CN116855301A - Oil composition for ionic liquid compressor and preparation method thereof - Google Patents
Oil composition for ionic liquid compressor and preparation method thereof Download PDFInfo
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- CN116855301A CN116855301A CN202310607375.3A CN202310607375A CN116855301A CN 116855301 A CN116855301 A CN 116855301A CN 202310607375 A CN202310607375 A CN 202310607375A CN 116855301 A CN116855301 A CN 116855301A
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- 239000002608 ionic liquid Substances 0.000 title claims abstract description 84
- 239000000203 mixture Substances 0.000 title claims abstract description 84
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000003921 oil Substances 0.000 claims abstract description 74
- 238000003756 stirring Methods 0.000 claims abstract description 37
- PQTAUFTUHHRKSS-UHFFFAOYSA-N 1-benzyl-2-methylbenzene Chemical group CC1=CC=CC=C1CC1=CC=CC=C1 PQTAUFTUHHRKSS-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000002216 antistatic agent Substances 0.000 claims abstract description 28
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 19
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 239000002199 base oil Substances 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000012360 testing method Methods 0.000 claims description 17
- -1 diaminopropyl Chemical group 0.000 claims description 14
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 claims description 11
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 11
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 11
- 229910052787 antimony Inorganic materials 0.000 claims description 8
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 8
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 8
- 239000013049 sediment Substances 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 6
- 238000000691 measurement method Methods 0.000 claims description 6
- QVXGKJYMVLJYCL-UHFFFAOYSA-N 2,3-di(nonyl)-N-phenylaniline Chemical compound C(CCCCCCCC)C=1C(=C(C=CC1)NC1=CC=CC=C1)CCCCCCCCC QVXGKJYMVLJYCL-UHFFFAOYSA-N 0.000 claims description 4
- 229910002651 NO3 Inorganic materials 0.000 claims description 4
- 229920002367 Polyisobutene Polymers 0.000 claims description 4
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 claims description 4
- 238000011056 performance test Methods 0.000 claims description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 3
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 3
- 229920000193 polymethacrylate Polymers 0.000 claims description 3
- VLCLHFYFMCKBRP-UHFFFAOYSA-N tricalcium;diborate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]B([O-])[O-].[O-]B([O-])[O-] VLCLHFYFMCKBRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract description 3
- 230000000996 additive effect Effects 0.000 abstract description 2
- 239000010687 lubricating oil Substances 0.000 abstract description 2
- 229920013639 polyalphaolefin Polymers 0.000 description 23
- 230000000052 comparative effect Effects 0.000 description 10
- 230000005611 electricity Effects 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 5
- 230000032683 aging Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000012990 dithiocarbamate Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- HFJHNGKIVAKCIW-UHFFFAOYSA-N Stearyl monoglyceridyl citrate Chemical compound OCC(O)CO.OC(=O)CC(O)(CC(O)=O)CC(O)=O.CCCCCCCCCCCCCCCCCC(O)=O HFJHNGKIVAKCIW-UHFFFAOYSA-N 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/06—Well-defined aromatic compounds
- C10M2203/065—Well-defined aromatic compounds used as base material
-
- 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/0206—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers used as base material
-
- 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/04—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
-
- 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/06—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing conjugated dienes
-
- 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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/06—Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
-
- 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
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/08—Resistance to extreme temperature
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/28—Anti-static
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/30—Refrigerators lubricants or compressors lubricants
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses an oil composition for an ionic liquid compressor and a preparation method thereof, and relates to the technical field of lubricating oil, wherein the composition comprises the following components in percentage by mass: 0.1 to 0.5 weight percent of extreme pressure antiwear agent, 0.1 to 0.3 weight percent of antistatic agent, 0.1 to 1.0 weight percent of viscosity index improver, 0.1 to 2.0 weight percent of antioxidant and the balance of composite base oil; wherein the composite base oil is a composition of monobenzyl toluene and PAO. The method for preparing the composition comprises the following steps: s1, sequentially adding an extreme pressure antiwear agent, an antistatic agent, a viscosity index improver and an antioxidant into monobenzyl toluene, and stirring to obtain a first mixture; s2, mixing the first mixture with PAO, and stirring to obtain the oil composition for the ionic liquid compressor. Due to the combined use of the antistatic agent and the composite base oil, the oil composition for the ionic liquid compressor provided by the invention has better antistatic performance and thermal stability under the condition of less consumption of each additive.
Description
Technical Field
The invention relates to the technical field of lubricating oil, in particular to an oil composition for an ionic liquid compressor and a preparation method thereof.
Background
The ionic liquid compressor is a device which uses ionic liquid as a liquid piston and compresses gas by driving the ionic liquid with oil through the ionic liquid compressor. Because the ionic liquid is hardly compressible and has almost no vapor pressure, the substitute metal piston can generate high pressure under isothermal condition, and can be used for a long time without maintenance, thereby saving energy consumption.
However, since the ionic liquid is an organic liquid composed of anions and cations, the ionic liquid has a certain polarity, static electricity generated in the working process of the ionic liquid compressor device can be conducted to the oil for the ionic liquid compressor, and the anti-static property of the oil for the general ionic liquid compressor is poor, so that the aggregation of charges is easy to be caused, and after the charges are aggregated to a certain degree, hidden danger can be caused for the normal operation of the device. Meanwhile, when the ionic liquid compressor works, a large amount of heat energy can be generated by compressed gas, so that oil for the ionic liquid compressor is in a high-temperature environment during working, rapid aging is caused, sediment is generated, and the normal working of the ionic liquid compressor is influenced.
Therefore, there is a need to develop an oil for an ionic liquid compressor with better antistatic property and thermal stability and a preparation method thereof to solve the above problems.
Disclosure of Invention
The invention aims to provide an oil composition for an ionic liquid compressor and a preparation method thereof, and the oil composition for the ionic liquid compressor has good antistatic performance and thermal stability.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
an oil composition for an ionic liquid compressor, the components of the composition comprising, in mass fraction: 0.1 to 0.5 weight percent of extreme pressure antiwear agent, 0.1 to 0.3 weight percent of antistatic agent, 0.1 to 1.0 weight percent of viscosity index improver, 0.1 to 2.0 weight percent of antioxidant and the balance of composite base oil; wherein the composite base oil is a composition of monobenzyl toluene and PAO.
Preferably, the content of the monobenzyl toluene is 10-15 wt%.
Preferably, at a temperature of 40 DEG CThe kinematic viscosity of the monobenzyl toluene is 1.5-4 mm 2 S, the pour point is-50 to-55 ℃; the kinematic viscosity of the PAO is 60-70 mm at 40 DEG C 2 And/s, the pour point is-40 to-50 ℃.
Preferably, the antistatic agent is contained in an amount of 0.15 to 0.2wt%.
Preferably, the content of the extreme pressure antiwear agent is 0.2-0.4 wt%, the content of the viscosity index improver is 0.3-0.8 wt%, and the content of the antioxidant is 0.5-1.5 wt%.
Preferably, the extreme pressure antiwear agent comprises at least one of dialkyl dithiocarbamate antimony oil solution, tricresyl phosphate and calcium borate; the antistatic agent comprises at least one of octadecylamine polyoxyethylene ether, octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate and diaminopropyl polydimethylsiloxane; the viscosity index improver comprises at least one of a styrene-butadiene copolymer, polyisobutylene and polymethacrylate; the antioxidant comprises at least one of tolyltriazole ester solution, dinonyl diphenylamine and alkylated diphenylamine.
Preferably, conducting conductivity test on the oil composition for the ionic liquid compressor according to an aviation fuel and distillate fuel conductivity measurement method, wherein the test result shows that the conductivity is 350-450 ps/m under the condition of 20 ℃;
and (3) performing thermal stability performance test on the oil composition for the ionic liquid compressor according to a hydraulic oil thermal stability measurement method, wherein the test result shows that the total sediment is 20-70 mg/100ml under the test condition that the temperature is 180 ℃ and the time is 168 hours.
The invention also provides a preparation method of the oil composition for the ionic liquid compressor, which comprises the following steps:
s1, under a first stirring condition, sequentially adding the extreme pressure antiwear agent, the antistatic agent, the viscosity index improver and the antioxidant into the monobenzyl toluene, and continuously stirring for 2-3 hours to obtain a first mixture; wherein the first stirring conditions include: the rotating speed is 1000-1500 rpm, and the temperature is 40-50 ℃;
s2, mixing the first mixture with PAO in a use amount under a second stirring condition, and continuously stirring for 1-1.5 h to obtain the oil composition for the ionic liquid compressor; wherein the second stirring conditions include: the rotation speed is 1200-1800 rpm, and the temperature is 50-60 ℃.
Preferably, the method further comprises: adding the antistatic agent into the PAO in the using amount under the third stirring condition, and continuing stirring for 2.5-3.5 h to obtain a second mixture, wherein the second mixture is mixed with the first mixture in the step S2; wherein the third stirring condition comprises: the rotation speed is 500-700 rpm, and the temperature is 60-70 ℃.
The invention has the beneficial effects that:
the oil composition for the ionic liquid compressor contains the extreme pressure antiwear agent, the antistatic agent, the viscosity index improver, the antioxidant and the composite base oil prepared by compounding the monobenzyl toluene and the PAO, and the antistatic agent is added into the oil for the ionic liquid compressor to improve the conductivity of the oil for the ionic liquid compressor, so that the influence of static electricity on the ionic liquid compressor is reduced, and the antistatic performance of the ionic liquid compressor can be improved to a certain extent;
due to the combined use of the antistatic agent, the antioxidant and the composite base oil, the oil composition for the ionic liquid compressor has good antistatic performance and good thermal stability, so that the oil composition for the ionic liquid compressor has good antistatic performance and thermal stability for the ionic liquid compressor equipment, hidden danger of static electricity on normal operation of the equipment is avoided, and excessive sediment generated by rapid aging of the oil for the ionic liquid compressor during operation is avoided, thereby influencing the normal operation of the ionic liquid compressor.
Detailed Description
For a better understanding of the present invention, those skilled in the art will now make a clear and complete description of the present invention in conjunction with the specific embodiments described, it being evident that the embodiments described are only some, but not all, of the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides an oil composition for an ionic liquid compressor, which comprises the following components in percentage by mass: 0.1 to 0.5 weight percent of extreme pressure antiwear agent, 0.1 to 0.3 weight percent of antistatic agent, 0.1 to 1.0 weight percent of viscosity index improver, 0.1 to 2.0 weight percent of antioxidant and the balance of composite base oil; wherein the composite base oil is a combination of monobenzyl toluene and PAO (i.e. polyalphaolefin).
Specifically, the oil composition for the ionic liquid compressor contains an extreme pressure antiwear agent, an antistatic agent, a viscosity index improver, an antioxidant and composite base oil obtained by compounding monobenzyl toluene and PAO, and the addition amounts of the components can be changed within a certain range.
In this scheme, the addition amount of the antistatic agent can be changed within a certain range, and the content is preferably 0.15-0.2 wt%; specifically, in the process of compressing gas, the ionic liquid and the inner wall of the device are rubbed, and the compressed gas and the inner wall of the device are rubbed, so that static electricity is generated, and the generated static electricity is transferred to the oil for the ionic liquid compressor through the ionic liquid or the device, therefore, the scheme adds the antistatic agent into the oil for the ionic liquid compressor, and improves the conductivity of the oil for the ionic liquid compressor, thereby reducing the influence of static electricity on the ionic liquid compressor, and improving the antistatic performance of the ionic liquid compressor to a certain extent.
In the scheme, the preferable extreme pressure antiwear agent content is 0.2-0.4 wt%, the viscosity index improver content is 0.3-0.8 wt% and the antioxidant content is 0.5-1.5 wt%, so that the oil composition for the ionic liquid compressor has better antistatic performance and thermal stability performance.
In this embodiment, the ratio of the amounts of the monobenzyl toluene and the PAO may be varied within a certain range, for example, the amount of the monobenzyl toluene is 10 to 15wt%, more preferably 7 to 9wt%, and the balance PAO is the balance excluding the additives and the monobenzyl toluene.
In the scheme, in order to further improve the service performance of the oil composition for the ionic liquid compressor, the performance of the monobenzyl toluene and the PAO can be further screened, and the kinematic viscosity of the monobenzyl toluene is preferably 1.5-4 mm at the temperature of 40 DEG C 2 S, the pour point is-50 to-55 ℃; preferably, the kinematic viscosity of the PAO is 60-70 mm at 40 DEG C 2 And/s, the pour point is-40 to-50 ℃.
In the scheme, each additive can be selected within a certain range, and the extreme pressure antiwear agent comprises at least one of dialkyl dithiocarbamic acid antimony oil solution, tricresyl phosphate and calcium borate; the antistatic agent comprises at least one of octadecylamine polyoxyethylene ether, octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate and diaminopropyl polydimethylsiloxane; the viscosity index improver comprises at least one of a styrene-butadiene copolymer, polyisobutylene and polymethacrylate; the antioxidant comprises at least one of tolyltriazole ester solution, dinonyl diphenylamine and alkylated diphenylamine.
Preferably, the extreme pressure antiwear agent is an antimony dialkyl dithiocarbamate oil solution, the antistatic agent is octadecylamine polyoxyethylene ether, the viscosity index improver is a styrene-butadiene copolymer, and the antioxidant is a tolyltriazole ester solution, so that under the preferred condition, the antistatic performance and the thermal stability of the oil composition for the ionic liquid compressor are further improved. Specifically, when the antistatic agent is octadecylamine polyoxyethylene ether, the compatibility of the octadecylamine polyoxyethylene ether and other components in the oil composition for the ionic liquid compressor is good, and the influence of the octadecylamine polyoxyethylene ether on the overall antistatic performance and the thermal stability of the oil composition for the ionic liquid compressor is small, so that the oil composition for the ionic liquid compressor in the scheme has good antistatic performance and thermal stability.
In the scheme, the oil composition for the ionic liquid compressor is subjected to conductivity test according to an aviation fuel and distillate fuel conductivity measurement method (namely GB/T6539), and the test result shows that the conductivity is 350-450 ps/m under the condition that the temperature is 20 ℃; the oil composition for the ionic liquid compressor is subjected to thermal stability performance test according to a hydraulic oil thermal stability measurement method (namely SH/T0209), and the test result shows that the total sediment is 20-70 mg/100ml under the test condition that the temperature is 180 ℃ and the time is 168 hours.
The invention also provides a preparation method of the oil composition for the ionic liquid compressor, which comprises the following steps:
s1, under a first stirring condition, sequentially adding the extreme pressure antiwear agent, the antistatic agent, the viscosity index improver and the antioxidant into the monobenzyl toluene, and continuously stirring for 2-3 hours to obtain a first mixture; wherein the first stirring conditions include: the rotating speed is 1000-1500 rpm, and the temperature is 40-50 ℃;
s2, mixing the first mixture with PAO in a use amount under a second stirring condition, and continuously stirring for 1-1.5 h to obtain the oil composition for the ionic liquid compressor; wherein the second stirring conditions include: the rotation speed is 1200-1800 rpm, and the temperature is 50-60 ℃.
The method of the scheme further comprises the following steps: under the third stirring condition, adding the antistatic agent with the usage amount into the PAO with the usage amount, and continuing stirring for 2.5-3.5 h to obtain a second mixture, wherein the second mixture is mixed with the first mixture in the step S2; wherein the third stirring condition comprises: the rotation speed is 500-700 rpm, and the temperature is 60-70 ℃.
The method provided by the scheme has the advantages of simplicity and easiness in control.
The materials, reagents, instruments and equipment involved in the schemes of the invention, unless otherwise specified, are all available commercially.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Example 1
The oil composition for the ionic liquid compressor of the embodiment comprises the following components in percentage by mass: 0.3wt% of a dialkyldithiocarbamic acidAn antimony oil solution, 0.16wt% of octadecylamine polyoxyethylene ether, 0.5wt% of a styrene-butadiene copolymer, 1.0wt% of a tolyltriazole ester solution, 8wt% of monobenzyl toluene and 90.04wt% of PAO; wherein the kinematic viscosity of the monobenzyl toluene is 2.5mm 2 S, pour point of-53 ℃, kinematic viscosity of PAO of 66mm 2 And/s, pour point of-45 ℃.
The oil composition for an ionic liquid compressor of this example was prepared as follows:
s1, adding 3g of dialkyl dithiocarbamic acid antimony oil solution, 1.6g of octadecylamine polyoxyethylene ether, 5g of styrene-butadiene copolymer and 10g of toluene triazole ester solution into 80g of monobenzyl toluene in sequence under the stirring condition of 1200rpm and 45 ℃ and continuing stirring for 2.5 hours to obtain a first mixture;
s2, adding the first mixture into 900.4g of PAO under the stirring condition of 1500rpm and 55 ℃, and continuously stirring for 1.25h to obtain the oil composition for the ionic liquid compressor of the embodiment.
Example 2
The oil composition for the ionic liquid compressor of the embodiment comprises the following components in percentage by mass: 0.15wt% antimony dialkyldithiocarbamate oil solution, 0.1wt% octadecylamine polyoxyethylene ether, 0.3wt% styrene-butadiene copolymer, 0.5wt% tolyltriazole ester solution, 7wt% monobenzyl toluene and 91.95wt% PAO; wherein the kinematic viscosity of the monobenzyl toluene is 2.5mm 2 S, pour point of-53 ℃, kinematic viscosity of PAO of 66mm 2 And/s, pour point of-45 ℃.
The oil composition for an ionic liquid compressor of this example was prepared as follows:
s1, under the stirring condition of 1200rpm and 45 ℃, sequentially adding 1.5g of dialkyl dithiocarbamic acid antimony oil solution, 1g of octadecylamine polyoxyethylene ether, 3g of styrene-butadiene copolymer and 5g of toluene triazole ester solution into 70g of monobenzyl toluene, and continuing stirring for 2.5 hours to obtain a first mixture;
s2, adding the first mixture into 919.5g of PAO under the stirring condition of 1500rpm and 55 ℃, and continuously stirring for 1.25h to obtain the oil composition for the ionic liquid compressor of the embodiment.
Example 3
The difference between this embodiment and embodiment 1 is only that: the extreme pressure antiwear agent is tricresyl phosphate, the antistatic agent is octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate, the viscosity index improver is polyisobutene, the antioxidant is dinonyl diphenylamine, and the kinematic viscosity of monobenzyl toluene is 2.1mm 2 S, pour point of-50 ℃, kinematic viscosity of PAO of 61.5mm 2 And/s, pour point of-41 ℃.
Comparative example 1
The oil composition for an ionic liquid compressor of this comparative example was prepared as in example 1, except that: the comparative example does not contain an antistatic agent.
Comparative example 2
The oil composition for an ionic liquid compressor of this comparative example was prepared as in example 1, except that: in this comparative example, the monobenzyl toluene of example 1 was replaced with an equal amount of PAO.
Comparative example 3
The oil composition for an ionic liquid compressor of this comparative example was prepared as in example 1, except that: in this comparative example, the PAO in example 1 was replaced with an equal amount of monobenzyl toluene.
Test case
The following tests were conducted on the oil compositions for ionic liquid compressors prepared in examples 1 to 3 and comparative examples 1 to 3, respectively:
(1) The conductivity of each oil composition for an ionic liquid compressor was tested according to the GB/T6539 method and the conductivity of each oil composition for an ionic liquid compressor was recorded. The test results showed conductivities of 350-450 ps/m.
(2) And (3) performing thermal stability performance test on the oil composition for each ionic liquid compressor according to an SH/T0209 method, wherein the test temperature is 180 ℃ and the time is 168 hours, and recording the total sediment of the oil composition for each ionic liquid compressor. The test result shows that the total sediment is 20-70 mg/100ml.
The oil compositions for the ionic liquid compressors of each group were tested in 10 parts each, and the average value was calculated, and the results are shown in Table 1.
TABLE 1
As can be seen from Table 1, the oil composition for the ionic liquid compressor provided by the invention has better heat stability, and meanwhile, has better antistatic performance after the antistatic agent is added.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. An oil composition for an ionic liquid compressor, characterized in that the components of the composition comprise, in mass fraction:
0.1 to 0.5 weight percent of extreme pressure antiwear agent, 0.1 to 0.3 weight percent of antistatic agent, 0.1 to 1.0 weight percent of viscosity index improver, 0.1 to 2.0 weight percent of antioxidant and the balance of composite base oil;
wherein the composite base oil is a composition of monobenzyl toluene and PAO.
2. An oil composition for an ionic liquid compressor as claimed in claim 1, wherein the content of the monobenzyl toluene is 10 to 15wt%.
3. An oil composition for an ionic liquid compressor according to claim 1, wherein the kinematic viscosity of the monobenzyl toluene is 1.5-4 mm at a temperature of 40 °c 2 S, the pour point is-50 to-55 ℃; at the position ofThe kinematic viscosity of the PAO is 60-70 mm at 40 DEG C 2 And/s, the pour point is-40 to-50 ℃.
4. An oil composition for an ionic liquid compressor according to claim 1, wherein the content of the antistatic agent is 0.15 to 0.2wt%.
5. The oil composition for an ionic liquid compressor according to claim 1, wherein the content of the extreme pressure antiwear agent is 0.2 to 0.4wt%, the content of the viscosity index improver is 0.3 to 0.8wt%, and the content of the antioxidant is 0.5 to 1.5wt%.
6. The oil composition for an ionic liquid compressor according to claim 1, wherein the extreme pressure antiwear agent comprises at least one of an antimony dialkyldithiocarbamate oil solution, tricresyl phosphate and calcium borate;
the antistatic agent comprises at least one of octadecylamine polyoxyethylene ether, octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate and diaminopropyl polydimethylsiloxane;
the viscosity index improver comprises at least one of a styrene-butadiene copolymer, polyisobutylene and polymethacrylate;
the antioxidant comprises at least one of tolyltriazole ester solution, dinonyl diphenylamine and alkylated diphenylamine.
7. An oil composition for an ionic liquid compressor according to claims 1-6, wherein the oil composition for an ionic liquid compressor is subjected to a conductivity test according to an aviation fuel and distillate fuel conductivity measurement method, and the test result shows that the conductivity is 350-450 ps/m at 20 ℃;
and (3) performing thermal stability performance test on the oil composition for the ionic liquid compressor according to a hydraulic oil thermal stability measurement method, wherein the test result shows that the total sediment is 20-70 mg/100ml under the test condition that the temperature is 180 ℃ and the time is 168 hours.
8. A method for producing an oil composition for an ionic liquid compressor according to any one of claims 1 to 6, comprising the steps of:
s1, under a first stirring condition, sequentially adding the extreme pressure antiwear agent, the antistatic agent, the viscosity index improver and the antioxidant into the monobenzyl toluene, and continuously stirring for 2-3 hours to obtain a first mixture; wherein the first stirring conditions include: the rotating speed is 1000-1500 rpm, and the temperature is 40-50 ℃;
s2, mixing the first mixture with PAO in a use amount under a second stirring condition, and continuously stirring for 1-1.5 h to obtain the oil composition for the ionic liquid compressor; wherein the second stirring conditions include: the rotation speed is 1200-1800 rpm, and the temperature is 50-60 ℃.
9. The method for preparing an oil composition for an ionic liquid compressor according to claim 8, wherein the method further comprises:
adding the antistatic agent into the PAO in the using amount under the third stirring condition, and continuing stirring for 2.5-3.5 h to obtain a second mixture, wherein the second mixture is mixed with the first mixture in the step S2; wherein the third stirring condition comprises: the rotation speed is 500-700 rpm, and the temperature is 60-70 ℃.
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| CN202310607375.3A CN116855301A (en) | 2023-05-26 | 2023-05-26 | Oil composition for ionic liquid compressor and preparation method thereof |
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| CN202310607375.3A CN116855301A (en) | 2023-05-26 | 2023-05-26 | Oil composition for ionic liquid compressor and preparation method thereof |
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