CN103194303B - Air compressor oil composition and preparation method thereof - Google Patents
Air compressor oil composition and preparation method thereof Download PDFInfo
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Abstract
The invention provides an air compressor oil composition and a preparation method thereof. The air compressor oil composition comprises polyether oil base oil or polyether oil and ester oil mixture base oil, a 2,2,4-trialkyl-1,2-dihydroquinoline antioxidant and a metal deactivator. Compared with the known air compressor oil composition, the air compressor oil composition has excellent oxidation stability, excellent comprehensive performance and a simple preparation method, and is particularly suitable for a screw air compressor.
Description
Technical field
The present invention relates to a kind of air compressor oil composition, be exactly a kind of peace and quiet type lubricating oil composition that has high oxidation stability, detergency, strong refrigeration, is particularly useful for screw air compressor, composition of the present invention also can be used as screw air compressor refrigerant.
Background technology
Air compressor oil, there are screw rod, bearing, gear etc. in the primary lubricant position that particularly accounts at present the Screw Air Compressor Oil of market dominant position, by oil circulation play cooling, carry heat, peace and quiet, sealing screw rod and housing effect.
With respect to the lubricating oil of other types, the Working environment of air compressor oil is extremely harsh, main manifestations is high temperature, high keto sectional pressure, moisture and metal catalytic, long period work, therefore requires air compressor oil to have the thermal oxidation stability higher than other lubricating oil.By using phenol amine antioxidants mixture, or more additional phosphorous, sulphur and organometallics can improve oily oxidation-resistance property, but generally all exist, additive types is loaded down with trivial details, consumption is high, efficiency is low, or serves the problems such as detrimentally affect to other performance bands of lubricating oil in improving oxidisability.Chinese patent application CN101724489A discloses a kind of air compressor oil composition, and only its antioxidant component has just at least comprised phenols, amine and polymer thioether phenol three classes, and total consumption is also up to 3% left and right.
Current domestic air compressor oil base oil, still take mineral oil as main, accounts for 80%, but because it has that carbon residue is high, the shortcoming such as high temperature oxidation stable poor, volatility is high, flash-point is low, low temperature properties is poor, use temperature narrow range, be therefore synthesized gradually oil replace.Particularly in the time containing more sulfur-bearing, oxygen, nitrogen and aromatic compound in mineral oil, the carbon distribution that more easily produces in service, not only affects performance and the life-span of machine oil, increases friction and transmission energy consumption, but also has the fiery potential safety hazard such as explode.For guarantee air compressor particularly screw air compressor at suitable temperature, move, air compressor oil also needs to have good heat conductivity, can guarantee to remove rapidly the heat of compression process generation, plays cooling effect.In conventional synthetic oil, the heat conduction efficiency of polyethers is best, but in the majority with poly-alpha olefins and ester class oil in SYNTHETIC COMPRESSOR OIL base oil at present, the disclosed a kind of composite synthetic air compressor oil of for example Chinese patent application CN101538501A, it adopts two iso-alkyl side chain diesters, two iso-alkyl phthalic esters and poly-alpha olefins is base oil, add the additives such as oxidation inhibitor to make, this kind of air compressor oil is not so good as polyether-type air compressor oil on cooling performance.
Summary of the invention
the problem that invention will solve
Air compressor oil composition provided by the present invention can overcome above deficiency, and the most outstanding advantage is: (1) high-temperature thermal oxidation stability is good, and oxidation inhibitor service efficiency is high, and required oxidation inhibitor kind is few; (2) detergency is good, can not produce carbon deposit and sludge deposition; (3) there is superpower cooling performance.
for the scheme of dealing with problems
The invention provides a kind of air compressor oil composition, it comprises following component:
A, polyether oil base oil, or the mixture of polyether oil and ester class oil basis oil;
B, at least one 2,2,4-trialkyl-1,2-dihydroquinoline kind antioxidant;
C, at least one metal passivator;
D, at least one emulsion splitter;
E, at least one kilfoam.
In air compressor oil composition of the present invention, described 2,2,4-trialkyl-1,2-dihydroquinoline kind antioxidant is 2,2,4-trialkyl-1,2-dihydroquinoline monomer, its polymkeric substance, or their any mixture.
In air compressor oil composition of the present invention, described metal passivator is: benzotriazole or derivatives thereof, benzothiazole or derivatives thereof, thiadiazoles or derivatives thereof, benzoglyoxaline or derivatives thereof, indazole or derivatives thereof, or their any mixture.
In air compressor oil composition of the present invention, described emulsion splitter is polyoxy alkylidene ether, polyoxy alkylidene fatty acid ester, the condenses of amine and epoxy compounds, sulfonate type emulsion splitter, or their any mixture.
In air compressor oil composition of the present invention, described kilfoam is siloxanes, organosilicon acid esters, polyalkyl acrylate, tensio-active agent, or their any mixture.
In air compressor oil composition of the present invention, the weight ratio of described polyether oil and ester class oil is 100:0-50:50, preferably 95:5-80:20.
In air compressor oil composition of the present invention, take described air compressor oil composition gross weight as benchmark, the content of described B component is 0.1-5%, preferably 0.5-2%, more preferably 0.5-1.8%, most preferably 0.5-1%; The content of described C component metals passivator is 0.01-0.5%, preferably 0.03%-0.1%; Described D component emulsion splitter addition is 5-5000ppm, preferably 10-500ppm; Described E component kilfoam addition is 1-1000ppm, preferably 10-100ppm.
In air compressor oil composition of the present invention, the weight ratio of described B component and C component metals passivator is 50:1-2:1, preferably 20:1-5:1, more preferably 10:1-5:1.
In air compressor oil composition of the present invention, described air compressor oil composition further optionally contains F component: other oxidation inhibitor, anti-wear agent, rust-preventive agent, friction modifiers, dispersion agent, purification agent, pour point depressant, viscosity index improver or their combination except described B, C, D and E component.
The preparation method of air compressor oil composition of the present invention comprises: A component, B component, C component, D component, E component and the F component that optionally adds are mixed, at 20-60 ℃, be stirred to homogeneous transparent.
the effect of invention
Air compressor oil composition provided by the present invention, have the following advantages: (1) described B component and metal passivator (C component) have good efficient oxidation stability and Synergistic antioxidation, under suitable proportioning and consumption, the rotary oxygen bomb time of oil product can reach 2600min, far away higher than the product standard (rotary oxygen bomb value 1000min) of China's air compressor oil, thereby in the present invention largely, improved air compressor oil work-ing life, reach energy-saving and cost-reducing object; (2) B component used also has protection against corrosion, antibacterial, desinsection, germicidal action, has strengthened the over-all properties of air compressor oil; (3) selected polyether-type base oil, its oxidative degradation is performed until low molecule carbonyl or carboxylic compound, at high temperature low molecule carbonyl or carboxylic compound gasification volatilization, therefore do not generate settling and gelatinoid, guaranteed the high temperature detergency of oil product and suppressed settling to form ability; (4) polyether-type base oil has higher heat-conduction coefficient, and the heat of friction producing when the heat of compression producing can remove gas compression rapidly time and screw rod rotation, has played the effect of refrigerant, guarantees that machine normally moves; (5) select ester class oil to regulate the adaptability to sealing material, reach performance advantage complementation; (6) air compressor oil composition provided by the present invention is except having good oxidation-resistance and from peace and quiet ability, also there is good oilness, viscosity-temperature characteristics, low-temperature fluidity, low volatility, erosion resistance, anti-bubble and resistance to emulsion ability, over-all properties is good, is particularly useful for the job requirement of modern screw air compressor.
Embodiment
Being applicable to polyether oil of the present invention includes but not limited to use terminal hydroxyl wherein by the in addition alkylene oxide polymer of modification of for example esterification or etherificate, i.e. its homopolymer, multipolymer and derivative.These oil are illustrated as the polymkeric substance of preparing by the polymerization of oxyethane or propylene oxide, alkyl and phenyl ether (for example methyl polypropylene glycol ether with these polyoxyalkylene polymers, polyoxyethylene glycol diphenyl ether, also can comprise the Anaesthetie Ether of polypropylene glycol) or its list and for example C of acetic ester, mixing of polycarboxylate
3-C
8the C of fatty acid ester or Tetraglycol 99
13oxygen acid diester.
Suitable polyether oil comprises poly-alkoxyl group (oxyethyl group or propoxy-) glycol, poly-alkoxyl group monoether, poly-alkoxyl group bis ether, poly-alkoxyl group ether-ether, poly-alkoxyl group dibasic acid esters.More specifically, comprise the oxirane polyglycol ether of mixing, poly-Virahol bis ether, the oxirane polyglycol monoether of mixing, the oxirane glycol that gathers Isopropanediol, mixing, polytetramethylene glycol, polypropylene glycol, epoxy ethane-epoxy propane tercopolyureas hydroxy ethers, epoxy ethane-epoxy propane random copolymerization list ether, polypropylene glycol list ether, the two ether of polypropylene glycol etc.
For guaranteeing air compressor oil good breakdown of emulsion and a point water-based, polyether oil of the present invention is preferably the insoluble or oil-soluble polyethers of water.
Be applicable to the ester that ester class oil of the present invention comprises that monoprotic acid and single reaction of alkanol generate, suitable ester comprises that chemical formula is RCO
2those of R ', wherein R is C
4-C
10alkyl, R ' is C
4-C
12alkyl, preferably C
4-C
10alkyl, more preferably C
4-C
9alkyl, specifically comprise 2 ethyl hexanoic acid ester in the different ninth of the ten Heavenly Stems, the different monooctyl ester of 2 ethyl hexanoic acid, KAK88SX, enanthic acid ester in the different ninth of the ten Heavenly Stems, isoamyl acetic acid ester in the different ninth of the ten Heavenly Stems, valeric acid ester in the different ninth of the ten Heavenly Stems, valeric acid monooctyl ester, valeric acid ester in the last of the ten Heavenly stems, enanthic acid ester in the ninth of the ten Heavenly Stems, octyl beptoate.
Suitable ester class oil comprises dicarboxylic acid or polyprotonic acid (as hexanodioic acid, nonane diacid, phthalic acid, trimellitic acid linoleic acid dimer) and various alcohol, is such as but not limited to the ester that butanols, hexanol and dodecyl alcohol form.The concrete example of these esters comprises Polycizer W 260, phthalic ester, trimellitic acid ester, hexanodioic acid dodecyl ester, the just own ester of fumaric acid two.
Suitable ester class oil also comprises polyol ester, specifically comprises pentaerythritol ester, trimethylolethane ester, trihydroxymethylpropanyl ester, neo-pentyl binary alcohol esters, bis(pentaerythritolester), ditrimethylolpropane ester.
Another kind of suitable ester class oil also comprises complex ester, and it is to become long chain molecule by diprotic acid with dibasic alcohol ester, the base oil that end group obtains with monoprotic acid or monohydroxy-alcohol esterification again.
Described B component is a kind of ketoamine kind antioxidant, very effective to the protection of thermo-oxidative ageing, and the catalyzed oxidation of metal is also had to extremely strong restraining effect, and toxicity is little.B component comprises 2,2,4-trialkyl-1,2-dihydroquinoline monomer, or the polymkeric substance of above monomer, or the mixture of monomer and polymkeric substance, and wherein the structural formula of monomer is:
Wherein, as the R1 of trialkyl part, R2, R3 can be identical or different, they can be independently selected from any alkyl that does not affect this compound antioxygen property, more suitable selection low carbon atom number alkyl, the alkyl of for example C1-C6, the preferably alkyl of C1-C4, as methyl, ethyl, n-propyl, sec.-propyl, butyl and isomer thereof, most preferably R1, R2, R3 is methyl.
R4 is selected from H, alkyl or alkoxyl group, in the time that R4 is alkyl, the preferably alkyl of C1-C20, as methyl, ethyl, propyl group, butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, with and relevant isomer.In the time that R4 is alkoxyl group, the same preferably alkoxyl group of C1-C20, as methoxyl group, oxyethyl group, propoxy-, butoxy, pentyloxy, hexyloxy, heptan oxygen base, octyloxy, the ninth of the ten Heavenly Stems oxygen base, the last of the ten Heavenly stems oxygen base, undecane oxygen base, dodecyloxy, tridecane oxygen base, tetradecyloxyaniline, pentadecane oxygen base, n-Hexadecane oxygen base, heptadecane oxygen base, octadecane oxygen base, nonadecane oxygen base, eicosane oxygen base, with and relevant isomer.
2,2,4-trialkyl-1,2-dihydroquinoline polymer architecture formula is:
N is selected from the integer in 2-1000, preferably 2-10; More common 2,2,4-trialkyl-1,2-dihydroquinoline polymkeric substance comprises dimer, tripolymer, the tetramer, pentamer or the polymer of high-polymerization degree more, or their any mixture.
Described B component mention 2, 2, 4-trialkyl-1, in 2-dihydroquinoline monomer, more suitable has 2, 2, 4-trimethylammonium-1, 2-dihydroquinoline, 2-methyl-2, 4-diethyl-1, 2-dihydroquinoline, 2, 2, 4, 6-tetramethyl--1, 2-dihydroquinoline, 2, 2, 4, 7-tetramethyl--1, 2-dihydroquinoline, 2, 2, 4, 8-tetramethyl--1, 2-dihydroquinoline, 2, 8-dimethyl-2, 4-diethyl-1, 2-dihydroquinoline, 2, 7-dimethyl-2, 4-diethyl-1, 2-dihydroquinoline, 2, 6-dimethyl-2, 4-diethyl-1, 2-dihydroquinoline, 6-dodecyl-2, 2, 4-trimethylammonium-1, 2-dihydroquinoline, 6-oxyethyl group-2, 2, 4-trimethylammonium-1, 2-dihydroquinoline and 6, 6 '-bis-(2, 2, 4-trimethylammonium-1, 2-dihydroquinoline) etc.
The chain reaction of hydro carbons can be caused in metallic surface, the especially Cu of metal ion of trace
2+, Fe
3+, the oxidation of hydro carbons is played to katalysis.When adding metal passivator in lubricating oil, can suppress the katalysis of metal ion to oxidation.Be applicable to metal passivator of the present invention (C component) and have benzotriazole, tolyl-triazole, 4-alkyl benzotriazole, 5-alkyl benzotriazole, octyl group triazole, decyl triazole, dodecyl triazole, 2-mercaptobenzothiazole, 2,5-dimercapto-1,3,4-thiadiazoles, 2-alkyl dithio-5-sulfydryl-1, two (the alkyl dithio)-1 of 3,4-dithiadiazole and 2,5-, the derivative of 3,4-thiadiazoles, benzoglyoxaline, benzothiazole, toluene indazole and these materials.
These passivators or these two or more passivators of use capable of being combined can be used alone.
Described emulsion splitter (D component) is specifiable polyoxy alkylidene ether, polyoxy alkylidene fatty acid ester, or the condenses of amine and epoxy compounds, or sulfonate type emulsion splitter, for example polyoxyethylene polyoxypropylene propylene glycol, polyoxyethylene polyoxypropylene quadrol, polyoxyethylene polyoxypropylene ethyl phosphonic acid ester, Sodium dodecylbenzene sulfonate etc.
These emulsion splitters or these two or more emulsion splitters of use capable of being combined can be used alone.
Described kilfoam (E component) can be selected from siloxanes, organosilicon acid esters, polyalkyl acrylate, tensio-active agent etc.Can mention: dimethyl polysiloxane, fluorosilicone, diethyl silicon ester, polymethylmethacrylate, PFPE etc.
These kilfoams or these two or more kilfoams of use capable of being combined can be used alone.
According to GB/T265 test method measuring, described 40 ℃ of viscosity of polyether oil are 20-100mm
2/ s.
According to GB/T265 test method measuring, described 40 ℃ of viscosity of ester class oil are 10-100mm
2/ s.
The weight ratio of polyether oil and ester class oil is 100:0-50:50, preferably 95:5-80:20.
Take described air compressor oil composition gross weight as benchmark, the content of described B component in air compressor oil composition is 0.1-5%, preferably 0.5-2%, more preferably 0.5-1.8%, most preferably 0.5-1%.
Take described air compressor oil composition gross weight as benchmark, the content of described metal passivator in air compressor oil composition is 0.01-0.5%, preferably 0.03%-0.1%.
Described B component and metal passivator have anti-oxidant synergy, and two components by weight are 50:1-2:1, preferably 20:1-5:1, more preferably 10:1-5:1.
Take described air compressor oil composition gross weight as benchmark, described emulsion splitter addition can be 5-5000ppm, preferably 10-500ppm.
Take described air compressor oil composition gross weight as benchmark, described kilfoam addition can be 1-1000ppm, preferably 10-100ppm.
Base oil is all the other content.
Air compressor oil composition of the present invention can also contain F component: the conventional additive of machine oil such as other oxidation inhibitor except described B, C, D and E component, anti-wear agent, rust-preventive agent, friction modifiers, dispersion agent, kilfoam, all these additives can use the blend according to conventional methods of commercially available material.Generally, the add-on of these other oxidation inhibitor, anti-wear agent, friction modifiers is 0.01-1.5%, and rust-preventive agent add-on is 0.01-3%, and the add-on of dispersion agent is 0.01-5%, and the add-on of kilfoam is 0.001-0.01%.
The preparation method of air compressor oil composition provided by the invention comprises: above-mentioned A component, B component, C component, D component, E component and the F component that optionally adds are mixed, at 20-60 ℃, be stirred to homogeneous transparent.
Below provide embodiments of the invention.It should be noted that, these embodiment are only illustrative, the invention is not restricted to these embodiment.
< embodiment >
Embodiment 1
The peace and quiet type air compressor oil composition of a kind of high anti-oxidation, its preparation method is: get respectively 95g oil soluble polyethers OSP-46(Dow Chemical Company, lower same), 5g C8/C10 saturated polyol ester Priolube3970(Croda Chemical Company, lower same), the Naugalube TMQ(2 of 1.8g, 2, 4-trimethylammonium-1, 2-dihydroquinoline kind antioxidant, Uniroyal Chemical Company, Inc. lower same), thiadiazole derivative T561(Jinzhou Kangtai Lube Additive Co., Ltd. of 0.04g, lower same), 0.003g methyl-silicone oil T901(Jinzhou Kangtai Lube Additive Co., Ltd., lower same), 0.003g emulsion splitter propylene oxide/epoxyethane block copolymer
5957(Lubrizol Petroleum Chemical Company, lower with), put into 200ml beaker and mix, be stirred to homogeneous transparent at 50 ℃, obtain product I.
Embodiment 2
The peace and quiet type air compressor oil composition of a kind of high anti-oxidation, its preparation method is: thiadiazole derivative T561,0.003g T901, the 0.005g emulsion splitter of getting respectively Naugalube TMQ, the 0.1g of 100g oil soluble polyethers OSP-46,0.8g
5957, put into 200ml beaker and mix, be stirred to homogeneous transparent at 20 ℃, obtain product I I.
Embodiment 3
The peace and quiet type air compressor oil composition of a kind of high anti-oxidation, its preparation method is: get respectively 90g oil soluble polyethers OSP-32(Dow Chemical Company, lower with), 124 Triazole analog derivative T551(Jinzhou Kangtai Lube Additive Co., Ltd. of Naugalube TMQ, the 0.1g of 10g Priolube3970,0.6g, lower with), 0.003g T901,0.003g
5957 emulsion splitters, put into 200ml beaker and mix, and are stirred to homogeneous transparent at 50 ℃, obtain sample III.
Comparative example 1
Get respectively butyl octyl pentanoic oxidation inhibitor, thioether phenolic antioxidant-sulfo-diethylene two [3-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester], the 0.5g methylene-bis Keywords dibutyl dithiocarbamates of 0.3g, the 124 Triazole analog derivative T551 of 0.1g, 0.003g T901, the 0.003g of 90g oil soluble polyethers OSP-32,10g Priolube3970,0.5g
5957 emulsion splitters, put into 200ml beaker and mix, and are stirred to homogeneous transparent at 30 ℃, obtain sample IV.
Comparative example 2
The peace and quiet type air compressor oil composition of a kind of high anti-oxidation, its preparation method is: get respectively 90g oil soluble polyethers OSP-32,10g Priolube3970,0.6g Naugalube TMQ, 0.003g T901,0.003g
5957 emulsion splitters, put into 200ml beaker and mix, and are stirred to homogeneous transparent at 50 ℃, obtain sample V.
Above air compressor oil samples I-V is carried out to the analyzing and testing of the projects such as viscosity, viscosity index, demulsification resistance, anti-bubble, flash-point, pour point, oxidation stability, it is as shown in table 1 that specific performance detects index result:
Table 1
Table 1 data results shows, 2,2,4-trialkyl-1, and 2-dihydroquinoline kind antioxidant and metal passivator have good Synergistic antioxidation, and its oxidation stability is much better than traditional phenol amine type oxidation inhibitor.
Claims (8)
1. an air compressor oil composition, it is composed of the following components:
A, polyether oil base oil, or the mixture of polyether oil and ester class oil basis oil, the weight ratio of described polyether oil and ester class oil is 100:0-50:50;
B, at least one 2,2,4-trialkyl-1,2-dihydroquinoline kind antioxidant;
C, at least one metal passivator;
D, at least one emulsion splitter;
E, at least one kilfoam;
It is characterized in that, take described air compressor oil composition gross weight as benchmark, the content of described B component is 0.5-1.8%; The content of described C component metals passivator is 0.03%-0.1%; Described D component emulsion splitter addition is 5-5000ppm; Described E component kilfoam addition is 1-1000ppm,
Described 2,2,4-trialkyl-1,2-dihydroquinoline kind antioxidant is 2,2,4-trialkyl-1,2-dihydroquinoline monomer, its polymkeric substance, or their any mixture,
Described metal passivator is: benzotriazole, tolyl-triazole, 4-alkyl benzotriazole, 5-alkyl benzotriazole, octyl group triazole, decyl triazole, dodecyl triazole, 2-mercaptobenzothiazole, 2,5-dimercapto-1,3,4-thiadiazoles, 2-alkyl dithio-5-sulfydryl-1,3,4-dithiadiazole, 2, two (the alkyl dithio)-1 of 5-, one in 3,4-thiadiazoles, benzoglyoxaline, benzothiazole, toluene indazole or two or more
The weight ratio of described B component and C component metals passivator is 50:1-2:1.
2. air compressor oil composition according to claim 1, is characterized in that described emulsion splitter is polyoxy alkylidene ether, polyoxy alkylidene fatty acid ester, the condenses of amine and epoxy compounds, sulfonate type emulsion splitter, or their any mixture.
3. air compressor oil composition according to claim 1 and 2, is characterized in that described kilfoam is siloxanes, organosilicon acid esters, polyalkyl acrylate, or their any mixture.
4. air compressor oil composition according to claim 1 and 2, is characterized in that the weight ratio of described polyether oil and ester class oil is 95:5-80:20.
5. air compressor oil composition according to claim 1 and 2, is characterized in that, take described air compressor oil composition gross weight as benchmark, the content of described B component is 0.5-1%; Described D component emulsion splitter addition is 10-500ppm; Described E component kilfoam addition is 10-100ppm.
6. air compressor oil composition according to claim 1 and 2, is characterized in that the weight ratio of described B component and C component metals passivator is 20:1-5:1.
7. air compressor oil composition according to claim 6, is characterized in that the weight ratio of described B component and C component metals passivator is 10:1-5:1.
8. according to the preparation method of the air compressor oil composition described in claim 1-7 any one, comprising: A component, B component, C component, D component and E component are mixed, at 20-60 ℃, be stirred to homogeneous transparent.
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