-water separating agent and the free radical inhibitor which are obtained according to the percentage into a mixing kettle, and stirring and mixing for 60-90min at 50-70 ℃.
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