CN111690457A - Synthetic environment-friendly refrigerator oil - Google Patents
Synthetic environment-friendly refrigerator oil Download PDFInfo
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- CN111690457A CN111690457A CN202010652131.3A CN202010652131A CN111690457A CN 111690457 A CN111690457 A CN 111690457A CN 202010652131 A CN202010652131 A CN 202010652131A CN 111690457 A CN111690457 A CN 111690457A
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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
- C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/16—Naphthenic acids
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
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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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- 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
- C10M2215/06—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
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
- C10M2219/106—Thiadiazoles
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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
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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
- C10M2223/041—Triaryl phosphates
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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
- C10M2223/06—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds
- C10M2223/065—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds containing sulfur
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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
- C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
Abstract
The invention relates to a synthetic environment-friendly refrigerator oil, which belongs to the field of lubricating oil and is characterized in that the components of the synthetic environment-friendly refrigerator oil comprise base oil, an extreme pressure antiwear agent, an antioxidant, a defoaming agent, a metal antirust agent and a metal deactivator, wherein the base oil is a mixture of API V synthetic ether base oil and API V synthetic ester base oil; the invention integrates the advantages and the disadvantages of two types of V-type base oil, selects the base oil mixed by polyether and polyester base oil, has synergistic interaction of the polyether and the polyester base oil, has better lubricating property, low carbon deposition tendency property, high-temperature oxidation resistance and other properties compared with single type of synthetic oil, enhances the extreme pressure and wear resistance of oil products, can provide safer protection for equipment, has excellent comprehensive performance, and can completely meet the operation requirement of modern refrigerator devices.
Description
Technical Field
The invention relates to the field of special lubricating oil for synthetic environment-friendly refrigeration type compression devices, in particular to synthetic environment-friendly refrigerator oil for a refrigerator compression device using environment-friendly refrigerants (such as HFC).
Background
In recent years, continuous development of intelligent household appliances is driven by continuous updating of internet technology, household appliances such as air conditioners and refrigerators gradually develop towards intellectualization and light weight, the market continuously tests innovation of household appliance fields in China and simultaneously provides challenges for development of refrigeration type compression devices in China, and the refrigeration industry faces phenomena such as energy conservation, emission reduction and refrigerant replacement while the social subjects such as energy conservation and environmental protection are continuously deepened in China.
With the continual renewal of environmental regulations, refrigerant migration has also gone through multiple stages. The initial fluorochlorohydrocarbon and fluorochlorohydrocarbon refrigerant is widely used in refrigeration industry because of its excellent chemical stability, low toxicity, no combustion and other features. However, research in 1974 of professor rowland in the united states shows that the chlorofluorocarbon refrigerant is not easily decomposed in the air after being leaked in the use process, is easily enriched in the atmosphere, and can decompose chlorine radicals under the action of ultraviolet rays when entering an atmosphere stratosphere to damage an ozone layer, thereby causing irreversible loss to the environment and human health. The Montreal conference signed the Montreal agreement on ozone depleting substances in 1987, after which the law on chlorofluorocarbons was strengthened through several modifications, which made it clear that chlorofluorocarbons and hydrochlorofluorocarbons were completely eliminated in principle in 2020. China, which synthesizes domestic industrial situation and international environmental protection laws, approves national scheme for gradually eliminating ozone layer depletion substances in China in 1999, makes clear regulations for various enterprises in the refrigeration industry, and relates to industries comprising: industrial and commercial refrigeration industry, household appliance industry, automobile air conditioning industry and the like. With the international elimination of chlorofluorocarbon and hydrochlorofluorocarbon refrigerants, chlorine-free hydrofluorocarbons have attracted attention, and mixed refrigerants comprising 2-3 types of hydrofluorocarbons, such as R134a and R410a, have been developed through continued research and practice.
The gradual popularization of the environment-friendly refrigerant brings about the adjustment of refrigeration equipment and the technical innovation of the refrigerator oil. The traditional mineral refrigerator oil shows insolubility when facing a new green environment-friendly refrigerant, in view of the difference of a refrigeration compressor and a common compressor, the refrigerator oil has better intersolubility with the refrigerant, and is sprayed to a lubricating point together with the refrigerant in the using process for lubrication. The current international synthetic environment-friendly refrigerator oil mainly comprises two categories: AG (polyethers) and OE (polyol ester), the production companies of which mainly include Fuchs, Mobil, Carstrol, etc.
In order to adapt to continuous replacement of international refrigerants and industrial development of refrigeration compression equipment, research and development work for synthesizing environment-friendly refrigerating machine oil is started by various lubricating oil research and production manufacturers in China, in order to standardize the market of refrigerating machine oil in China, the national standard GB/T16630-.
At present, the high-performance synthetic environment-friendly refrigerator oil still mainly depends on import, and monopolizes the domestic high-end synthetic environment-friendly refrigerator oil market. The domestic market is mainly occupied by two manufacturers of great wall and Kunlun for a long time, for domestic small and medium-sized related enterprises of refrigeration, the selection surface for synthesizing the environment-friendly refrigerator oil is relatively narrow, similar products are high, and the sustainable development of the refrigeration industry of China and the development of related lubricating oil enterprises are not facilitated, so that the development of the synthesized environment-friendly refrigerator oil which has the advantages of good compatibility with the environment-friendly refrigerant, good low-temperature lubricity, good chemical stability and long service life is particularly necessary.
The refrigerating machine oil has the functions of lubrication, sealing, rust prevention, heat removal and the like in the refrigerating compressor device, lubricates a bearing, a compressor main body and a control system respectively, and is mixed with a refrigerant. In the actual use process, the refrigerating machine oil can work under the conditions that the refrigerating machine oil is in direct contact with a refrigerant, a small amount of the refrigerating machine oil can be substituted into a refrigerating pipeline to participate in a refrigerating cycle, is in contact with organic materials such as a motor sealing ring and the like, and is extremely low in temperature. Therefore, the development of the novel synthetic refrigerator oil should have the following performance indexes:
(1) viscosity and viscosity-temperature characteristics: the proper viscosity can ensure that the compressor always keeps a lubricating state in work, reduce abrasion and reduce energy consumption. The viscosity is too low, and the proper oil film thickness is difficult to form; too high a viscosity will increase the kinetic energy loss of the equipment. The lubricating oil has good viscosity-temperature performance, can still maintain proper viscosity under the condition of large temperature difference, and ensures good lubricity and fluidity.
(2) Thermochemical stability: when the refrigerator oil and the refrigerant coexist, a certain chemical reaction can be generated under the high-temperature condition and the metal catalysis effect to generate products such as acid, oil sludge and the like, so that the service life and the refrigeration efficiency of the oil product are influenced, and the system blockage, the material damage and the like can be caused in serious cases. The good thermochemical stability can prolong the service life of oil products, reduce the energy loss of equipment in the operation process, improve the refrigeration efficiency, reduce the cleaning times of the equipment and the like.
(3) Low temperature performance: the refrigerating machine oil is mixed with the refrigerant, part of the refrigerant even participates in the refrigerating cycle, and under the low-temperature condition, the oil product is required to have good low-temperature fluidity, so that the lubricating effect on equipment is ensured.
(4) Moisture content: the water content of the refrigerator oil is extremely strict. Because the environment temperature of the working of the refrigerating machine oil is low, the ice plug phenomenon or the flocculate of oil products can be generated in the throttling device due to the existence of a small amount of moisture, and the use of the product is influenced.
(5) Long-life work: the excellent performance of the synthetic environment-friendly refrigerator oil reduces the problems caused by the quality of oil products in the using process, greatly prolongs the service life and reduces the loss caused by oil change and the like.
(6) Energy conservation and consumption reduction: the improvement of the refrigerator oil is continuously carried out, and the development is towards energy conservation and environmental protection.
Therefore, the research and development of synthetic environment-friendly refrigerating machine oil with better thermochemical stability, longer service life and excellent low-temperature performance are urgently needed to overcome the defects of the existing mineral refrigerating machine oil and meet the requirements of the development of refrigerating compressor equipment in the refrigeration industry.
Disclosure of Invention
The invention aims to solve the technical problem of disclosing synthetic environment-friendly refrigerator oil, aiming at overcoming the defects of the existing refrigerator oil and meeting the development requirements of related fields.
The technical scheme for solving the technical problems is as follows: the synthetic environment-friendly refrigerator oil is characterized by comprising the components of base oil, an extreme pressure antiwear agent, an antioxidant, a defoaming agent, a metal antirust agent and a metal deactivator, wherein the base oil is a mixture of API V synthetic ether base oil and API V synthetic ester base oil; specifically, it consists of a mixture of synthetic ether base oils, synthetic ester base oils of different viscosity ranges; more specifically, the API V PAG synthetic ether base oil is selected from at least one of propylene oxide homopolymer and ethylene oxide/propylene oxide random homopolymer with different viscosity ranges at 40 ℃, and the API V synthetic ester base oil is selected from at least one of polyol ester, trimethylolpropane fatty acid ester and diisotridecyl adipate with different viscosity ranges at 40 ℃.
Furthermore, the extreme pressure antiwear agent is a phosphorus-containing type or sulfur-phosphorus type extreme pressure antiwear agent.
Furthermore, the extreme pressure antiwear agent adopts at least one of triethyl phosphate, triphenyl phosphate, tricresyl phosphate and nitrogen-containing derivatives of phosphoric acid.
Furthermore, the antioxidant is at least one of 2, 6-di-tert-butyl-p-cresol, 2, 6-di-tert-butyl mixed phenol, 4-methylene bis (2, 6-di-tert-butyl phenol), N-phenyl-aniline, p-tert-butyl phenol, butyl/octyl diphenylamine and zinc butyl octyl dithiophosphate.
Further, the defoaming agent is at least one of methyl silicone oil type, polymethacrylate type or composite defoaming agent.
Further, the total weight of the environment-friendly refrigerator oil is 100%, the content of the extreme pressure antiwear agent is 0.5-1.5%, the content of the antioxidant is 0.1-1.0%, and the content of the defoaming agent is 5-20 ppm.
Further, the metal antirust agent adopts at least one of barium dinonyl naphthalene sulfonate, alkenyl succinate, zinc naphthenate and barium petroleum sulfonate.
Further, the content of the metal antirust agent is 0.02-1.0% by taking the total weight of the synthetic environment-friendly refrigerator oil as 100%.
Further, the metal deactivator is at least one of benzotriazole and its derivatives, thiadiazole and its derivatives.
Further, the content of the metal deactivator is 0.03-0.1% based on the total weight of the synthetic environment-friendly refrigerator oil as 100%.
The preparation method of the synthetic environment-friendly refrigerator oil adopts a physical blending method, and according to the viscosity grade of lubricating oil, base oil is added into a blending kettle with a stirrer according to different proportions and is blended into the base oil under the temperature of 50-70 ℃, and on the basis, additive components are added for blending to obtain the synthetic environment-friendly refrigerator oil.
The invention relates to ester and ether synthetic base oil, wherein the ester base oil has better polarity, can be adsorbed on the surface of metal to provide better lubricating property, can provide better protection for metal devices, has better high and low temperature resistance and excellent wear resistance, is widely favored, but shows instability when meeting water; the invention integrates the advantages and disadvantages of two types of V base oil, selects the base oil mixed by polyether and polyester base oil, and the two types of base oil have synergistic interaction, and has better lubricating property, low carbon deposition tendency, high temperature oxidation resistance and other properties compared with single type of synthetic oil.
In products provided by a plurality of home and abroad ester and ether suppliers, 6 synthetic base oils are preferably selected, and the problems of solubility among the base oils, intersolubility between the additive and the ether base oil and the like are solved through different combination proportioning experiments.
The synthetic environment-friendly refrigerator oil disclosed by the invention can be suitable for various refrigeration type compression devices. Experimental data show that the synthetic environment-friendly refrigerator oil provided by the invention synthesizes base oil by selecting ethers and esters with proper proportion, integrates the performance advantages of the two types of base oil, and improves the lubricating performance of oil products. The invention enhances the extreme pressure and wear resistance of the oil product and can provide safer protection for equipment. The invention selects the antioxidant with excellent performance, enhances the antioxidant and anticorrosive capability, avoids the reduction of the product life caused by oxidation and prolongs the service life of the product. The product of the invention has no carbon deposition tendency, can effectively avoid coking and carbon deposition in use, and ensures clean operation of equipment. The product of the invention has the advantages of better high-temperature oxidation resistance, better low-temperature performance and better anti-foaming performance, especially more excellent extreme pressure wear resistance and longer service life. Thus, the product of the invention has excellent comprehensive performance and can completely meet the operation requirement of modern refrigerator devices.
Detailed Description
The synthetic environment-friendly refrigerator oil is prepared by firstly blending the lubricating oil base oil, adding the mixture of polyether and polyester synthetic base oil into a blending kettle with stirring and heating functions, stirring for 1-3 hours at 50-70 ℃ to blend the mixture into the lubricating oil base oil, and then adding other components to blend.
Example 1
Firstly, the base oil of the synthetic environment-friendly refrigerator oil is prepared. Adding 50 percent of PAG ether (propylene oxide homopolymer) base oil with kinematic viscosity of 46 rics at 40 ℃ and 50 percent of trimethylolpropane fatty acid ester base oil with kinematic viscosity of 46 rics at 40 ℃ into a blending kettle with stirring and heating functions, stirring for 3 hours at 50 ℃ to blend into lubricating oil base oil, and blending the additive components according to the following ratio:
tricresyl phosphate 0.5%
0.1 percent of 2, 6-di-tert-butyl mixed phenol
Methyl silicone oil type defoaming agent 5ppm
Alkenyl succinate 0.02%
Benzotriazole derivative 0.03%
Example 2
Firstly, the base oil of the synthetic environment-friendly refrigerator oil is prepared. Adding 46 percent of PAG ether (ethylene oxide/propylene oxide random copolymer) base oil with kinematic viscosity of 133 rics at 40 ℃ and 54 percent of polyol ester base oil with kinematic viscosity of 19 rics at 40 ℃ into a blending kettle with stirring and heating functions, stirring for 2h at 60 ℃ to blend into lubricating oil base oil, and blending the additive components according to the following ratio:
1.0 percent of triethyl phosphate
0.5 percent of p-tert-butylphenol
Polymethacrylate defoaming agent 15ppm
Alkenyl succinate 0.5%
Thiadiazole derivative 0.06%
Example 3
Firstly, the base oil of the synthetic environment-friendly refrigerator oil is prepared. Adding 52 percent of PAG ether (propylene oxide homopolymer) base oil with kinematic viscosity of 76 rics at 40 ℃ and 48 percent of diisotridecyl adipate base oil with kinematic viscosity of 26.7 rics at 40 ℃ into a blending kettle with stirring and heating functions, stirring for 1 hour at 70 ℃ to blend into lubricating oil base oil, and blending the additive components according to the following mixture ratio:
1.5 percent of triphenyl phosphate
2, 6-di-tert-butyl-p-cresol 1.0%
20ppm of composite defoaming agent
1.0 percent of petroleum barium sulfonate
0.1 percent of benzotriazole derivative
The performance tests of examples 1-3 and commercial refrigerator oils were carried out, and the test results and performance standards are shown in Table 1.
TABLE 1 evaluation results of the main properties of synthetic environmental-friendly refrigerator oils in examples 1 to 3 and commercially available refrigerator oils
| Analysis project | Unit of | Commercial refrigerator oil | Example 1 | Example 2 | Example 3 | Test method |
| Kinematic viscosity (40 ℃ C.) | mm2/s | 45.7 | 46.0 | 46.7 | 46.4 | GB/T265 |
| Viscosity index | / | 104 | 169 | 182 | 174 | GB/T1995 |
| Flash point (open) | ℃ | 224 | 251 | 258 | 249 | GB/T3536 |
| Pour point | ℃ | -33 | -43 | -46 | -44 | GB/T3535 |
| Mechanical impurities | ％ | Is free of | Is free of | Is free of | Is free of | GB/T511 |
| Acid value | mgKOH/g | 0.08 | 0.05 | 0.06 | 0.06 | GB/T7304 |
| Abrasion spots | mm | 0.44 | 0.40 | 0.39 | 0.41 | SH/T0189 |
The performance evaluation data in table 1 shows that the synthetic eco-friendly refrigerator oil provided in the examples of the present application is superior to the commercially available refrigerator oil in all aspects. Firstly, the viscosity-temperature performance has remarkable advantages, and the viscosity index of the compressor oil composition provided by the application is about 70 higher than that of the existing similar products sold in the market, the influence of temperature change on the viscosity of an oil product is small, and the quality of the oil product is more stable in the using process; secondly, the synthetic environment-friendly refrigerator oil provided by the embodiment of the application has good high and low temperature resistance, the flash point is about 20 ℃ higher than that of the existing commercial refrigerator oil, the pour point is 10-13 ℃ lower than that of the commercial like products, and the performance of the oil product can be maintained under the condition of extreme environmental temperature; by analyzing the acid value data of the oil product, the synthetic environment-friendly refrigerator oil provided by the embodiment of the application has a lower acid value, and the acid value is 0.02-0.03 mgKOH/g lower than that of similar products sold in the market; according to the four-ball experiment, compared with the existing engine oil, the synthetic environment-friendly refrigerator oil provided by the embodiment of the application has smaller diameter of wear spots, can reduce the loss of a machine in the actual use process, and prolongs the service life of equipment. The synthetic environment-friendly refrigerating machine oil provided by the embodiment of the application has long service life in practical application, is integrally packaged along with equipment, meets the requirement of not changing oil for the whole life, and greatly reduces the cost in the aspects of manpower, material resources and the like caused by oil change.
Compared with the common mineral type refrigerating machine oil, the base oil selected by the invention has high compatibility with the existing environment-friendly refrigerant, and is suitable for various refrigeration type compression devices; compared with the commercial synthetic refrigerator oil, the synthetic refrigerator oil comprehensively considers the advantages and the disadvantages of ester and ether base oil, has synergistic effect, and has better lubricating property, low carbon deposition tendency, high-temperature oxidation resistance and the like compared with single synthetic oil; the viscosity-temperature performance of the oil product is greatly improved, the low-temperature lubricating performance of the oil product is enhanced, and the running requirement of equipment under high load can be ensured; the metal deactivator and the antirust agent with complementary performance advantages are selected, so that the oxidation resistance and corrosion resistance are enhanced, and the metal protection performance of the oil product is improved; by screening the antioxidant with proper proportion, the antioxidant performance of the oil product is improved, and the service life is greatly prolonged. Meanwhile, the product of the invention also has good low-temperature performance, water separating performance and anti-foaming performance, energy saving and consumption reduction are obvious, and the running cost is greatly reduced, so that the product of the invention has excellent comprehensive performance and can completely meet the running requirement of refrigeration type compression equipment.
Examples 1 to 3 of the present application are only used to illustrate the feasibility of the technical solution and the excellence of the performance, since the present application uses a combination of many substances, it is impossible to fully exemplify the present application, and those skilled in the art can freely select the combination and obtain the compressor oil composition proposed in the present application according to the components and content ranges thereof given in the present application based on the teaching of the above examples, and the performance thereof is not substantially different from the performance of examples 1 to 3.
Although the present application has been described with reference to exemplary embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being covered by the following claims.
Claims (10)
1. The synthetic environment-friendly refrigerator oil is characterized by comprising base oil, an extreme pressure anti-wear agent, an antioxidant, a defoaming agent, a metal antirust agent and a metal deactivator, wherein the base oil is a mixture of API V synthetic ether base oil and API V synthetic ester base oil.
2. The synthetic eco-friendly refrigerator oil as claimed in claim 1, wherein the API group V PAG synthetic ether type base oil is selected from at least one of propylene oxide homopolymer and ethylene oxide/propylene oxide random homopolymer with different viscosity ranges at 40 ℃, and the API group V synthetic ester type base oil is selected from at least one of polyol ester, trimethylolpropane fatty acid ester and diisotridecyl adipate with different viscosity ranges at 40 ℃.
3. The synthetic environment-friendly refrigerator oil as claimed in claim 1, wherein the extreme pressure antiwear agent is a phosphorus-containing type or sulfur-phosphorus type extreme pressure antiwear agent, preferably at least one of triethyl phosphate, triphenyl phosphate, tricresyl phosphate, and nitrogen-containing derivatives of sulfur phosphate.
4. The synthetic environment-friendly refrigerator oil as claimed in claim 1, wherein the antioxidant is at least one of 2, 6-di-tert-butyl-p-cresol, 2, 6-di-tert-butyl mixed phenol, 4-methylenebis (2, 6-di-tert-butylphenol), N-phenyl-aniline, p-tert-butylphenol, butyl/octyl diphenylamine, zinc butyl octyl dithiophosphate.
5. The synthetic environment-friendly refrigerator oil as claimed in claim 1, wherein the defoaming agent is at least one of a methyl silicone type, a polymethacrylate type or a composite type defoaming agent.
6. The synthetic environment-friendly refrigerator oil as claimed in claim 1, wherein the content of the extreme pressure antiwear agent is 0.5-1.5%, the content of the antioxidant is 0.1-1.0%, and the content of the defoaming agent is 5-20ppm, based on 100% of the total weight of the environment-friendly refrigerator oil.
7. The synthetic environment-friendly refrigerator oil as claimed in claim 1, wherein the metal rust inhibitor is at least one of barium dinonylnaphthalene sulfonate, alkenyl succinate, zinc naphthenate and barium petroleum sulfonate.
8. The synthetic eco-friendly refrigerator oil according to claim 1 or 7, wherein the metal rust inhibitor is contained in an amount of 0.02 to 1.0% based on 100% by weight of the total synthetic eco-friendly refrigerator oil.
9. The synthetic environment-friendly refrigerator oil as claimed in claim 1, wherein the metal deactivator is at least one of benzotriazole and its derivatives, thiadiazole and its derivatives.
10. The synthetic eco-friendly refrigerator oil according to claim 1 or 9, wherein the metal deactivator is present in an amount of 0.03 to 0.1% based on 100% by weight of the total synthetic eco-friendly refrigerator oil.
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| CN202010652131.3A CN111690457A (en) | 2020-07-08 | 2020-07-08 | Synthetic environment-friendly refrigerator oil |
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| CN202010652131.3A CN111690457A (en) | 2020-07-08 | 2020-07-08 | Synthetic environment-friendly refrigerator oil |
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Application publication date: 20200922 |